US2432747A - Coated wall tile - Google Patents

Coated wall tile Download PDF

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Publication number
US2432747A
US2432747A US45400342A US2432747A US 2432747 A US2432747 A US 2432747A US 45400342 A US45400342 A US 45400342A US 2432747 A US2432747 A US 2432747A
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Prior art keywords
composition
tile
coating
resin
titanium dioxide
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Expired - Lifetime
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Elbert R Gilbert
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EIDP Inc
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EI Du Pont de Nemours and Co
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Priority to US45400342 priority Critical patent/US2432747A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
    • B05D7/08—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood using synthetic lacquers or varnishes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F11/00—Designs imitating artistic work
    • B44F11/06—Imitation of ceramic patterns
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]
    • Y10T428/3179—Next to cellulosic

Definitions

  • This invention has as the principal object the provision of compositions and a coating system for applying such compositions to produce wall board tile.
  • Another object is the provision of wall tile board having improved gloss and having a harder, tougher and highly mar resistant surface.
  • St'iil'another object is the provision of wall board tile having a surface which is highly resistant to conditions of high humidity, to soap and soapy materials and to grease.
  • a further object is the provision of such wall board tile with a minimum number of coatings which eliminates extensive sanding and buffing operations and results in ready production of a first quality product.
  • a suitable substrate as wall board a knife coat of surfacer, a spray coat of primer composition and a spray i'opcoat or finishing composition, the surfacer compositions being of a new and improved type as hereinafter described.
  • This material may be prepared in accordance with (U. S. Patent 2,034,797.
  • the term is intended to include the usual fillers, such as whiting, barytes or similar alkaline earth carbonates, magnesium silicate, and the like which have been subjected to severe attrition in the presence of an anti-compactant and lnterbonding agent, such as rosin and stearic acid as set forth in the patent referred to.
  • the China-wood oil varnish is a -gallon China-wood, oil-phenol-formaldehyde varnish prepared in a conventional manner.
  • the composition may be conveniently prepared by charging the ingredients into a ball mill and 5 dispersing the Surfex and titanium dioxide in the varnish'vehicle in the usual manner. If desired or convenient a roller mill, stone mill or other suitable so-called grinding equipment may be used.
  • This composition is applied to a suitable wall board base by means of a suitable doctor knife.
  • a spring steel knife approximately 0.02 inch in thickness set at an angle of approximately 10 to the flow of the board and at an angle of approximately to the perpendicular with the boards smoothly driven under the knife by a suitable arrangement of rollers has been found to be a suitable and convenient means of applying the composition.
  • the wall boards used are normally 4 feet by 8 feet in size and may be of various types a highly compressed board with relatively smooth surfaces being a commonly used type.
  • the composition applied as above gives an excellent filling of the surface, which issatisfactorily smooth. Whil a single knifing coat yields a satisfactory finished product, a double coating yields preferred results.
  • the coating is baked at approximately 225 Fffor approximately 1 hour or it may be air dried if desired.
  • Various arrangements may be used for the baking operations, a convenient means being to place the coated boards suitably separated on a'truck or stand and then plac the truck or stand in anindirectly heated 55 l f -#111 101 Variations are well known to those skilled in the art and modifications may be made without departing from the spirit or scope of the invention since they do not per se form a part of the present invention.
  • the knife coated boards are next scored by means of suitable cutters usually set 4 inches apart, the scoring being in both directions of the board.
  • the purpose of the score marks is to simulate the appearance of a wall actually covered by ceramic tile individually set in a cement and spaced from each other by cement lines located below the plane of the top of the tile.
  • Various types of scoring particularly with respect to theshoulder or edge of the score may be used as e. g. sharp or angular, curved or bevelled edge, the latter being preferred. 1
  • Composition B-Non-sanding primer Parts Titanium dioxide pigment dispersed in alkyd resin 68.0 43% dehydrated castor oil modified glycerol phthalate (60% solids) 14.6 6 gallon linseed oil-phenol formaldehyde resin varnish 6.5 Manganese naphthenate drier 0.5 Cobalt naphthenate drier 1.0 Hydrocarbon solvent 9.4
  • the titanium dioxide pigment dispersion is prepared as i'ollows:
