US3202527A - Method of finishing - Google Patents

Method of finishing Download PDF

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Publication number
US3202527A
US3202527A US202404A US20240462A US3202527A US 3202527 A US3202527 A US 3202527A US 202404 A US202404 A US 202404A US 20240462 A US20240462 A US 20240462A US 3202527 A US3202527 A US 3202527A
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United States
Prior art keywords
coating
enamel
lbs
texturing
pigment
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Expired - Lifetime
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US202404A
Inventor
Albert W Stevens
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Lilly Industries Inc
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Lilly Industries Coatings Inc
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Priority to US202404A priority Critical patent/US3202527A/en
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Publication of US3202527A publication Critical patent/US3202527A/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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B05D5/061—Special surface effect
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
    • 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
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/53—Base coat plus clear coat type
    • B05D7/532—Base coat plus clear coat type the two layers being cured or baked together, i.e. wet on wet

Definitions

  • the present invention relates to a method of finishing surfaces and finds a primary utility in the finishing or painting of metal surfaces.
  • one object of the present invention is to provide a method of finishing which produces a surface upon which scars and marks are relatively invisible as compared with standard enameled surfaces.
  • Still another object of the resent invention is to provide a method of finishing surfaces which produces a finish giving the optical illusion of changing colors when light is played on the surface at different angles or when the surface is viewed at different angles.
  • Still another object of the present invention is to provide a method of finishing surfaces which produces a smooth multi-colored effect.
  • Still another object of the present invention is to provide an improved method of finishing surfaces, particularly metal surfaces.
  • Still another object of the present invention is to provide a surface coating having a sense of homogeneity and an appearance similar to marble.
  • this invention provides a method of finishing surfaces whereby a metal or the like surface is coated with a conventional primary coating or layer of preferably standard baking enamel.
  • the surface preparation prior to the coating is conventional and may consist of phosphatizing, a primer coat or the like.
  • the surface may be ground or sanded or prepared in any other conventional manner to give a desired degree of smoothness.
  • the above mentioned coating of enamel is conveniently placed upon the surface by means of a spray gun of conventional nature.
  • the surface can be coated with the enamel by means of a paint brush or by any conventional or other coating method.
  • This texturing coating includes a solvent capable of dissolving the baking enamel and also includes a certain amount of pigmentation of difierent color than that of the primary coat.
  • the texturing coating includes constituents generally of the same type as the first or primary coat; however, the pigment preferably is present in greatly reduced proportions.
  • the texture coating pigment is present at approximately the concentration of the pigment in the conventional primary enamel coating.
  • the sputtering operation may be produced by means of a conventional spray gun such as, for example, the De Vilbiss #765 air spray gun with an FX tip manufactured by the The De Vilbiss Co. of Toledo, Ohio.
  • a conventional spray gun such as, for example, the De Vilbiss #765 air spray gun with an FX tip manufactured by the The De Vilbiss Co. of Toledo, Ohio.
  • the spray gun In producing a spatter, the spray gun is operated so that the atomizing operation is very ineflicient and produces globules or relatively large size. The spray gun is also operated so that the globules are very low in number whereby a spattering or sprinkling of the texturing coating upon the surface is produced.
  • the spattering is produced upon a Wet enamel surface so that the spatter coating partly dissolves the primary coating therebeneath. It should be understood that the spatter drops do not travel or merge substantially at their edges with the primary coating already in place but instead have Well defined borders or boundaries. If desired, one or more further texturing spatter coatings may be used of a different color or different type of pigment than the first texturing coating.
  • the surface is then placed within an oven and heated to sufiicient temperature to cause thermal setting of both the basic enamel and the texture coatings.
  • a single baking operation is used and that there is no baking done between the basic enamel coating and the texture coatings but only after the primary and all succeeding teXturing coatings have been made.
  • Such a procedure produces a smooth surface because of the fusing together of the primary enamel and the texturing coats so that any subsequent scars and marks are optically invisible and also produces a surface having differing colors depending on the angle of view.
  • Example 1 Prepare an alkyd baking enamel by mixing the following substances in a container:
  • a green texturing coating is prepared by placing the following in a roller mill:
  • the above described alkyd white baking enamel is sprayed upon a steel, aluminum or other surface in the conventional manner by a conventional spray gun. Promptly after spraying, the surface is spattered with the v above mentioned texturing coating using the above mengun is greatly reduced and includes large globules thus 7 effecting a spattering of the surface. , The surface is then baked for fifteen minutes at 300 F. producing a relatively smooth multi-colored surface. If desired, the gloss and fullness of the finish may be increased by an appropriate transparent coating.
  • Example 2 Prepare a blue vinyl-alkyd baking enamel including the following constituents:
  • thermosetting alkyd resin C-SSX Duraplex
  • toluol 10 lbs. rutile titanium dioxide
  • 1 1b. of organic pigment R-592-D Copper Maroon
  • lampblack The pigment is dispersed by mixing the above materials in a sand mill, ball mill or roller mill and the following materials are added to the materials in the mill:
  • a silver texturing coating is then prepared by the mixing of the following substances:
  • powdered aluminum pigment paste including:
  • Al powder non-leafing 66 parts by weight V.M. & P. naphtha, 33 parts by weight Stearic acid, 1 part by weight 4 oz. by volume of isopropyl acetate 4 oz. by volume toluol
  • a copper texturing coating is then preparedby mixing the following substances:
  • the above described blue vinyl-alkyd baking enamel is sprayed or otherwise applied to the metal surface being coated. Promptly after coating by the vinyl-alkyd enamel, the surface is spattered in the manner above described with the silver textu'ring coating and in rapid successiofi or simultaneously is spattered with the copper texturing coating.
  • the spattering operation may be performed in the manner described in Example 1.
  • the surface is then baked for 25 minutes at 225 F.
  • Example 3 V A white thermosetting acrylic enamel is prepared by mixing:
  • thermosetting acrylic resin (Interpol 17-1575)
  • the above material has its pigment dispersed by means of a roller mill or other suitable paint mill and then the following substances are added thereto:
  • thermosetting acrylic resin (Interpol 17-1575) 30 lbs. of butyl Cellosolve 88 lbs. xylol Conventional mixing produces 50 gallons of white thermosetting acrylic enamel.
  • a yellow texturing coating is then prepared by mixing the following substances:
  • thermosetting acrylic enamel is applied by spray or other means to a metal surface.
  • the above yellow texturing coating is spattered on thesurface.
  • either or both of the silver and copper texturing coatings set forth in Example 2 may be used as spatter coats. The spattering is accomplished in the manner described above in Example 1. The surface is then baked for five minutes at 450 F.
  • Example 4 Although this invention is most efiective when a baking enamel is used and when the baking process insures i a fusion between the baking enamel and the texturing coating, the invention may also be used with enamels which dry or cure at normal room temperatures of approximately 70 F. to 80F. In practicing the invention without baking, care should be taken to insure that the primary enamel coating remains wet and fluid sufi-lciently long to permit application of the texturing coating and fusion of the texturing coating into the primary enamel coating before drying of the primary coating takes place.
  • Coralair-dry enamel is prepared by placing the following materials in a sand mill, roller mill or the like and operating the mill to disperse the pigment:
  • a black texturing agent is prepared by mixing the fol lowing substances. 7
  • a method of finishing surfaces to produce a smooth multi-colored eliect consisting of:

