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Publication numberUS3876459 A
Publication typeGrant
Publication dateApr 8, 1975
Filing dateJun 29, 1973
Priority dateJun 29, 1973
Publication numberUS 3876459 A, US 3876459A, US-A-3876459, US3876459 A, US3876459A
InventorsBurrill Peter Martin
Original AssigneeDow Corning
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Treatment of fibres
US 3876459 A
Images(7)
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Description  (OCR text may contain errors)

United States Patent 11 1 1111 3,876,459 Burrill 5] Apr. 8, 1975 [54] TREATMENT OF FTBRES FOREIGN PATENTS 0R APPLICATIONS [75] Inventor: Peter Martin Burrill, Glamorgan, 594901 11/1947 United Kingdom Wales 746,307 3/1956 United Kingdom [73] Assignee: Dow Corning Limited, London,

England Primary Examiner-William. E. Schulz Attorney, Agent, or FirmRobert F. Fleming, Jr. [22] Flled: June 29, 1973 [2]] Appl. No.: 374,848 [57] ABSTRACT Wool is rendered resistant to shrinkage on washing by [52] US. Cl. 117/141; 8/l27.6; 8/128 treatment with from 0.1 to l07c by weight ofa compo- [51] Int. Cl C08h 19/04 sition obtained by mixing (A) a polydiorganosiloxane [58] ield O Searc /12 128 ll7/l having terminal silicon-bonded hydroxyl radicals and 260/465 E (B) an organosilane RSiR,,X in which R is a monovalent radical containing at least two amine groups. R [56] References Cited is alkyl or aryl, X is alkoxy and n is 0 0r 1, and/or a UNITED STATES PATENTS partial hydrolysate and condensate of the silane. The 3,247,281 4/1966 Gagliardi 117/141 x applied compos'ton hereafter cured- 3,668,00l 6/1972 Hosokawa et al. 117 141 x D 3,705,823 12/1972 Hosokawa et al. 117/141 x 6 N0 rawmgs TREATMENT or FIBRES This invention relates to a process for the treatment of keratinous fibres.

It has been proposed to reduce the shrinkage of wool on washing by treatment with various organosilicon compounds. For example in U.K. Pat. Nos. 594,901, 613,267 and 629,329 it is proposed to reduce the normal tendency of wool to shrink by treating the wool with certain alkyl or aryl silanes. In UK. Pat. No. 746,307 there is disclosed a process for preventing the shrinkage of wool by treating the wool with a composition consisting of a diorganopolysiloxane, in which the organic substituents are alkyl, phenyl or alkenyl, and a siloxane containing silicon-bonded hydrogen atoms.

While the known processes have conferred a degree of shrink resistance on woollen fabrics this effect has not been durable to laundering. There has consequently been a need for a shrink resistant treatment having improved durability to washing and which imparts to the fibres a durable soft handle.

We have now discovered that the above recited advantages of durability of handle and shrink resistance may be realised by treatment of keratinous fibres with certain siloxane compositions.

According to this invention there is provided a process for the treatment of keratinous fibres which comprises applying thereto from 0.1 to 10% by weight, based on the weight of the fibres, of a composition comprising the product obtained by mixing (A) a polydiorganosiloxane having terminal silicon-bonded hydroxyl radicals and a molecular weight of at least 750, at least 50 percent of the organic substituents in the polydiorganosiloxane being methyl radicals, any other substituents being monovalent hydrocarbon radicals having from 2 to carbon atoms and (B) an organosilane of the general formula RSiR' X wherein R represents a monovalent radical composed of carbon, hydrogen, nitrogen and, optionally, oxygen, which radical contains at least two amine groups and is attached to silicon through a silicon to carbon linkage, R' represents an alkyl radical or an aryl radical, each X represents an alkoxy radical having from 1 to 14 inclusive carbon atoms and n is 0 or 1, and/or a partial hydrolysate and condensate of said organosilane, and thereafter curing the applied composition.

The invention also includes keratinous fibres whenever treated by the said process.

