WO2006094851A1

WO2006094851A1 - Coating agent aqueous compositions for flexible backgrounds

Info

Publication number: WO2006094851A1
Application number: PCT/EP2006/050246
Authority: WO
Inventors: Patrick GLÖCKNER; Andreas Wenning; Lutz Mindach; Peter Denkinger
Original assignee: Degussa Gmbh
Priority date: 2005-03-10
Filing date: 2006-01-17
Publication date: 2006-09-14
Also published as: DE102005010963A1; CN1942549A

Abstract

The invention relates to aqueous compositions of adhesive and coating agents for flexible backgrounds consisting of at least one type of binder, modified ketone/aldehyde resin and, optionally, of auxiliary agents and additives.

Description

Aqueous coating compositions for flexible substrates

The invention relates to aqueous adhesive and coating compositions for flexible substrates consisting of at least one binder, a modified ketone / aldehyde resin and optionally auxiliaries and additives.

The adhesive and coating compositions are used for the bonding, lamination and coating of flexible substrates, e.g. Films of plastics and / or composites such as e.g. aluminum-clad foils, textiles, fibers, fabric materials, leather, metals, cardboard, paper, paper laminates and / or synthetic materials, e.g. Foams, imitation leather, etc., the coating being largely free from formaldehyde. The adhesive and coating compositions are suitable for all customary application methods, such as e.g. Spraying, spraying, rolling, brushing, dipping, flooding, rolling, casting and printing.

The adhesive and coating compositions are characterized by a particularly high rate of drying, good water resistance and high hardness with very good elasticity.

Flexible articles are usually provided with an organic coating (see "Römpp Lexikon, paints and printing inks, publisher Dr. Ulrich Zorll, Georg Thieme Verlag, Stuttgart, 1998"), so - depending on the application - on the one hand to protect the material (eg protection of the article from aging, water and weathering, mechanical destruction, soiling, etc.) On the other hand, the organic coatings perform decorative functions.

Thus, e.g. Provide garments with impregnation for protection against weather conditions.

The printing of eg paper and foils serves on the one hand the information (brochures, packaging materials), on the other hand, this information is converted by layout design in the most appealing form possible. In addition to properties such as the highest possible drying rate, both good adhesion and elasticity properties and good abrasion resistance are of importance. After the application of the coating materials, rapid drying is desirable in order to ensure rapid further processing and to avoid defects caused, for example, by soiling, such as dust and dirt, etc.

Hard resins based on ketones and aldehydes are known to increase hardness while reducing the elasticity properties of coating materials.

Water-dispersible condensation products of ketones and aldehydes or their derivatives or reaction products which may contain such products are described in EP 0 617 103 A1, EP 0838485, EP 0838486 (DE 19643704), DE 25 42 090, DE-OS 31 44 673 and DE-OS 3406474 (EP 0154835).

In DE-OS 25 42 090 sulfo groups carrying water-soluble compounds are described, which are available deviating from the process of the invention in a common condensation reaction of cycloalkanone, formaldehyde and alkali metal bisulfite.

In DE-OS 31 44 673 water-soluble condensation products are listed, which are also obtained by joint reaction of ketones, aldehydes and acid groups introducing compounds. Examples of the latter are sulfites, amidosulfonic acid, aminoacetic acid and phosphorous acid salts.

According to DE-OS 25 42 090 and DE-OS 31 44 673, products containing electrolyte (eg Na ions) are obtained. However, such resins, among other things, deteriorate the water resistance of coating systems.

EP 0 617 103 A1 describes the reaction of polyisocyanates (a) and dihydroxyl compounds (b) with a molecular weight of 500 to 5,000 which do not convert groups into ionic groups (eg carboxylic acid groups), but rather other functional groups such as ester groups. or ether groups (see page 3, lines 17-21). The polyurethane thus obtained is still with a compound (c) which contains not only NCO-reactive groups nor a group convertible into an ionic group, and optionally with diols or polyols (d) having a molecular weight of 60 to 500, which are no further functional Wear groups (see page 4, lines 5 to 15), implemented. Subsequently, this reaction product is reacted with a condensation resin and converted into the aqueous phase.