  • Titanium dioxide pigment 71.5 43% soya bean oil modified glycerol phthalate (45% solids) 21.8 Hydrocarbon solvent 6.7
  • ingredients being suitably mixed, to disperse Parts the titanium dioxide pigment, in aball or pebble mill.
  • the manganese and cobalt naphthenate driers was found to be 20 pounds with an air pressure Other pressures may be used. r
  • the primer coating is then baked as previously described for one hour at 225 F.
  • the baked primer coated surface was then spray coated with the following Composition C.
  • composition o-rman or topcoat Mill base Parts Titanium dioxide pigment 73.1 Urea-formaldehyde-butanol resin solutlon (60% solids) 3.7
  • the pigment is suitably dispersed in the vehicle together with the other ingredients in a ball or pebble mill or by other convenient means.
  • composition may be conveniently prepared by suitably mixing the ingredients in any conventional manner or by other means known to those skilled in the art of preparing such compositions.
  • a satisfactory thickness of coating applied has been found to be between 1.5 and 2.0 mils. Suitable fiuid pressures and air pressure in applying this coating are as previously described.
  • the coated board is then baked for approximately one hour at approximately 225 F. and the score marks striped with a suitable air drying oil-modified alkyd resin enamel, usually of a contrasting color, Other enamels may be used if desired. After the striping enamel has dried the wall tile board is ready for use.
  • the finished product is a smooth, hard surfaced product, in every way resembling the more costly ceramic tile which it simulates to a remarkable degree.
  • the surface is waterproof, grease, soap and alkali resistant, easily cleanable and is also highly resistant to steam and prolonged exposure to conditions of high humidity.
  • additional knife coating or surfacing compositions made with other film-forming vehicles may be used. Examples of such are as follows:
  • Titanium dioxide pigment 7.4 52% soya bean modified glycerol phthalate (55% 'solids) 22.5
  • Knife coating or surfacing composition Parts Surface treated CaCO; 66.7 Titanium dioxide pigment 7.4 Amberol varnish solids) 20.8 5.1
  • the Amberol varnish used in this composition is a 5 gallon rosin modified phenol-formaldehyde resin-linseed oil varnish which is prepared in the conventional manner or preparing such varnishes.
  • a smooth tile-like product depends largely upon the specific type of surfacing composition used which because of its superior filling properties resulting in a smooth surface allows the use of nonsanding primers as are ordinarily used on metal substrate.
  • This surfacing composition is characterized by (1) the specific filler used, (2) ratio of vehicle to filler and pigment and (3) the hydrocarbon solvent used viz. mineral spirits or material of comparable type.
  • the specific filler for this composition has been previously described.
  • the commonly used calcium carbonate filler or' whiting is not satisfactory as might be expected nor are the other commonly used fillers satisfactory.
  • the preferred ratio of filler plus pigment to the non-volatile components of the vehicle is approximately 6:1, it may range between 5:1 and 9:1. Below a ratio of 5:1 is not satisfactory and above a ratio of 9:1 working difficulties are introduced and the economies are affected.
  • finishing composition may be applied directly to the surfacing composition coat without the use of an intermediate primer coating.
  • a smooth, high gloss finish is obtained with the desirable properties previously described but to a somewhat lesser degree.
  • the product as described herein is applicable for use in bathrooms, shower stalls, store fronts, kitchen walls, refrigerator cabinets, kitchen cabinets, etc. Because of the desirable initial and service properties possessed by the product, many other uses will be readily suggested to those familiar with the general needs of such a product.
  • the herein described invention presents a marked advance in the art of wall board tile manufacture with particular respect to economy of manufacture. There is not only a practical elimination of the extensive sanding and bufiing required in the present state of the art, but two or three coatings produce a first quality product which is uniformly reproducible in contrast to five or six now commonly used. The product further possesses markedly improved, service with respect to moisture, grease, soap, alkali and mar resistance. Other advantages will be readily apparent to those familiar with the manufacture of wall board tile.
  • an imitation of ceramic tile comprising a pressed wood fiber board base having applied thereto a composition comprising approximately 66 parts of whiting which has been subjected to severe attrition in the presenceof rosin, about 7.4 parts of titanium dioxide, about parts of a China-wood oil-modified phenol-formaldehyde varnish, a priming coat comprising a pigment and a castoroil modified glycerol phthalate resin and a linseed oil phenol-formaldehyde resin and a surface enamel containing a urea-formaldehydebutanol resin and a dehydrated castor oil-modified glycerol phthalate resin.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Paints Or Removers (AREA)