The polydiorganosiloxanes (A) are linear or substantially linear siloxane polymers having terminal siliconbonded hydroxyl radicals. Such polydiorganosiloxanes have about two, that is from about 1.9 to 2, organic radicals per silicon atom and methods for their preparation are well known in the art. The polydiorganosiloxanes should have an average molecular weight of at least 750 and preferably from 20,000 to 90,000.

At least 50 percent of the silicon-bonded organic substituents in the polydiorganosiloxane are methyl, any other substituents being monovalent hydrocarbon radicals having from 2 to 30 carbon atoms, for example alkyl and cycloalkyl radicals, e.g. ethyl, propyl, butyl, n-octyl, tetradecyl, octadecyl and cyclohexyl, alkenyl radicals e.g. vinyl and allyl and aryl, aralkyl and alkaryl radicals e.g. phenyl, tolyl and benzyl. A small proportion of hydroxyl radicals may be attached to nonterminal silicon atoms in the polydiorganosiloxane.

However, such non-terminal hydroxyl radicals should preferably not exceed about 5% of the total substitu ents in the polydiorganosiloxane. The preferred polydiorganosiloxanes are the polydimethylsiloxanes i.e. those represented by the formula HO S10 in which a is an integer preferably having a value such that the polydiorganosiloxane has a viscosity of from to 50,000 cS at 25C.

Component (B) of the compositions employed in the process of this invention is an organosilane of the general formula RSiR X wherein R, R, X and n are as defined hereinabove or may be a partial hydrolysate and condensate of said organosilane. Such organosilanes are known substances and they may be prepared as described, for example, in U.K. Pat. Nos. 858,445 and 1,017,257. In the general formula of the organosilanes the radical R is composed of carbon, hydrogen, nitrogen and, optionally, oxygen and contains at least two amine (which term includes imine) groups. It is attached to silicon through a silicon to carbon linkage, there being preferably a bridge of at least 3 carbon atoms separating the silicon atom and the nearest nitrogen atom or atoms. Preferably also, R contains less than about 21 carbon atoms and any oxygen is present in carbonyl and/or ether groups. Examples of the operative R substituents are (Cl-I NHCH CH NH (CH NHCH CH NHCH CH .CH.CH CH NHCH CH NH (CH NHCH CH NHCH CH NH and (Cl-l Nl-l(CH NHCH CH COOCH Each of the X substituents may be an alkoxy radical having from 1 to 14 carbon atoms, preferably from 1 to 4 carbon atoms. Examples of X radicals are methoxy, isopropoxy, hexoxy and decyloxy. When present R may be any alkyl or aryl radical, preferably having less than 19 carbon atoms, e.g. methyl, ethyl, propyl, octyl or phenyl. Preferred as component (B) are the organosilanes having the general formula RSiX wherein R represents the (CH NHCH Cl-l Nl-l or the Cl-l CHCH Cl-l NHCH CH Nl-l radicals and each X represents the methoxy or ethoxy radicals.

In the practice of this invention the product obtained by mixing components (A) and (B) is applied to keratinous fibres. When components (A) and (B) are mixed together at normal or elevated temperatures they react, at least partially. The product applied to the fibres will therefore usually comprise, at least in part, a reaction product of (A) and (B) rather than a simple mixture of these two. The composition may be applied to the keratinous fibres using any suitable application technique, for example by padding or spraying. Most conveniently the composition is applied in the form of a dispersion or solution in a liquid carrier. Preferably the compositions are applied as a solution in an organic solvent. Solvents which may be employed include the hydrocarbons and chlorinated hydrocarbons, for example toluene, xylene, white spirit and perchloroethylene. A particularly convenient method of treating the fibres is by application from an organic solvent solution employing a conventional dry-cleaning machine. When application from an aqueous medium is desired it is preferred to employ as component (B) organosilanes in which X contains 3 or more carbon atoms and to partially react (B) with (A), or with both (A) and (C), prior to emulsification.

The relative proportions of (A) and (B) employed in the preparation of the mixture may vary between fairly wide limits. Preferably from 0.5 to parts by weight of the silane (B) are employed per 100 parts by weight of (A), but proportions of (B) in excess of 15 parts, for example up to 50 parts or more are operative.