DE 3406474 (EP 0154835) describes aqueous dispersions of ketone resins or ketone / aldehyde resins using organic protective colloids. The disadvantage that protective colloids remain in the subsequent coating and can adversely affect properties such as resistance to water and moisture, prevents their use in high-quality coating compositions.

EP 0838485 describes esterified products. It is known that ester groups hydrolyze resulting in polymer degradation and negatively affecting storage stability. In addition, a reaction or incompatibility with pigments can be caused by freely accessible acid groups.

EP 0838486 describes aqueous resin dispersions obtainable by reaction or proportionate reaction of

I. hydroxyl-containing ketone, ketone / aldehyde, urea / aldehyde resins or their hydrogenated derivatives and

II. At least one hydrophilic modified isocyanate and / or polyisocyanate having at least one free NCO group, obtainable by reacting at least one

Isocyanate and / or polyisocyanate with compounds which have in addition to the hydrophilic or potentially hydrophilic group at least one isocyanate-reactive function and which have a hydrogen active according to the Zerewitinoff test, and at least one hydrophilic group and / or a potentially hydrophilic group, and subsequent mixing of the neutralized resin with water.

Object of the present invention was to find aqueous adhesive and coating compositions for flexible substrates, the coating should be largely free of formaldehyde. The coating compositions should have a high drying rate and have a positive influence on hardness, water resistance and elasticity properties. The object underlying the invention has surprisingly been achieved by the use of special coating compositions, which are described in more detail below.

The invention relates to aqueous adhesive and coating compositions for flexible substrates, essentially containing

A) 20 to 95 wt .-% of at least one aqueous binder, and B) 5 to 80 wt .-% of a hydrophilized ketone / aldehyde resin and / or a hydrophilized, hydrogenated ketone / aldehyde resin, and C) 0 to 75 wt .-% of at least one additive, wherein the sum of the weights of component A) to C) is 100 wt .-%.

It has been found that the combination of the coating material compositions described below from components A) to C) fulfill all the required criteria.

Component A)

The aqueous binders A) essential to the invention are used in amounts of from 20 to 95% by weight, preferably from 30 to 80% by weight.

Preference is given to aqueous binders from the group of polyurethanes, polyacrylates, polyethers, polyesters, alkyd resins, cellulose ethers, derivatives of cellulose, polyvinyl alcohols and derivatives, rubbers, maleate resins, phenol / urea-aldehyde resins, aminoplasts (for example melamine, benzoguanamine resins), epoxy acrylates , Epoxy resins, silicic acid esters and alkali metal silicates (eg waterglass) and / or silicone resins and / or fluorine-containing polymers. The aqueous binders may be foreign and / or self-crosslinking, air-drying (physically drying) and / or oxidatively curing. Component B)

The component B) essential to the invention is used in amounts of from 5 to 80% by weight, preferably from 10 to 60% by weight.

As component B) are aqueous resin dispersions obtainable by reaction or proportionate reaction of

I. hydroxy-containing ketone / aldehyde resins or their hydrogenated derivatives and

II. At least one hydrophilic modified isocyanate and / or polyisocyanate having at least one free NCO group, obtainable by reacting at least one isocyanate and / or polyisocyanate with compounds which have at least one isocyanate-reactive function in addition to the hydrophilic or potentially hydrophilic group, and then Mixing of the optionally neutralized resin with water.