Description

United States Patent Ofiice 3,2d252? Patented Aug. 24, 1965 3,202,527 lldETl'lOl) @F l. lNlSl-llll l l;
Albert W. Stevens, Indianapolis, Ind, assignor to Lilly Industrial Coatings, Inc., a corporation of Indiana N Drawing. Filed June id, 1962, Ser. No. 2ll2,4li4 1 Claim. (l. 117-45) The present invention relates to a method of finishing surfaces and finds a primary utility in the finishing or painting of metal surfaces.
It is well known to finish a metal surface by spraying it with a baking enamel and then heating or curing the surface in an oven. Such a procedure produces a smooth finish of constant coloring and texture. However, when such a surface is scratched or marred, the resultant marks are clearly visible and detract from the appearance of the finish. Consequently, one object of the present invention is to provide a method of finishing which produces a surface upon which scars and marks are relatively invisible as compared with standard enameled surfaces.
Still another object of the resent invention is to provide a method of finishing surfaces which produces a finish giving the optical illusion of changing colors when light is played on the surface at different angles or when the surface is viewed at different angles.
Still another object of the present invention is to provide a method of finishing surfaces which produces a smooth multi-colored effect.
Still another object of the present invention is to provide an improved method of finishing surfaces, particularly metal surfaces.
Still another object of the present invention is to provide a surface coating having a sense of homogeneity and an appearance similar to marble.
In fulfillment of the above and other objects, this invention provides a method of finishing surfaces whereby a metal or the like surface is coated with a conventional primary coating or layer of preferably standard baking enamel. The surface preparation prior to the coating is conventional and may consist of phosphatizing, a primer coat or the like. Also, the surface may be ground or sanded or prepared in any other conventional manner to give a desired degree of smoothness. The above mentioned coating of enamel is conveniently placed upon the surface by means of a spray gun of conventional nature. Alternatively, the surface can be coated with the enamel by means of a paint brush or by any conventional or other coating method.
Promptly and while the primary coat is still completely wet and uncured, the surface is spattered with a texturing coating. This texturing coating includes a solvent capable of dissolving the baking enamel and also includes a certain amount of pigmentation of difierent color than that of the primary coat. The texturing coating includes constituents generally of the same type as the first or primary coat; however, the pigment preferably is present in greatly reduced proportions. For example, in one preferred embodiment, the texture coating pigment is present at approximately the concentration of the pigment in the conventional primary enamel coating. Thus, when a drop or globule of the texturing coating strikes the surface with the primary coat thereon, the drop does not produce a solid opaque spot but instead produces a spot or design having uneven coloring and through which the primary coating is visible to various degrees.
The sputtering operation may be produced by means of a conventional spray gun such as, for example, the De Vilbiss #765 air spray gun with an FX tip manufactured by the The De Vilbiss Co. of Toledo, Ohio.
In producing a spatter, the spray gun is operated so that the atomizing operation is very ineflicient and produces globules or relatively large size. The spray gun is also operated so that the globules are very low in number whereby a spattering or sprinkling of the texturing coating upon the surface is produced.
As mentioned above, the spattering is produced upon a Wet enamel surface so that the spatter coating partly dissolves the primary coating therebeneath. It should be understood that the spatter drops do not travel or merge substantially at their edges with the primary coating already in place but instead have Well defined borders or boundaries. If desired, one or more further texturing spatter coatings may be used of a different color or different type of pigment than the first texturing coating.