Following application of the composition the treated fibres are dried and the deposited composition cured. Drying and curing may be carried out by merely exposing the treated fibres to normal atmospheric temperatures (about C) for periods of from several hours to several days. If desired, however, this step may be expedited by the use of elevated temperatures, e.g. from 60 140C. Curing is believed to be initiated by traces of water. Under normal conditions the moisture present in the atmosphere and/or in the applied composition is sufficient for this purpose. If necessary, however, the water content of the curing environment may be supplemented.

According to a further aspect of this invention we have found that the time and/or temperature required for cure of the applied composition may be significantly reduced if there is incorporated in the applied composition certain silanes or partial hydrolysates thereof. In a preferred method of carrying out this invention therefore the composition applied to the fibres has incorporated therein a third component (C) which is (i) a silane of the formula R",,,SiZ where R" is a hydrogen atom or a monovalent hydrocarbon radical or monovalent halogenated hydrocarbon radical, Z is an alkoxy or alkoxy alkoxy radical having from 1 4 inclusive carbon atoms and m is 0 or 1 and/or (ii) a partial hydrolysate and condensate of the said silane. Compositions comprising (A), (B) and (C) are novel and are included within the scope of this invention.

In the general formula of the silane (i) R may be hydrogen atom or a monovalent hydrocarbon radical or halogenated hydrocarbon radical, for example alkyl, e.g. methyl, ethyl, propyl, butyl, hexyl, decyl, octadecyl, alkenyl e.g. vinyl or allyl, aryl, aralkyl or alkaryl e.g. phenyl, tolyl or benzyl, halogenoalkyl e.g. chloromethyl, bromoethyl 0r 3,3,3-trifluoropropyl and halogenoaryl e.g. chlorophenyl. The radical Z may be for example methoxy, ethoxy, propoxy or methoxyethoxy. Preferably Z is methoxy or ethoxy and R", when present, is methyl. Examples of the silanes (i) and their partial hydrolysis and condensation products (ii) are methyltrimethoxysilane, ethyltrimethoxysilane, n-propyltriethoxysilane, phenyltriethoxysilane, tetraethyl orthosilicate, n-butyl orthosilicate, ethyl polysilicate and siloxanes containing both silicon-bonded methyl radicals and methoxy radicals.

Component (C) is best incorporated into the composition by mixing with components (A) and (B) prior to dispersion or solution. The proportion of (C) employed is not narrowly critical. Preferably it is present in a proportion of from 1 to 20 percent by weight based on the total weight of (A) and (B).

Use of component (C) expedites curing of the applied composition and enables a more consistent improvement in shrink resistance to be obtained. The ex tent of the advantage obtained will vary somewhat depending on the nature of (C). As an indication, however, the presence of methyltrimethoxysilane in the composition enables significant shrink resistant properties to be obtained after several minutes cure at about C or by exposure to normal atmospheric temperatures for a period of from 4 to 24 hours.

The time and/or temperature required for curing the applied composition may also be reduced by incorporating in the composition a siloxane condensation catalyst. Such catalysts may be employed in place of or in addition to the silane component (C). Substances which function as siloxane condensation catalysts are well known in the art. Particularly suitable catalysts for use in the process of the present invention are the metal organic compounds, for example, the titanium alkoxides and chelates e.g. tetrabutyl titanate, tetraisopropyl titanate and di-isopropoxytitanium di(ethylactoacetate), and metal carboxylates e.g. stannous octoate, dibutyltin dilaurate, dibutyltin diacetate and lead octoate. The catalysts are employed in conventional catalytic proportions, normally from 0.1 to 5% by weight based on the combined weights of (A) and (B).

The use of siloxane condensation catalysts as described hereinabove can, however, significantly reduce the useful (bath) life of the compositions. In general therefore, the use of the siloxane condensation catalyst is less preferred than the incorporation of the silane (C) as a means of expediting curing.

The process of this invention finds application in the treatment of keratinous fibres to endow such fibres with a resistance to shrinkage on washing and also with a durable soft handle. The fibres may be treated in any form, any example of yarns, knitted or woven fabrics or made up garments. They may be present as the sole fibres or as blends with other types of fibre. Where improved handle of the treated fibres is the primary consideration, this may be achieved by depositing on the fabric as little as 0.1% of its weight of the composition. When a significant level of shrink resistance is required a somewhat higher level of application of the composition, e.g. from about 0.5 to 10%, preferably from 1 to 5%, is more appropriate. The weight of composition applied to the fibres, as referred to herein, means the weight of active ingredients namely (A) and (B), or (A), (B) and (C), deposited on the fibres.