Suitable ketones for the preparation of the ketone / aldehyde resins (component I) are all ketones, in particular acetone, acetophenone, methyl ethyl ketone, heptanone-2, pentanone-3, methyl isobutyl ketone, cyclopentanone, cyclododecanone, mixtures of 2,2,4- and 2, 4,4-Trimethylcyclopentanon, cycloheptanone and cyclooctanone, cyclohexanone and all alkyl-substituted cyclohexanones having one or more alkyl radicals having a total of 1 to 8 hydrocarbon atoms, individually or in mixture. As examples of alkyl-substituted cyclohexanones, mention may be made of 4-tert-amylcyclohexanone, 2-sec-butylcyclohexanone, 2-tert-butylcyclohexanone, 4-tert-butylcyclohexanone, 2-methylcyclohexanone and 3,3,5-trimethylcyclohexanone. It is also possible in principle, although less preferably, to use ketones which have other functional groups, such as e.g. Amino and / or acid groups grout.

In general, however, all in the literature for ketone and ketone / aldehyde resin syntheses called suitable ketones, usually all CH-acidic ketones, can be used. Preferred are ketone / aldehyde resins based on acetophenone, cyclohexanone, 4-tert-butylcyclohexanone, 3,3,5-trimethylcyclohexanone and heptanone alone or in a mixture. As aldehyde component of the ketone / aldehyde resins (component I.) are in principle unsubstituted or branched aldehydes, such as. As formaldehyde, acetaldehyde, n-butyraldehyde and / or iso-butyraldehyde, valeric aldehyde and dodecanal. In general, all the aldehydes mentioned in the literature as suitable for ketone / aldehyde resin syntheses can be used. Preferably, however, formaldehyde is used alone or in mixtures.

The required formaldehyde is usually used as about 20 to 40 wt .-% aqueous or alcoholic (eg, methanol or butanol) solution. Other uses of formaldehyde such. As well as the use of para-formaldehyde or trioxane are also possible. Aromatic aldehydes, such as. B. benzaldehyde may also be included in admixture with formaldehyde.

As starting compounds for the ketone / aldehyde resins of component I, particular preference is given to using acetophenone, cyclohexanone, 4-tert-butylcyclohexanone, 3,3,5-trimethylcyclohexanone and also heptanone alone or in a mixture and formaldehyde.

The resins of ketone and aldehyde can also be hydrogenated in the presence of a suitable catalyst with hydrogen at pressures of up to 300 bar. In this case, part of the carbonyl groups of the ketone / aldehyde resin is converted into secondary hydroxyl groups. For resins of aldehydes and ketones which, in addition to the carbonyl moiety, have further hydrogenatable functions, e.g. have aromatic structures, these other structures can be converted by suitable hydrogenation. In the case of e.g. aromatic structures are obtained cycloaliphatic structures.

The optionally necessary hydrophilic modification takes place, for example, by reacting the resin I with a component IL consisting of at least one hydrophilically modified isocyanate and / or polyisocyanate having at least one free NCO group obtainable by reacting at least one isocyanate and / or polyisocyanate with compounds which, in addition to the hydrophilic or potentially hydrophilic group - ie those groups which become hydrophilic only after neutralization - have at least one isocyanate-reactive function, for example hydroxy or amino groups. Examples of such compounds for the hydrophilic modification of (poly) isocyanates are amino acids, hydroxysulfonic acids, aminosulfonic acids and hydroxycarboxylic acids. Preference is given to using dimethylolpropionic acid or derivatives thereof. The hydrophilic modification can also be carried out with non-ionic groups (eg with polyethers) or already neutralized compounds.

Hydroxycarboxylic acids, in particular dimethylolpropionic acid, are therefore particularly preferred because they are neutralized with volatile bases, such as. As amines, show strong hydrophilic effect, after evaporation of the volatile base, however, this effect decreases greatly. Coatings therefore do not lose by e.g. Moisturizing their protective function, as a swelling does not take place.

The dimethylolpropionic acid is also particularly preferred since it is capable of hydrophilically modifying (potentially) two hydrophobic polyisocyanates via its two hydroxyl groups.

