US4009136A — Multicolor coating compositions

Claim 1

Independent Claim 81 words

A process for the preparation of a sprayable, brushable, and rollable multicolor coating composition consisting essentially of the steps of a) forming a viscous solution of a pigmented polyvinyl acetal resin dissolved in an organic solvent, and b) adding one or more of said solutions with controlled agitation to an aqueous polymer latex, whereby solvent migration from the mix to the latex causes an increase in viscosity of the mix thereby forming pigmented shear resistant droplets or globules in the latex.

Claim 2

Dependent Claim 81 words

A process for the preparation of a sprayable, brushable, and rollable multicolor coating composition consisting essentially of the steps of a) forming a viscous solution of a pigmented polyvinyl acetal resin dissolved in an organic solvent, and b) adding one or more of said solutions with controlled agitation to an aqueous polymer latex, whereby solvent migration from the mix to the latex causes an increase in viscosity of the mix thereby forming pigmented shear resistant droplets or globules in the latex.

Claim 3

Dependent Claim 40 words

The process of claim 1 where the latex forms a background paint in which the pigmented droplets or globules are dispersed, and which itself is pigmented to yield a composition having one or more different colors on a colored base.

Claim 4

Dependent Claim 16 words

The process of claim 1 in which the polyvinyl acetal resin is a polyvinyl butyral resin.

Claim 5

Dependent Claim 35 words

The process of claim 3 in which the polyvinyl butyral resin has a weight average molecular weight preferably between 100,000 and 300,000 and is in a solution having a viscosity between 30 and 100 poises.

Claim 6

Dependent Claim 37 words

The process of claim 3 in which the viscosity of the polyvinyl butyral resin solution is between 5 and 500 poises, and the polyvinyl butyral resin has a weight average molecular weight of between 30,000 and 1,000,000.

Claim 7

Dependent Claim 59 words

The process of claim 1 in which an oil-based pigment grind containing a polymer or a copolymer of at least one of the esters selected from the group consisting of acrylic acid esters and methacrylic acid esters optionally with up to 50% or more other olefinically unsaturated addition polymerizable comonomers is used to pigment the polyvinyl acetal resin solution.

Claim 8

Dependent Claim 19 words

The process of claim 1 in which the aqueous polymer latex is a polymer emulsion produced by addition polymerization.

Claim 9

Dependent Claim 39 words

The process of claim 1 in which the organic solvent is a substantially water-insoluble, low volatility member selected from the group consisting of esters of organic and inorganic acids, ethers and polyethers, mono and polyhydric alcohols, and aromatic hydrocarbons.

Claim 10

Dependent Claim 147 words

A process for the preparation of a multicolor coating composition comprising the step of (a) forming a solution of a polyvinyl butyral resin having a weight average molecular weight between 30,000 and 1,000,000, in an organic solvent, said solution having a viscosity between 5 and 500 poises, (b) mixing said resin solution with a pigment ground in a medium comprising a solvent and a polymer or copolymer of at least one of the esters selected from the group consisting of acrylic acid esters, and methacrylic acid esters, (c) adding one or more of said mixtures to an aqueous latex based paint while controlling the agitation to effect a coarse dispersion of the pigmented polyvinyl butyral solution in the latex based paint thereby forming a composition which is suited to application to solid surfaces by brushing, rolling or spraying to produce a coating with a spotted color effect.

Claim 11

Dependent Claim 147 words

A process for the preparation of a multicolor coating composition comprising the step of (a) forming a solution of a polyvinyl butyral resin having a weight average molecular weight between 30,000 and 1,000,000, in an organic solvent, said solution having a viscosity between 5 and 500 poises, (b) mixing said resin solution with a pigment ground in a medium comprising a solvent and a polymer or copolymer of at least one of the esters selected from the group consisting of acrylic acid esters, and methacrylic acid esters, (c) adding one or more of said mixtures to an aqueous latex based paint while controlling the agitation to effect a coarse dispersion of the pigmented polyvinyl butyral solution in the latex based paint thereby forming a composition which is suited to application to solid surfaces by brushing, rolling or spraying to produce a coating with a spotted color effect.

Claim 12

Dependent Claim 9 words

The composition prepared by the process of claim 9.

Claim 13

Dependent Claim 167 words

A process for the preparation of a multicolor coating composition comprising the steps of (a) forming a solution of about 10 parts polyvinyl butyral resin having a weight average molecular weight between 180,000 and 270,000 in about ninety parts by weight of tributyl phosphate, said solution having a viscosity between 30 and 100 poises (b) mixing said resin solution with a pigment grind containing about seven parts dry ground colorant, fifty parts of a copolymer of acrylic acid esters or methacrylic acid esters, up to about 10% of which esters are N-substituted amino alkyl acrylate or methacrylate, having a glass temperature of about 82° C. and about fourty-three parts of xylene, (c) increasing the viscosity of said mix by adding it to a colored aqueous latex paint comprising an emulsion polymer of butyl acrylate, ethyl acrylate, methyl methacrylate and methacrylic acid to thereby form a dispersion of pigmented resin droplets or globules in a latex paint suited to application to solid surfaces by brushing, rolling or spraying.

Claim 14

Dependent Claim 167 words

A process for the preparation of a multicolor coating composition comprising the steps of (a) forming a solution of about 10 parts polyvinyl butyral resin having a weight average molecular weight between 180,000 and 270,000 in about ninety parts by weight of tributyl phosphate, said solution having a viscosity between 30 and 100 poises (b) mixing said resin solution with a pigment grind containing about seven parts dry ground colorant, fifty parts of a copolymer of acrylic acid esters or methacrylic acid esters, up to about 10% of which esters are N-substituted amino alkyl acrylate or methacrylate, having a glass temperature of about 82° C. and about fourty-three parts of xylene, (c) increasing the viscosity of said mix by adding it to a colored aqueous latex paint comprising an emulsion polymer of butyl acrylate, ethyl acrylate, methyl methacrylate and methacrylic acid to thereby form a dispersion of pigmented resin droplets or globules in a latex paint suited to application to solid surfaces by brushing, rolling or spraying.

Claim 15

Dependent Claim 9 words

The composition prepared by the process of claim 11.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1980-02-22	1980-08-23	1981-02-22	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1984-02-22	1984-08-23	1985-02-22	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1988-02-22	1988-08-23	1989-02-22	$7700.00	Window Closed / Lapsed

Multicolor coating compositions

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