If desired the treated fibres may be endowed with a firmer handle by including in the applied composition a resinous organosiloxane polymer, for example a resinous copolymer of (CH SiO and SiO groups.

The following examples, in which the parts are expressed by weight, illustrate the invention. The partial condensate of CH Si(OCI-I employed in certain of the examples was prepared by refluxing the silane with aqueous sodium hydroxide solution (0.25% by weight NaOI-I) for 3 hours. The partial condensate was then recovered after neutralisation and removal of volatiles.

Example 1 A composition was prepared by mixing Polydimethylsiloxane having terminal SiOH Three parts by weight of the composition were then dissolved in 97 parts by weight of toluene. This solution was used to treat 3 samples of 1:] cover factor, knitted 228s botany wool fabric by padding at 100% mangle expression. After treatment the samples were allowed to air dry at 22C for 1 hour and then placed in an air circulating oven at 120C for 5 minutes.

A square of cm. side was marked out on each of the treated samples employing a template and the samples were then washed in 1.25% by weight phosphate buffer solution (pl-I7) containing 1 g./litre of sodium dioctyl sulphosucciante. The temperature of the wash water was 40C and washing was carried out in a domestic automatic washing machine.

After 5 minutes the wash was interrupted and the dimensions of the marked square measured with the fabric in the wet state. The wash was then continued for 6 hours after which time the marked square was measured again.

The area felting shrinkage of the samples was then calculated according to the formula Area felting shrinkage (P8) width shrinkage (WS) X length shrinkage (LS) WS X LS/lOO The width shrinkage and length shrinkage were determined according to the formula Width or length shrinkage dimension after 5 minutes dimension after 6 hours. The average value of percentage area felting shrinkage for the 3 samples was 0.2%. The value obtained with control samples of untreated wool was 72%.

Example 2 The procedure of Example 1 was repeated except that the fabric samples were of chlorinated wool and washing of the samples was carried out in an International Cubex Machine according to the method of International Wool Secretariat Specification W.S.S. 128, Test Method No. 185 (Superwash specification).

In this case the value of area felting shrinkage obtained was 3.3%.

Example 3 Four compositions, designated A to D, were prepared by mixing:

Pol dimethylsiloxane as employed in xample 1 x parts X Si(CH NHCH,CH NH y parts Partial condensate of CH Si(OCH;,) '1. parts The values X x, y and z in the composition were as follows:

Three parts of each of the compositions was then dissolved in 97 parts of perchloroethylene and the compositions employed to treat samples of knitted botany wool fabric (228s, l:l cover factor) by padding at 100% mangle expression. After treatment the samples were allowed to dry and cure at 25C for 24 hours.

On completion of the 24 hour curing period the shrinkresist properties of the wool samples following washing were measured according to the procedure employed in Example 2. In each case the area felting shrinkage was less than 10%.

Example 4 The procedure of Example 1 was repeated except that the methyl trimethoxysilane component was omitted from the composition and the aminosilane was employed at a level of 10 parts per parts of polydimethylsiloxane. Cure of the applied composition in this case was brought about by exposing the treated fabric to a temperature of about 25C for 4 days.

The area felting shrinkage for the treated fabrics was measured according to the procedure of Example 2 and a value of 14% obtained.

Example 5 A composition was prepared by mixing:

Polydimethylsiloxane having terminal i SiOH 88.2 parts groups and M.Wt. 60.000

Partial condensate of CH;.Si(OCH 1.8 parts Three parts of the composition were dissolved in perchloroethylene (97 parts) and the solution applied to samples of knitted botany wool (228s, 1:1 cover factor) by padding at 100% mangle expression. The samples were then exposed to the air at 25C for 24 hours and the area felting shrinkage measured after washing according to Example 2. A value of 5% was obtained.