Suitable polyisocyanates for the preparation of II. Are preferably di- to tetrafunctional polyisocyanates. Examples thereof are cyclohexane diisocyanate, methylcyclohexane diisocyanate, ethylcyclohexane diisocyanate, propylcyclohexane diisocyanate, methyldiethylcyclohexanediisocyanate, phenylenediisocyanate, tolylene diisocyanate, bis (isocyanatophenyl) methane, propane diisocyanate, butane diisocyanate, pentane diisocyanate, hexane diisocyanate, such as hexamethylene diisocyanate (HDI) or 1,5-diisocyanato-2-methylpentane (MPDI ), Heptane diisocyanate, octane diisocyanate, nonane diisocyanate such as 1,6-diisocyanato-2,4,4-trimethylhexane or 1,6-diisocyanato-2,2,4-trimethylhexane (TMDI), nonane triisocyanate such as A-isocyanatomethyl-ljδ-octane diisocyanate (TIN), decane and triisocyanate, undecanediol and triisocyanate, dodecandi- and triisocyanates, isophorone diisocyanate (IPDI), dicyclohexylmethane-4,4'-diisocyanate (H ₁₂ MDI), isocyanatomethylmethylcyclohexyl isocyanate, 2.5 (2, 6) - bis (isocyanato-methyl) bicyclo [2.2.1] heptane (NBDI), 1, 3-bis (isocyanatomethyl) cyclohexane (1,3-H ₆ -XDI) or 1,4-bis (isocyanatomethyl) cyclohexane (1,4-H ₆ -XDI) al alone or in mixture. Another preferred class of polyisocyanates are the compounds prepared by di- or trimerization, allophanatization, biuretization and / or urethanization of simple diisocyanates with more than two isocyanate groups per molecule, for example the Reaction products of these simple diisocyanates, such as IPDI, HDI and / or H ₁₂ MDI with polyhydric alcohols (eg glycerol, trimethylolpropane, pentaerythritol) or polyfunctional polyamines or triisocyanurates, by trimerization of simple diisocyanates, such as IPDI, HDI and H ₁₂ MDI, are available.

Particularly preferred is a hydrophilically modified polyisocyanate (II)

Dimethylolpropionic acid or derivatives thereof and IPDI and / or TMDI and / or H ₁₂ MDI and / or HDI in a molar ratio of 1: 2.

The preparation of component B) is carried out in the melt or in solution of a suitable organic solvent, which - if desired - can be separated by distillation after preparation.

Preferred solids contents in the case of a reaction in solution are 30 to 95 wt .-%, particularly preferably 60 to 80 wt .-%.

Suitable auxiliary solvents are low-boiling inert solvents which do not form a miscibility gap with water over wide ranges, have a boiling point at atmospheric pressure below 100 ° C. and, if desired, can be easily distilled to a residual content of less than 2% by weight and in particular of less than 0.5% by weight, based on the final dispersion or aqueous solution, and that it can be reused. Suitable solvents of this kind are e.g. Acetone, methyl ethyl ketone or tetrahydro-uranium. In principle, higher-boiling solvents, such as, for example, are also suitable. n-butylglycol, di-n-butylglycol and N-methylpyrrolidone, which then remain in the dispersion.

However, one advantage of component B) lies precisely in the fact that it is possible completely to dispense with organic solvents in the finished aqueous resin dispersion and still obtain solids-rich, stable dispersions.

The reaction of I and II is preferably allowed to proceed to the extent that a residual NCO content of 1% NCO (determined according to DIN 53185) is exceeded, and particularly preferably progresses so far that the residual NCO content of the product of I and II is in the range of 0.1 to 0.5% NCO. In the reaction of I and II unreacted remaining NCO functions can, according to the prior art, either chain extension reactions, z. For example, by adding polyamines or water use, or if necessary, a chain termination by addition to NCO groups monofunctional compounds (eg., Monoalcohols, monoamines) initiate.

In the case of potentially hydrophilic groups, the products according to the invention can be mixed with a suitable neutralizing agent, which then gives water-dilutable, water-dispersible or water-soluble products.

