EP0178096A2
Expired / Lapsed
EP
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Improved process for matching color of paint to a colored surface
Assignee: EIDP Inc
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Filing: 1985-09-26
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Granted: —
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Expires: 2005-09-26
Abstract
Abstract An improved process for matching the color characteristics of a paint containing film forming binder, a liquid carrier, colored pigments and flake pigments to the color characteristics of a surface layer that contains flake pigments; the improvement comprises the following:adding to the paint a dispersion comprising a liquid carrier, a dispersing agent and transparent or semitransparent extender pigments or rigid or semirigid organic particles, particularly preferred are hollow glass spheres, in an amount sufficient to match the color characteristics of the surface layer.
Inventors
- 👤 Renee Jeanne Kelly
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 14:01
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/06; B44; B44D; B44D3/00; B44D3/003; C; C09; C09D; C09D7/00
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
76 words
An improved process for matching the color characteristics of a paint containing film forming binder, a liquid carrier, colored pigments and flake pigments to the color characteristics of a surface layer that contains flake pigments: wherein the improvement comprises adding to the paint a dispersion comprising a liquid carrier. a dispersing agent and transparent or semitransparent extender pigment or rigid inert organic particles in an amount sufficient to match the color characteristics of the surface layer.
Claim 2
Dependent Claim
76 words
An improved process for matching the color characteristics of a paint containing film forming binder, a liquid carrier, colored pigments and flake pigments to the color characteristics of a surface layer that contains flake pigments: wherein the improvement comprises adding to the paint a dispersion comprising a liquid carrier. a dispersing agent and transparent or semitransparent extender pigment or rigid inert organic particles in an amount sufficient to match the color characteristics of the surface layer.
Claim 3
Dependent Claim
14 words
The process of claim 1 in which the flake pigments are metallic flake pigments.
Claim 4
Dependent Claim
17 words
The process of claim 2 in which the metallic flake pigments are aluminum flake. 2, or 3
Claim 5
Dependent Claim
30 words
The process of claim 1,/in which the extender pigments are selected from the group consisting of barytes, crystalline silica, aluminum silicate, hollow glass spheres, solid glass spheres or mixtures thereof.
Claim 6
Dependent Claim
10 words
The process of claim 1 containing rigid inert organic particles.
Claim 7
Dependent Claim
29 words
The process of claim 5 in which the rigid inert organic particles are selected from the group consisting of polypropylene, polyethylene and polystyrene particles. any one of 1 to
Claim 8
Dependent Claim
18 words
The process of/claims/4 in which the extender pigments are hollow glass spheres having a diameter of 0.1-50 microns.
Claim 9
Dependent Claim
21 words
0 . The process of any one of claims 1 to 7 in which the dispersing agent comprises an acrylic resin.
Claim 10
Dependent Claim
17 words
The process of claim 8 in which the dispersing agent comprises an acrylic vinyl oxazoline ester polymer.
Claim 11
Dependent Claim
38 words
The process of claim 9 in which the acrylic vinyl oxazoline ester polymer consists essentially of an alkyl methacrylate, alkyl acrylate, hydroxy alkyl acrylate or methacrylate. alkylamino alkyl acrylate and vinyl oxazoline ester of drying oil fatty acids.
Claim 12
Dependent Claim
76 words
The process of claim 1 in which the flake pigments are aluminum flake, the extender pigments are hollow glass spheres having a diameter of 0.1-50 microns, the liquid carrier is an organic solvent and the dispersing agent comprises an acrylic vinyl oxazoline ester polymer consisting of an alkyl methacrylate, an alkyl acrylate, hydroxy alkyl acrylate or methacrylate, an alkyl amino alkyl acrylate and vinyl oxazoline ester of drying oil fatty acids. any one of to 11
Claim 13
Dependent Claim
54 words
The process of/claims1/in which color values at three angles are measured with an absolute spectrophotometer and the flop index value are determined for the surface layer and the same values for the paint are measured and necessary adjustments made by adding the dispersion to the paint to match the values of the surface layer.