Example 6 Three compositions were prepared according to the following formulation Polydimethylsiloxanc of Example 1 88.2 parts (CH O -,Si(CH, NHCH CH N H 10 parts Silicate 1 .8 parts Example 7 The procedure of Example 1 was repeated except that the composition was prepared by mixing,

Polydimethylsiloxane as Example 1 (CH O) CH Si(CH )=.NHCI-I CH NH 5 parts parts The washing period was 3 hours, and curing was carried out for 30 minutes at 120C. The area felting shrinkage of the treated samples after washing'was 1%.

Example 8 Compositions were prepared by mixing,

Polydimethylsiloxane used in Example 1 Partial. condensate of CH Si(OC1-1 The compositions were applied to samples of botany wool by padding from 3% solutions in perchloroethylene. The samples were then dried by exposure to the ambient atmosphere (21C) for 4 hours. Measurement of the area felting shrinkage according to the procedure of Example 2 gave a value of 3.6% for the composition containing silane (a), 1.3% for (b) and 14.1% for (c).

That which is claimed is:

l. A process for the treatment of keratinous fibres which comprises applying thereto from 0.1 to 10% by weight, based on the weight of the fibres, ofa composition comprising the product obtained by mixing (A) a polydiorganosiloxane having terminal silicon-bonded hydroxyl radicals and a molecular weight of at least 750, at least 50 percent of the organic substituents present in the polydiorganosiloxane being methyl radicals, any other radicals being monovalent hydrocarbon radicals having from 2 to 30 carbon atoms, (B) up to 50 parts by weight per 100 parts (A) of an organosilicon compound selected from the group consisting of organosilanes of the general formula RSiR,,X wherein R represents a monovalent radical of less than 21 carbon atoms composed of carbon, hydrogen, nitrogen and, optionally, oxygen, which radical contains at least two amine groups and is attached to silicon through a silicon to carbon linkage, R represents a radical having less than 19 carbon atoms selected from the group consisting of alkyl radicals and aryl radicals, each X represents an alkoxy radical having from 1 to 14 inclusive carbon atoms and n is O or 1, and partial hydrolysate and condensate products of said organosilanes, and (C) in amount from that sufficient to significantly reduce the time and temperature required to cure the composition to 20 parts based on the weight of (A) and (B) of an organosilicon compound selected from the group consisting of (i) silanes of the general formula R",,,SiZ wherein R" represents a substituent selected from the group consisting of hydrogen atoms, monovalent hydrocarbon radicals having from 1 to 18 carbon atoms and monovalent halogenated hydrocarbon radicals having from 1 to 18 carbon atoms, Z represents a radical selected from the group consisting of alkoxy radicals and alkoxyalkoxy radicals having from 1 to 4 inclusive carbon atoms and m is or 1, and (ii) partial hydrolysates and condensates of (i), and

thereafter curing the applied composition.

2. A process as claimed in claim 1 wherein (C) is employed in a proportion of from 1 to 20 percent by weight based on the total weight of (A) and (B).

3. A process as claimed in claim 1 wherein (B) is an organosilane having the general formula RSiX in which R is selected from the group consisting of 88.2 parts parts 1 -8 Parts (CH NHCH CH NH and CH CHCH CH NHCH CH NH radicals and each X is selected from the group consisting of methoxy and ethoxy radicals.