The neutralization of the potentially hydrophilic groups of the resins prepared according to the invention can be carried out with inorganic and / or organic bases, e.g. Ammonia or organic amines. Preference is given to using primary, secondary and / or tertiary amines, e.g. Ethylamine, propylamine, dimethylamine, dibutylamine, cyclohexalamine, benzylamine, morpholine, piperidine and triethanolamine. Particularly preferred are volatile, tertiary amines, in particular dimethylethanolamine, diethylethanolamine, 2-dimethylamino-2-methyl-1-propanol, triethylamine, tripropylamine and tributylamine in the case of anionic potential groups. So-called cationic potential ionic groups can be neutralized with inorganic and / or organic acids, e.g. Acetic acid, formic acid, phosphoric acid, hydrochloric acid, etc.

The degree of neutralization is preferably 50 to 130% of the neutralization amount necessary for stoichiometric neutralization.

The neutralized hydrophilic resin or the resin solution is either passed into water or it is preferably mixed with water while stirring. Before adding water can

Reaction product of I and II optionally with other non-hydrophilic set

Resins or other components combined and then dispersed together. By this measure, a technically advantageous high solids content of the dispersions of over 45 wt .-% can be achieved. Basically, the solids content ranges between 20 and 70 wt .-%, preferably between 25 and 60 wt .-%.

After dispersing, the organic auxiliary solvent can preferably be removed in vacuo and, if appropriate, worked up again. Component C)

Component C) is used in amounts of from 0 to 75% by weight, preferably from 5 to 70% by weight.

As component C) are suitable auxiliaries and additives such as inhibitors, organic solvents, surface-active substances, oxygen and / or radical scavengers, catalysts, light stabilizers, color brighteners, photosensitizers and initiators, additives for influencing theological properties such. Thixotropic and / or thickening agents, leveling agents, anti-skinning agents, defoamers, antistatic agents, lubricants, wetting and dispersing agents, plasticizers, preservatives, e.g. also fungicides and / or biocides, thermoplastic additives, dyes, pigments, matting agents, fire protection equipment, internal release agents, fillers, Isocyanathärter and / or blowing agents.

Preparation of Adhesive and Batch Compositions from Components A) to C):

The preparation of the adhesive and coating compositions is carried out by intensive mixing of the components at temperatures of 20 to 80 ° C ("Textbook of Lacktechnologie", Th. Brock, M. Groteklaes, P. Mischke, ed. V. Zorll, Vincentz Verlag, Hannover , 1998, page 229 ff).

Non-liquid components may be first dissolved in suitable solvents or water prior to mixing, then the remaining components are added with stirring. In the case of e.g. Pigments and / or fillers are dispersed. The formaldehyde content of the adhesive and coating compositions is below 100 ppm, preferably below 20 ppm and more preferably below 10 ppm.

The claimed aqueous adhesive and coating compositions are suitable for coating flexible articles of various materials, such as films of plastics and / or composites such as aluminum-laminated films, textiles, fibers, fabric materials, leather, cardboard, paper, paper laminates and / or synthetic materials, wherein the coating is largely free of formaldehyde. The coating compositions are suitable for all customary application methods.

The dried, cured or crosslinked films have good adhesion properties on underlying coatings; Also, the intercoat adhesion to overlying layers is positively affected.

The claimed aqueous adhesive and coating compositions have a satisfactory course on the substrates used and are free of surface defects, such as craters and wetting disorders.

The claimed aqueous adhesive and coating compositions have a solids content of from 10% to 80%, preferably from 20% to 60%.

The adhesive and coating compositions of the present invention are used as monolayer paints such as e.g. Topcoats and clearcoats, used as impregnations, glazes, fillers, primers, basecoats for multicoat paint systems and as printing inks and adhesives.