The surface is then placed within an oven and heated to sufiicient temperature to cause thermal setting of both the basic enamel and the texture coatings. It should be emphasized that a single baking operation is used and that there is no baking done between the basic enamel coating and the texture coatings but only after the primary and all succeeding teXturing coatings have been made. Such a procedure produces a smooth surface because of the fusing together of the primary enamel and the texturing coats so that any subsequent scars and marks are optically invisible and also produces a surface having differing colors depending on the angle of view.
The invention is further illustrated by the following specific examples.
Example 1 Prepare an alkyd baking enamel by mixing the following substances in a container:
24 lbs. drying type alkyd resin (#2480 Aroplaz XB) 4 lbs. butyl Ca'rbitol 4 lbs. n-butanol 9 lbs. xylol 29 lbs. naphtha 142 lbs. titanium dioxide 39 lbs. coconut oil non-drying alkyd resin (Bcckasol P- Disperse the pigment in above material by means of a conventional sand mill, ball mill or roller mill and add the following:
128 lbs. coconut oil non-drying alkyd resin (Beckasol P- 5 /2 lbs. of Xylol 40 lbs. butylated urea formaldehyde resin (F240N Uformite) 36 lbs. melamine-formaldehyde resin (MM-57 Uformite) 44 lbs. mineral spirits Mixing of the above materials in the conventional mam ner provides 50 gallons of a conventional alkyd white baking enamel.
A green texturing coating is prepared by placing the following in a roller mill:
/3 gal. plasticizer alkyd resin (C-57 Duraplex) 1 lb. of phthalocyanine green pigment A; gal. Xylol The roller mill is operated to disperse the pigment. To these materials, there is added: gal. Xylol and mixing is completed to provide a green texturing coating.
The above described alkyd white baking enamel is sprayed upon a steel, aluminum or other surface in the conventional manner by a conventional spray gun. Promptly after spraying, the surface is spattered with the v above mentioned texturing coating using the above mengun is greatly reduced and includes large globules thus 7 effecting a spattering of the surface. ,The surface is then baked for fifteen minutes at 300 F. producing a relatively smooth multi-colored surface. If desired, the gloss and fullness of the finish may be increased by an appropriate transparent coating.
Example 2 Prepare a blue vinyl-alkyd baking enamel including the following constituents:
20 lbs. of thermosetting alkyd resin (C-SSX Duraplex) 28 lbs. toluol 10 lbs. rutile titanium dioxide 1 1b. of organic pigment (R-592-D Copper Maroon) /2 lbs. lampblack The pigment is dispersed by mixing the above materials in a sand mill, ball mill or roller mill and the following materials are added to the materials in the mill:
, Mixing of the above materials in the conventional manner provides 50 gallons of blue vinylsalkyd baking enamel.
A silver texturing coating is then prepared by the mixing of the following substances:
/8 oz. by weight of powdered aluminum pigment paste including:
Al powder non-leafing, 66 parts by weight V.M. & P. naphtha, 33 parts by weight Stearic acid, 1 part by weight 4 oz. by volume of isopropyl acetate 4 oz. by volume toluol A copper texturing coating is then preparedby mixing the following substances:
A3 oz. by weight powdered copper metal pigment (#903 XX Copper Lining) 4 oz. by volume isopropyl acetate 4 oz. by volume toluol v The above described blue vinyl-alkyd baking enamel is sprayed or otherwise applied to the metal surface being coated. Promptly after coating by the vinyl-alkyd enamel, the surface is spattered in the manner above described with the silver textu'ring coating and in rapid successiofi or simultaneously is spattered with the copper texturing coating. The spattering operation may be performed in the manner described in Example 1. The surface is then baked for 25 minutes at 225 F.
Example 3 V A white thermosetting acrylic enamel is prepared by mixing:
119 lbs. titanium dioxide 60 lbs. thermosetting acrylic resin (Interpol 17-1575) The above material has its pigment dispersed by means of a roller mill or other suitable paint mill and then the following substances are added thereto:
165 lbs. of thermosetting acrylic resin (Interpol 17-1575) 30 lbs. of butyl Cellosolve 88 lbs. xylol Conventional mixing produces 50 gallons of white thermosetting acrylic enamel.
A yellow texturing coating is then prepared by mixing the following substances:
1 lb. medium chrome yellow pigment (X-2541 C.P.
Medium Yellow) /3' lb. acrylic resin (Interpol 17-1575) /6 lb. xylol The pigment of the texturing coating is dispersed by means of a roller mill or other suitable device to which is added: 100 gal. of xylol;