4. A process as claimed in claim 3 wherein the composition is applied to the fibres as a solution in an organic solvent.

5. A composition comprising the product obtained by mixing (A) a polydiorganosiloxane having terminal silicon-bonded hydroxyl radicals and a molecular weight of at least 750, at least 50 percent of the organic substituents in the polydiorganosiloxane being methyl radicals, any other substituents being monovalent hydrocarbon radicals having from 2 to 30 carbon atoms, (B) an organosilicon compound selected from the group consisting of organosilanes of the general formula RSiR' X wherein R represents a monovalent radical composed of carbon, hydrogen, nitrogen and, optionally, oxygen, which radical contains at least two amine groups and is attached to silicon through a silicon to carbon linkage, R represents a radical having less than 19 carbon atoms selected from the group consisting of alkyl radicals and aryl radicals, each X represents an alkoxy radical having from 1 to 14 inclusive carbon atoms and n is 0 or 1, and partial hydrolysate and condensate products of said organosilanes, and (C) an organosilicon compound selected from the group consisting of (i) silanes of the general formula R",,,SiZ m wherein R" represents a substituent selected from the group consisting of hydrogen atoms, monovalent hydrocarbon radicals having from 1 to 18 carbon atoms and monovalent halogenated hydrocarbon radicals having from 1 to 18 carbon atoms, Z represents a radical selected from the group consisting of alkoxy radicals and alkoxyalkoxy radicals having from 1 to 4 inclusive carbon atoms and m is 0 or 1, and (ii) partial hydrolysates and condensates of (i) wherein component (B) is employed in a proportion of from 0.5 to 15 percent by weight based on the weight of (A) and component (C) is employed in a proportion of from 1 to 20 percent by weight based on the total weight of (A) and (B).

6. A composition as claimed in claim 5 which also comprises an organic solvent.

UNITED STATES PATENT AND TRADEMARK OFFICE CERTIFICATE OF (IORECTIN PATENT NO. 3,876, t59 DATED April 8, 1975 |NVENTOR(S) PETER MARTIN BURRILL and CHRISTOPHER MILES BROOKE It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

In the heading, CHRISTOPHER MILES BROOKE-- should be noted as the second inventor in this patent.

Signed and $ealed this twentieth D 3y Of April 1 9 76 [SEAL] 1 Arrest:

RUTH C. MASON Arresting Officer Disciaimer 3,876,459.Pete1- Martin Barri-Z1, Glamorgan, Vales. TREATMENT OF FIBRES. Patent dated Apr. 8, 1975. Disclaimer filed Dec. 8, 1975, by the assignee, Dow Owning Limited. Hereby enters this disclaimer to claims 5 and 6 of said patent.

[Ofiez'al Gazette Febwuowy 10, 1.976.]