The following examples are intended to further illustrate the invention but not to limit its scope:

Examples

Component A)

A polyurethane dispersion W-PT 532 from Degussa AG with the following characteristics was used: solids 35.5%, pH 7.6, viscosity 77 mPa-s. Preparation of component B)

1. Preparation of the adduct

444 g of isophorone diisocyanate are added with stirring to a mixture of 134 g of dimethylolpropionic acid, 380 g of acetone and 6 g of a 10% strength by weight solution of dibutyltin dilaurate in acetone so that the exothermic reaction remains readily controllable. It is heated to 60 ° C and held this temperature up to an NCO number of 9.2%. To the cooled to room temperature solution is added with stirring 2300 g of a 55% by weight acetone solution of hydrogenated acetophenone / formaldehyde resin (synthetic resin SK Degussa AG) and 12 g of a 10 wt .-% acetone DBTL solution and heated to the reflux temperature of about 60 ° C. The mixture is allowed to stir at this temperature until the NCO number of the solution has fallen below 0.1% NCO.

2. Transfer to the aqueous phase

Alternative A: The solution of the hydrophilically modified resin prepared under 1) is neutralized at room temperature with stirring by adding 89 g of dimethylaminoethanol and the solution is dispersed by adding 4200 g of demineralized water with stirring. The auxiliary solvent acetone and water proportionally are removed in vacuo to give a storage-stable, finely divided, slightly opalescent resin dispersion having a solids content of about 33% by weight.

Alternative B:

The solution prepared under 1) is added with stirring 3300 g of a 55 wt .-% strength acetone solution of a hydrogenated acetophenone / formaldehyde resin (synthetic resin SK Degussa AG), neutralized at room temperature with stirring with 89 g of dimethylaminoethanol and dispersed by adding the solution of 4400 g of demineralized water with stirring. The auxiliary solvent acetone and water as a proportion are removed in vacuo and obtain a storage-stable whitish dispersion having a solids content of about 50 wt .-%. Properties of the dispersions Storage stability

The dispersions A and B according to point 2) were examined for storage stability with regard to changes in the pH, the viscosity and the visual appearance.

* Rotational Viscosimeter: D: 100 to 900 s ^"

Example of a coating material composition:

The paints were applied to aluminum panels and dried at 80 ° C for 30 minutes. Aluminum panels have been used because it is easy to measure the pendulum hardness and the Erichsen recess and thus it can be documented that the hardness can be improved without compromising flexibility.

By adding component B, the hardness, adhesion and gloss of the coatings are improved without the flexibility deteriorating.

Claims

claims:

1. Aqueous adhesive and coating compositions for flexible substrates substantially comprising A) 20 to 95 wt .-% of at least one aqueous binder, and

B) from 5 to 80% by weight of a hydrophilized ketone / aldehyde resin and / or a hydrophilized, hydrogenated ketone / aldehyde resin, and C) from 0 to 75% by weight of at least one additive, wherein the sum of the weights of component A ) to C) is 100% by weight.

2. Aqueous adhesive and coating composition according to claim 1, characterized in that the solids content of the coating compositions is between 10 wt .-% to 80 wt .-%, preferably between 20 wt .-% and 60 wt .-%, the formaldehyde content of Coating compositions below 100 ppm, preferably below 50 ppm and more preferably below 10 ppm and the content of organic solvents less than 20 wt .-%, preferably less than 10 wt .-%, more preferably less than 2 wt .-%.

3. Aqueous adhesive and coating composition according to claims 1 and 2, characterized in that as component A) aqueous binders from the group polyurethanes, polyacrylates, polyethers, polyesters, alkyd resins, cellulose ethers, derivatives of cellulose, polyvinyl alcohols and derivatives, rubbers, maleate resins , Phenol / urea-aldehyde resins, aminoplasts (eg melamine, benzoguanamine resins), epoxy acrylates, epoxy resins, silicic acid esters and alkali silicates (eg water glass) and / or silicone resins and / or fluorine-containing polymers may be used alone or in admixture.

4. Aqueous adhesive and coating composition according to claim 3, characterized the aqueous binders which are preferred as component A) are foreign and / or self-crosslinking, air-drying (physically drying) and / or oxidatively curing.