Description

Patented Dec. 16, 1947 UNITED STATES PATENT OFFICE conrnn 'WALL ma Elbert R. Gilbert, Hamilton Square, N. 1., as-
signor to E. I. du Pont 'de Nemours & Company, Wilmington, Del., a corporation of Delaware No Drawing. Application August 7,1942, Serial l lo. 454,003
1 Claim.
such as sheet metal, a suitable paint composition either in single or multiple colors. For special decorative effects or designs the sheet metal was often embossed before the paint composition was applied. Later develo ments included the manufacture of a product which more nearly simulated ceramic tile in appearance and further the use .of various types of pressed fibrous base material or substrate. With the commercial development of improved coating compositions such as those of a synthetic resin or semi-synthetic resin type wall board tile of improved appearance and service life was obtained. However,the manufacture of wall board tile with such compositions involved a complicated system of coating and the results were not uniformly reproducible. The extended use of wall board tile having a satisfactory appearance and service life is highly desirable principally because of ease of installation and general economic features involve'd.
This invention has as the principal object the provision of compositions and a coating system for applying such compositions to produce wall board tile.
Another object is the provision of wall tile board having improved gloss and having a harder, tougher and highly mar resistant surface.
St'iil'another object is the provision of wall board tile having a surface which is highly resistant to conditions of high humidity, to soap and soapy materials and to grease.
A further object is the provision of such wall board tile with a minimum number of coatings which eliminates extensive sanding and buffing operations and results in ready production of a first quality product.
Other objects will appear hereinafter as the description of the invention proceeds.
These objects are accomplished in the present invention by the application to a suitable substrate as wall board a knife coat of surfacer, a spray coat of primer composition and a spray i'opcoat or finishing composition, the surfacer compositions being of a new and improved type as hereinafter described.
The invention will be more fully understood by the following examples which are given by way of illustration and not by limitation except insofar as defined in the appended claim. The parts ar by weight.
5 Exam I Composition A-Knife coating com osition or surfacing composition Parts Surface treated whiting 1 66.0 Titanium dioxide pigment 7.4 China-wood oil varnish (60% solids) 20.0 Mineral spirits 6.6
This material may be prepared in accordance with (U. S. Patent 2,034,797. The term is intended to include the usual fillers, such as whiting, barytes or similar alkaline earth carbonates, magnesium silicate, and the like which have been subjected to severe attrition in the presence of an anti-compactant and lnterbonding agent, such as rosin and stearic acid as set forth in the patent referred to.
The China-wood oil varnish is a -gallon China-wood, oil-phenol-formaldehyde varnish prepared in a conventional manner.
The composition may be conveniently prepared by charging the ingredients into a ball mill and 5 dispersing the Surfex and titanium dioxide in the varnish'vehicle in the usual manner. If desired or convenient a roller mill, stone mill or other suitable so-called grinding equipment may be used.
This composition is applied to a suitable wall board base by means of a suitable doctor knife. A spring steel knife approximately 0.02 inch in thickness set at an angle of approximately 10 to the flow of the board and at an angle of approximately to the perpendicular with the boards smoothly driven under the knife by a suitable arrangement of rollers has been found to be a suitable and convenient means of applying the composition. The wall boards used are normally 4 feet by 8 feet in size and may be of various types a highly compressed board with relatively smooth surfaces being a commonly used type. The composition applied as above gives an excellent filling of the surface, which issatisfactorily smooth. Whil a single knifing coat yields a satisfactory finished product, a double coating yields preferred results. After the application of the surfacing composition, the coating is baked at approximately 225 Fffor approximately 1 hour or it may be air dried if desired. Various arrangements may be used for the baking operations, a convenient means being to place the coated boards suitably separated on a'truck or stand and then plac the truck or stand in anindirectly heated 55 l f -#111 101 Variations are well known to those skilled in the art and modifications may be made without departing from the spirit or scope of the invention since they do not per se form a part of the present invention.
While the viscosity or consistency of compositions prepared as described above is usually satisfactory, adjustments therein may be made by the further addition of solvent or thinner.
The knife coated boards are next scored by means of suitable cutters usually set 4 inches apart, the scoring being in both directions of the board. The purpose of the score marks, after being striped with contrasting colored composition as hereinafter described, is to simulate the appearance of a wall actually covered by ceramic tile individually set in a cement and spaced from each other by cement lines located below the plane of the top of the tile. Various types of scoring particularly with respect to theshoulder or edge of the score may be used as e. g. sharp or angular, curved or bevelled edge, the latter being preferred. 1
Composition B-Non-sanding primer Parts Titanium dioxide pigment dispersed in alkyd resin 68.0 43% dehydrated castor oil modified glycerol phthalate (60% solids) 14.6 6 gallon linseed oil-phenol formaldehyde resin varnish 6.5 Manganese naphthenate drier 0.5 Cobalt naphthenate drier 1.0 Hydrocarbon solvent 9.4
The titanium dioxide pigment dispersion is prepared as i'ollows:
Titanium dioxide pigment 71.5 43% soya bean oil modified glycerol phthalate (45% solids) 21.8 Hydrocarbon solvent 6.7
the ingredients being suitably mixed, to disperse Parts the titanium dioxide pigment, in aball or pebble mill.
The manganese and cobalt naphthenate driers was found to be 20 pounds with an air pressure Other pressures may be used. r
of 85 pounds. variations being governed by the viscosity of the composition and other conditions and also by the skill of the operator. Mechanical spray equip ment may also be used, such equipment being particularly adaptable in straight line production.