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3247281 *Sep 27, 1961Apr 19, 1966Union Carbide CorpWater repellent compositions containing water soluble aminosilanes and aminosilicones as curing catalysts and process for treating substrates therewith
US3668001 *May 29, 1969Jun 6, 1972Kanegafuchi Spinning Co LtdFibrous structure having durable elasticity and crease-resistivity and its manufacture
US3705823 *Jul 30, 1970Dec 12, 1972Kanegafuchi Spinning Co LtdMethod of coating fibrous structure with a mixture of polyurethane pre-polymer and polyorganosiloxane
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4177176 *May 7, 1976Dec 4, 1979Dow Corning LimitedShrinkproofing wool
US4248590 *Mar 13, 1979Feb 3, 1981Th. Goldschmidt AgPreparation for shrinkproofing wool
US4273584 *Dec 7, 1979Jun 16, 1981Union Carbide CorporationDetergent resistant compositions
US4283191 *Mar 19, 1980Aug 11, 1981Th. Goldschmidt AgPreparation for shrinkproofing wool
US4292362 *Jan 19, 1978Sep 29, 1981Wacker-Chemie GmbhOrganopolysiloxane compositions and a process for treating organic fibers
US4299879 *May 22, 1980Nov 10, 1981Sws Silicones CorporationProcess for treating a textile material
US4344763 *Nov 15, 1977Aug 17, 1982The Gillette CompanyReactive silicone hair setting compositions
US4376149 *Jul 10, 1981Mar 8, 1983Sws Silicones CorporationReacting a silylated polyether with a silanol terminated polysiloxane for coating textiles
US4403011 *Dec 9, 1981Sep 6, 1983Ciba-Geigy CorporationTwo step polymer treatment
US4416793 *Sep 22, 1982Nov 22, 1983The Procter & Gamble CompanyLiquid detergent compositions containing amino-silanes
US4416794 *Sep 22, 1982Nov 22, 1983The Procter & Gamble CompanyRinse aid compositions containing amino-silanes
US4446033 *Sep 22, 1982May 1, 1984The Procter & Gamble CompanySoftening
US4446035 *Sep 22, 1982May 1, 1984The Procter & Gamble CompanyCleansing agents and the like with amino-silanes
US4448699 *Sep 22, 1982May 15, 1984The Procter & Gamble CompanyLaundry additive products containing amino-silanes
US4459382 *Aug 2, 1982Jul 10, 1984Toray Silicone Company, Ltd.Antisoil, antistatic agents, wrinkle resistance
US4541936 *Aug 20, 1984Sep 17, 1985Toray Silicone Company, Ltd.Mositure absorbability
US4559385 *Sep 10, 1984Dec 17, 1985Wacker-Chemie GmbhFor impregnating fibers to impart soft hand, polysiloxane with hydroxyl end groups and polysiloxane with basic nitrogen, silicon compound with si-o-c bonds, condensation catalyst
US4710405 *Aug 25, 1986Dec 1, 1987Dow Corning CorporationAdhesion of silicone elastomers obtained from aqueous emulsion
US4721511 *Oct 5, 1984Jan 26, 1988W. R. Grace & Co.Leach resistant antimicrobial fabric
US5000861 *Aug 23, 1989Mar 19, 1991Union Carbide Chemicals And Plastics Co. Inc.Stable emulsions containing amino polysiloxanes and silanes for treating fibers and fabrics
US5063260 *May 1, 1991Nov 5, 1991Dow Corning CorporationCompositions and their use for treating fibers
US5409620 *Dec 30, 1993Apr 25, 1995Dow Corning CorporationFiber treatment compositions containing organofunctional siloxanes and methods for the preparation thereof
US5413724 *Dec 30, 1993May 9, 1995Dow Corning CorporationFiber treatment compositions and methods for the preparation thereof
US5514418 *Jan 23, 1995May 7, 1996Dow Corning CorporationFiber treatment compositions and methods for the preparation thereof
US5518775 *Jan 23, 1995May 21, 1996Dow Corning CorporationFiber treatment compositions containing organofunctional siloxanes and methods for the preparation thereof
US5567347 *Jan 29, 1996Oct 22, 1996Dow Corning CorporationFiber treatment compositions containing organofunctional siloxanes and methods for the preparation thereof
US5665471 *Jan 29, 1996Sep 9, 1997Dow Corning CorporationFiber treatment compositions and methods for the preparation thereof
US5759926 *Nov 30, 1995Jun 2, 1998Kimberly-Clark Worldwide, Inc.Hydrophilic splittable multicomponent filaments
US6239048Dec 28, 1994May 29, 2001Fibermark, Inc.Dye is bound by a cationic or anionic binder such as a water soluble polymer or carrageenan. upon exposure to normal light, the dye generates singlet oxygen that kills microorganisms and viruses.
US6572968 *May 7, 2001Jun 3, 2003Hitachi Chemical Co., Ltd.Treating glass fiber base material with silicon oligomer with one functional end group reactive to hydroxyl group, impregnating the treated base matrial with a resin varnish, drying the impregnated base material
US6579325Aug 3, 2000Jun 17, 2003Ciba Specialty Chemicals CorporationSilicone compositions for treating wool materials
US6624100Jul 3, 2000Sep 23, 2003Kimberly-Clark Worldwide, Inc.Microfiber nonwoven web laminates
US6692792Apr 30, 2003Feb 17, 2004Hitachi Chemical Company, Ltd.Prepreg for printed wiring boards, resin varnish, resin composition, and laminate for printed wiring boards produced by using these substances
US6783806Mar 21, 2001Aug 31, 2004Ciba Specialty Chemicals CorporationCrosslinked polysiloxane blend with polyurethane comprising blocked isocyanate groups; textiles; feel, softness, shrinkage inhibition
CN101509188BMar 6, 2009Aug 8, 2012上海依福瑞实业有限公司Milled finishing agent with excitated negative oxygen ion, preparation method and uses thereof
EP0026366A1 *Sep 10, 1980Apr 8, 1981SWS Silicones CorporationSilylated polyethers, processes for preparing the same, compositions for treating textile materials and the coated textile materials thus treated
Classifications
U.S. Classification427/387, 428/375, 8/127.6, 428/447
International ClassificationD06M15/643, D06M15/37
Cooperative ClassificationD06M15/6436, D06M15/643
European ClassificationD06M15/643D, D06M15/643