5. Aqueous adhesive and coating composition according to any one of the preceding claims, characterized in that as component B) aqueous resin dispersions are used, obtainable by

Implementation or proportionate implementation of

Isocyanate and / or polyisocyanate with compounds which in addition to the hydrophilic or potentially hydrophilic group have at least one isocyanate-reactive function, and subsequent mixing of the optionally neutralized resin with water.

6. Aqueous adhesive and coating composition according to claim 5, characterized in that as component I for the preparation of component B) resins are used which

Contains C-H-acidic ketones.

7. Aqueous adhesive and coating composition according to claim 6, characterized in that C-H-acidic ketones selected from acetone, acetophenone, methyl ethyl ketone,

Heptanone-2, pentanone-3, methyl isobutyl ketone, cyclopentanone, cyclododecanone, mixtures of 2,2,4- and 2,4,4-trimethylcyclopentanone, cycloheptanone and cyclooctanone, cyclohexanone and all alkyl-substituted cyclohexanones having one or more alkyl radicals containing a total of 1 to Have 8 hydrocarbon atoms, used individually or in mixture.

8. Aqueous adhesive and coating composition according to claim 7, characterized in that as alkyl-substituted cyclohexanones 4-tert-amylcyclohexanone, 2-sec-butylcyclohexanone, 2-tert-butylcyclohexanone, 4-tert-butylcyclohexanone, 2-methylcyclohexanone and 3,3,5-trimethylcyclohexanone alone or in a mixture be used.

9. Aqueous adhesive and coating composition according to claim 5, characterized in that as component I for the preparation of component B) resins are used which contain aldehydes.

10. Aqueous adhesive and coating composition according to one of the preceding claims, characterized in that as the aldehyde component for the preparation of component I of component B)

Formaldehyde, acetaldehyde, n-butyraldehyde and / or isobutyraldehyde, valeric aldehyde, dodecanal are used alone or in mixtures.

11. Aqueous adhesive and coating composition according to any one of the preceding claims, characterized in that hydrogenation products of the resins of acetophenone, cyclohexanone, 4-tert-butylcyclohexanone, 3,3,5-trimethylcyclohexanone, heptanone alone or in admixture and formaldehyde as component I. . are used.

12. Aqueous adhesive and coating composition according to any one of the preceding claims, characterized in that the component II. Of component B) is prepared using tert. Amino alcohols, aminocarboxylic acids, hydroxysulfonic acids, aminosulfonic acids and / or hydroxycarboxylic acids.

13. Aqueous adhesive and coating composition according to any one of the preceding claims, characterized in that the component II. Of component B) is prepared using dimethylolpropionic acid.

14. Aqueous adhesive and coating material composition according to any one of the preceding claims, characterized in that the component II. Of component B) is already neutralized before reacting with component I.

15. Aqueous adhesive and coating composition according to any one of the preceding claims, characterized in that are used for the preparation of II. Of component B) di- to tetrafunctional polyisocyanates.

16. Aqueous adhesive and coating composition according to any one of the preceding claims, characterized in that for the preparation of II. Of component B) polyisocyanates having aromatic, aliphatic and / or cycloaliphatic bound isocyanate groups or mixtures thereof are used.

17. Aqueous adhesive and coating composition according to one of the preceding claims, characterized in that 1-isocyanato-3.3.S-trimethyl-S-isocyanatomethylcyclohexane (isophorone diisocyanate; IPDI), trimethylhexamethylene diisocyanate (TMDI), 1,6-diisocyanatohexane (HDI), bis- (4-isocyanatohexyl) methane (H ₁₂ MDI) can be used alone or in a mixture.

18. Aqueous adhesive and coating composition according to any one of the preceding claims, characterized in that for the preparation of II. Of component B) polyisocyanates with biuret, uretdione or isocyanurate structure are used.