Conventional mixing produces the tex-turing coating.
The above white thermosetting acrylic enamel is applied by spray or other means to a metal surface. As soon as possible thereafter, and before setting of the enamel, the above yellow texturing coating is spattered on thesurface. In place of the yellow texturing coating or in addition to the yellow texturing coating, either or both of the silver and copper texturing coatings set forth in Example 2 may be used as spatter coats. The spattering is accomplished in the manner described above in Example 1. The surface is then baked for five minutes at 450 F.
Example 4 Although this invention is most efiective when a baking enamel is used and when the baking process insures i a fusion between the baking enamel and the texturing coating, the invention may also be used with enamels which dry or cure at normal room temperatures of approximately 70 F. to 80F. In practicing the invention without baking, care should be taken to insure that the primary enamel coating remains wet and fluid sufi-lciently long to permit application of the texturing coating and fusion of the texturing coating into the primary enamel coating before drying of the primary coating takes place. Coralair-dry enamel is prepared by placing the following materials in a sand mill, roller mill or the like and operating the mill to disperse the pigment:
1.0 lbs. air dry alkyd resin (Chempol 13-1802) 13 lbs. toluol 40 lbs. titanium dioxide 1%. lbs. pigment (Molybdate Orange) After the pigment has been dispersed, the following substances are added to the materials in the mill for further mixing:
24 gal. air-dry alkyd resin (Chempol 13-1802) '17 gal. toluol 3 oz. by volume 6% solution of cobalt dissolved in naphthenic acid Theabove procedure yields 50 gallons of coral airdry enamel.
A black texturing agent is prepared by mixing the fol lowing substances. 7
25 gal. air-dry alkyd resin 20 gal. toluol 72 lbs. lampblack j The above material is dispersed on a roller mill and the following materials added to the mixture:
4 oz. by volume isopropyl alcohol 4 oz. by volume toluol It should he understood that the above examples are certainly not the only possible ways in which the invention can be practiced and that various modifications can be made Within the scope of the invention. For example, various solvents can be used alternatively to those above mentioned (benzene, isobutanol, acetone, high-flash naphtha butyl lactate) depending, inter alia, upon the desired evaporation rate as determined by the temperature, humidity and other conditions.
The invention claimed is:
A method of finishing surfaces to produce a smooth multi-colored eliect consisting of:
(a) coating said surface with a pigmented baking enamel (b) applying a texture coating to said surface While the enamel coating is still Wet, said texture coating comprising a plasticizer, a solvent for said enamel coating and a ditferent colored pigment than said enamel coating, said pigment being present in ap- References tilted by the Examiner UNITED STATES PATENTS 197,029 11/77 Gigrich 117-45 578,417 3/97 Niepraschlr 117-45 1,561,324 11/25 Guenot et al. 11745 2,078,291 4/ 37 Smedley 11745 OTHER REFERENCES Burrell: Organic Finishing, December 1955, p. 17.
RICHARD D. NEVIUS, Primary Examiner.
US202404A 1962-06-14 1962-06-14 Method of finishing Expired - Lifetime US3202527A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549407A (en) * 1968-02-29 1970-12-22 Du Pont Process for applying a textured decorative coating to a metal substrate and article thereof
US3655421A (en) * 1969-08-18 1972-04-11 Gen Tire & Rubber Co Method of forming patterns on substrate surfaces
US3931437A (en) * 1969-07-22 1976-01-06 Inmont Corporation Surface treatment of microporous material
US4029831A (en) * 1975-06-19 1977-06-14 Masonite Corporation Method of making a multi-gloss panel
US4946715A (en) * 1988-07-11 1990-08-07 Avera Ronald T Method for producing faux finishes on non-porous surfaces
EP0435236A1 (en) * 1989-12-29 1991-07-03 OECE Industrie Chimiche Spa Coating systems for providing surfaces with chromatic decorative effects in relief
US5084303A (en) * 1988-07-11 1992-01-28 Avera Ronald T Method for producing faux finishes on non-porous surfaces
US5113786A (en) * 1988-11-28 1992-05-19 Clark Moulding Co., Inc. Apparatus for producing an imitation stone finish
US5348766A (en) * 1993-01-05 1994-09-20 Elaine Latham Method for marbleizing an object by dipping the object into paint floating on borax-conditioned water