Claim 14
Dependent Claim
35 words
any one of to 12 13. The process of/claimsl/in which the binder of the paint comprises a mixture of an acrylic polymer containing reactive hydroxyl groups and a polyisocyanate. any one of to 1 2
Claim 15
Dependent Claim
13 words
The process of/claims1/in which the binder of the paint comprises an alkyd resin.
Claim 16
Dependent Claim
27 words
The process of any one of claims 1 to 12 in which the binder of the paint comprises a blend of an alkyd resin and a polyisocyanate.
Claim 17
Dependent Claim
27 words
16 . The process of any one of claims1 to 12 in which the binder of the paint comprises nitrocellulose having a viscosity of about 1/2-6 seconds.
Claim 18
Dependent Claim
25 words
any one of to 12 17. The process of/claimsl/in which the binder of the paint comprises an acrylic polymer. cellulose acetate butyrate and a plasticizer.
Claim 19
Dependent Claim
28 words
The process of claim 17 in which the acrylic polymer comprises a polymer containing an acrylic segment and drying oil constituents and optionally contains an iminated acrylic polymer.
Claim 20
Dependent Claim
56 words
The process of any one of claims1 to 12 in which the binder of the paint comprises an acrylic polymer having acrylic segments and drying oil constituents, cellulose acetate butyrate, plasticizer. an iminated acrylic polymer, an acrylic polymer of an alkyl methacrylate and an alkyl acrylate and ethylene vinyl acetate copolymer. any one of to 12
Claim 21
Dependent Claim
20 words
The process of/claimsl/in which the binder of the paint comprises an acrylic vinyl oxazoline ester polymer and an alkyd resin.
Claim 22
Dependent Claim
22 words
The process of claim 20 in which the binder of the paint contains a polyisocyanate crosslinking agent. any one of to 12
Claim 23
Dependent Claim
26 words
The process of/claimsl/in which the binder of the paint comprises an acrylic resin. a urethane resin and a melamine crosslinking agent or a polyisocyanate crosslinking agent.
Claim 24
Dependent Claim
32 words
The process of any one of claims1 to 12 in which the paint comprises an acrylic polymer containing reactive hydroxyl groups and a melamine crosslinking agent. any one of to 1 2
Claim 25
Dependent Claim
27 words
The process of/claimsl/in which the paint comprises an acrylic polymer containing reactive hydroxyl groups, a polyester resin and a melamine crosslinking agent or a polyisocyanate crosslinking agent.
Claim 26
Dependent Claim
32 words
The process of/claim s l/in which the surface layer comprises a color coat containing flake pigments and a clear coat layer in adherence to the color coat. any one of to 25
Claim 27
Dependent Claim
62 words
The process of/claimsl/in which flake particles in the paint upon drying orient differently from the flake particles in the surface layer caused by shrinkage characteristics of the paint thereby requiring the addition of extender pigments or rigid inert organic particles thereby altering the orientation of the particles in the paint sufficiently to match the color characteristics of the surface layer being painted.
Claim 28
Dependent Claim
38 words
A coating composition comprising an organic solvent, a film forming binder, colored pigments, flake pigments, dispersing agent of an acrylic vinyl oxazoline ester polymer and extender pigments consisting of hollow glass spheres having a diameter of 0.1-50 microns.
Claim 29
Dependent Claim
38 words
A coating composition comprising an organic solvent, a film forming binder, colored pigments, flake pigments, dispersing agent of an acrylic vinyl oxazoline ester polymer and extender pigments consisting of hollow glass spheres having a diameter of 0.1-50 microns.
Claim 30
Dependent Claim
22 words
A substrate comprising a layer containing a flake pigmented coating coated with a dried coalesced layer of the composition of claim 27.
Claim 31
Dependent Claim
19 words
The process of any one of Claims 1 to 26 in which the liquid carrier is an organic solvent.
References Cited (Backward Citations)
No citation records indexed.
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