The primer coating is then baked as previously described for one hour at 225 F.
The baked primer coated surface was then spray coated with the following Composition C.
Composition o-rman or topcoat Mill base: Parts Titanium dioxide pigment 73.1 Urea-formaldehyde-butanol resin solutlon (60% solids) 3.7
43% dehydrated castor oil modified glycwere solutions in hydrocarbon solvent, the forerol Phfhfllflfp 12.1 N-butanol 7.4
naphtha '=I==:r::r:
The pigment is suitably dispersed in the vehicle together with the other ingredients in a ball or pebble mill or by other convenient means.
Enamel: Parts Mill base 24.5 43% dehydrated castor oil modified glycerol phthalate 40.0 Urea-formaldehyde-butyl alcohol resin (60% solids) 16.7 Melamine-formaldehyde-butyl alcohol resin 9.4 Xylol 9.4
This composition may be conveniently prepared by suitably mixing the ingredients in any conventional manner or by other means known to those skilled in the art of preparing such compositions.
A satisfactory thickness of coating applied has been found to be between 1.5 and 2.0 mils. Suitable fiuid pressures and air pressure in applying this coating are as previously described.
The coated board is then baked for approximately one hour at approximately 225 F. and the score marks striped with a suitable air drying oil-modified alkyd resin enamel, usually of a contrasting color, Other enamels may be used if desired. After the striping enamel has dried the wall tile board is ready for use.
The finished product is a smooth, hard surfaced product, in every way resembling the more costly ceramic tile which it simulates to a remarkable degree. The surface is waterproof, grease, soap and alkali resistant, easily cleanable and is also highly resistant to steam and prolonged exposure to conditions of high humidity.
Using the system of three coatings as described above, additional knife coating or surfacing compositions made with other film-forming vehicles may be used. Examples of such are as follows:
Examma II Knife coating or surfacing composition Parts Surface treated whiting 66.7
Titanium dioxide pigment 7.4 52% soya bean modified glycerol phthalate (55% 'solids) 22.5
Mineral spirits 3.4
Exmnr: HI
Knife coating or surfacing composition Parts Surface treated CaCO; 66.7 Titanium dioxide pigment 7.4 Amberol varnish solids) 20.8 5.1
Mineral spirits The Amberol varnish used in this composition is a 5 gallon rosin modified phenol-formaldehyde resin-linseed oil varnish which is prepared in the conventional manner or preparing such varnishes.
Urea-formaldehyde-butyl alcohol resin (60% solids) 20.0 Mineral pir 7.8
In addition to the vehicles for the knife coating or surfacing .compositions given in the examples,
- other vehicles may be used, the particular selection of which will be apparent to those skilled in the art.
It will be apparent from the above that a smooth tile-like product depends largely upon the specific type of surfacing composition used which because of its superior filling properties resulting in a smooth surface allows the use of nonsanding primers as are ordinarily used on metal substrate. This surfacing composition is characterized by (1) the specific filler used, (2) ratio of vehicle to filler and pigment and (3) the hydrocarbon solvent used viz. mineral spirits or material of comparable type. The specific filler for this composition has been previously described. In the present invention the commonly used calcium carbonate filler or' whiting is not satisfactory as might be expected nor are the other commonly used fillers satisfactory. While the preferred ratio of filler plus pigment to the non-volatile components of the vehicle is approximately 6:1, it may range between 5:1 and 9:1. Below a ratio of 5:1 is not satisfactory and above a ratio of 9:1 working difficulties are introduced and the economies are affected.
Where optimum quality is not required or desired and the costfactor is of prime consideration the finishing composition may be applied directly to the surfacing composition coat without the use of an intermediate primer coating. A smooth, high gloss finish is obtained with the desirable properties previously described but to a somewhat lesser degree.
The product as described herein is applicable for use in bathrooms, shower stalls, store fronts, kitchen walls, refrigerator cabinets, kitchen cabinets, etc. Because of the desirable initial and service properties possessed by the product, many other uses will be readily suggested to those familiar with the general needs of such a product.
The herein described inventionpresents a marked advance in the art of wall board tile manufacture with particular respect to economy of manufacture. There is not only a practical elimination of the extensive sanding and bufiing required in the present state of the art, but two or three coatings produce a first quality product which is uniformly reproducible in contrast to five or six now commonly used. The product further possesses markedly improved, service with respect to moisture, grease, soap, alkali and mar resistance. Other advantages will be readily apparent to those familiar with the manufacture of wall board tile.
It is apparent that many widely different embodiments of this invention may be made without departing from the spirit and scope thereof,
and therefore, it is not intended to be limited.
except as indicated in the appended claim.
I claim:
As a new article of manufacture, an imitation of ceramic tile comprising a pressed wood fiber board base having applied thereto a composition comprising approximately 66 parts of whiting which has been subjected to severe attrition in the presenceof rosin, about 7.4 parts of titanium dioxide, about parts of a China-wood oil-modified phenol-formaldehyde varnish, a priming coat comprising a pigment and a castoroil modified glycerol phthalate resin and a linseed oil phenol-formaldehyde resin and a surface enamel containing a urea-formaldehydebutanol resin and a dehydrated castor oil-modified glycerol phthalate resin.
ELBERT R. GILBERT.
REFERENCES CITED 0 The ,following references are of record in the file of this patent:
UNITED STATES PATENTS OTHER REFERENCES Mattiello, Protective and Decorative Coatings, vol. 1, page 214 (1941).
US45400342 1942-08-07 1942-08-07 Coated wall tile Expired - Lifetime US2432747A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516254A (en) * 1947-06-06 1950-07-25 Johns Manville Method of embossing structural panels
US2826508A (en) * 1956-02-06 1958-03-11 Decker Gertrude Giles Porcelain repairing method and composition
US4579767A (en) * 1983-08-30 1986-04-01 Abitibi-Price Corporation Simulated ceramic tile
US4581255A (en) * 1983-08-30 1986-04-08 Abitibi-Price Corporation Method of making simulated ceramic tile