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US197029A (en) * 1877-11-13 Improvement in japanning wood
US578417A (en) * 1897-03-09 Method of ornamenting metal surfaces
US1561324A (en) * 1923-07-12 1925-11-10 Georges L Guenot Decorated surface and method of producing same
US2078291A (en) * 1934-02-14 1937-04-27 Glidden Co Composite novelty finish

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US197029A (en) * 1877-11-13 Improvement in japanning wood
US578417A (en) * 1897-03-09 Method of ornamenting metal surfaces
US1561324A (en) * 1923-07-12 1925-11-10 Georges L Guenot Decorated surface and method of producing same
US2078291A (en) * 1934-02-14 1937-04-27 Glidden Co Composite novelty finish

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549407A (en) * 1968-02-29 1970-12-22 Du Pont Process for applying a textured decorative coating to a metal substrate and article thereof
US3931437A (en) * 1969-07-22 1976-01-06 Inmont Corporation Surface treatment of microporous material
US3655421A (en) * 1969-08-18 1972-04-11 Gen Tire & Rubber Co Method of forming patterns on substrate surfaces
US4029831A (en) * 1975-06-19 1977-06-14 Masonite Corporation Method of making a multi-gloss panel
US4946715A (en) * 1988-07-11 1990-08-07 Avera Ronald T Method for producing faux finishes on non-porous surfaces
US5084303A (en) * 1988-07-11 1992-01-28 Avera Ronald T Method for producing faux finishes on non-porous surfaces
US5113786A (en) * 1988-11-28 1992-05-19 Clark Moulding Co., Inc. Apparatus for producing an imitation stone finish
EP0435236A1 (en) * 1989-12-29 1991-07-03 OECE Industrie Chimiche Spa Coating systems for providing surfaces with chromatic decorative effects in relief
US5348766A (en) * 1993-01-05 1994-09-20 Elaine Latham Method for marbleizing an object by dipping the object into paint floating on borax-conditioned water

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