19. Aqueous adhesive and coating composition according to any one of the preceding claims, characterized in that for the preparation of II. Component B) polyisocyanates from the reaction of polyhydric alcohols and / or amines are used with monomeric isocyanates.

20. Aqueous adhesive and coating composition according to any one of the preceding claims, characterized in that for the preparation of II. Of component B) dimethylolpropionic acid and isophorone diisocyanate, trimethylhexamethylene diisocyanate, 1,6-diisocyanatohexane and / or bis (4-isocyanatohexyl) methane in a molar ratio of 1 : 2 are used.

21. Aqueous adhesive and coating material composition according to any one of the preceding claims, characterized in that the reaction of I. and II. The component B) and the subsequent dispersion carried out in bulk or in the presence of an auxiliary solvent.

22. Aqueous adhesive and coating composition according to the preceding claim, characterized in that the auxiliary solvent used has a boiling point below 100 ° C at 1013 hPa.

23. Aqueous adhesive and coating composition according to the preceding claim, characterized in that the auxiliary solvent used acetone and / or methyl ethyl ketone and / or

Tetrahydrofuran is.

24. Aqueous adhesive and coating composition according to any one of the preceding claims, characterized in that the neutralization of component B) is carried out with inorganic or organic bases.

25. Aqueous adhesive and coating composition according to the preceding claim, characterized in that are used for the neutralization of dimethylethanolamine and / or diethylethanolamine or / and 2-dimethylamino-2-methyl-l-propanol.

Aqueous adhesive and coating composition according to any preceding claim, characterized in that for neutralization 50 to 130% of the amount of neutralization necessary for stoichiometric neutralization is used.

27. Aqueous adhesive and coating composition according to any preceding claim, characterized in that one or more water-insoluble or water-dilutable prior to addition of water

Components are added.

28. Aqueous adhesive and coating composition according to any preceding claim, characterized in that auxiliaries and additives are used as component C).

29. Aqueous adhesive and / or coating composition according to any preceding claim, characterized in that as component C) auxiliaries and additives are used alone or in mixture, selected from the group of inhibitors, organic solvents, surface-active

Substances, oxygen and / or free radical scavengers, catalysts, light stabilizers, color brighteners, photosensitizers and initiators, additives for influencing theological properties, such as e.g. Thixotropic and / or thickening agents, leveling agents, skin preventatives, defoamers, plasticizers, antistatic agents, lubricants, wetting and dispersing agents, preservatives, e.g. also fungicides and / or biocides, thermoplastic additives, dyes, pigments, matting agents, fire protection equipment, internal release agents, fillers, Isocyanathärter and / or blowing agents.

30. A process for the preparation of aqueous adhesive and / or coating compositions essentially containing

A) 20 to 95 wt .-% of at least one aqueous binder, and

B) 5 to 80 wt .-% of a hydrophilized ketone / aldehyde resin and / or a hydrophilized, hydrogenated ketone / aldehyde resin, and

C) 0 to 75 wt .-% of at least one additive, wherein the sum of the weights of component A) to C) is 100 wt .-%, by intensive mixing by stirring and / or dispersing the components at temperatures of +20 to + 80 ° C.

31. Use of the aqueous adhesive and / or coating compositions according to at least one of the preceding claims for the finishing of flexible articles.

32. Use of the aqueous adhesive and / or coating compositions according to at least one of the preceding claims for the finishing of flexible articles such as films of plastics and / or composite materials such as aluminum-clad Films, textiles, fibers, fabric materials, leather, metals, cardboard, paper, paper laminates and / or synthetic materials.

33. Use of the aqueous adhesive and / or coating compositions according to at least one of the preceding claims as single-coat paints, such as e.g. Deck and

Clearcoats, as impregnations, glazes, fillers, primers, basecoats for

Multi-layer coatings as well as printing inks and as bonds for flexible

Items.

34. Coated articles produced and / or finished with an adhesive and / or coating composition according to at least one of the preceding claims.