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1606735A (en) * 1926-04-21 1926-11-09 Bird & Son Flexible floor covering and process of making the same
US1912372A (en) * 1929-06-12 1933-06-06 Du Pont Method of coating and article produced thereby
US2008063A (en) * 1931-10-13 1935-07-16 Tylac Company Breaker strip
US2034797A (en) * 1931-11-21 1936-03-24 Pure Calcium Products Company Treatment of whiting and the like
US2292468A (en) * 1939-11-13 1942-08-11 Du Pont Finishing composition

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1606735A (en) * 1926-04-21 1926-11-09 Bird & Son Flexible floor covering and process of making the same
US1912372A (en) * 1929-06-12 1933-06-06 Du Pont Method of coating and article produced thereby
US2008063A (en) * 1931-10-13 1935-07-16 Tylac Company Breaker strip
US2034797A (en) * 1931-11-21 1936-03-24 Pure Calcium Products Company Treatment of whiting and the like
US2292468A (en) * 1939-11-13 1942-08-11 Du Pont Finishing composition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516254A (en) * 1947-06-06 1950-07-25 Johns Manville Method of embossing structural panels
US2826508A (en) * 1956-02-06 1958-03-11 Decker Gertrude Giles Porcelain repairing method and composition
US4579767A (en) * 1983-08-30 1986-04-01 Abitibi-Price Corporation Simulated ceramic tile
US4581255A (en) * 1983-08-30 1986-04-08 Abitibi-Price Corporation Method of making simulated ceramic tile

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