US4532177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Base coat compositions for wet-on-wet applications, and articles coated therewith
Assignee: EATMAN KODAK COMPANY A CORP OF NJ
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Filing: 1984-07-30
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Granted: 1985-07-30
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Expires: 2004-07-30
Abstract
Abstract Base coat compositions comprise a film-forming resin component selected from one or a mixture of any of alkyd, polyester, acrylic and polyurethane resins, having blended therewith from 1.0 to 15.0% by weight of pigment and from 2.0% to 50.0% by weight of cellulose ester material having the following chemical characteristics: Solution viscosity, seconds-0.05-0.005 Acetyl, % by wt.-10.0-15.00 Propionyl, % by wt.-0.1-0.8 Butyryl, % by wt.-36.0-40.0 Free-Hydroxyl, % by wt.-1.0-2.0 The compositions when containing pigment such as metallic particles are particularly useful in wet-on-wet automotive finish applications, allowing minimal metallic particle reorientation upon the application thereto of polymeric top coats (particularly those containing solvent), and a considerable increase in solids content.
Inventors
- 👤 Ralph W. Mahar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:33
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C09D101/10; C09D101/14; C09D201/00; C09D5/00; C09D5/38; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/31504; Y10T428/31551; Y10T428/31554; Y10T428/31565; Y10T428/31573; Y10T428/31591; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31971
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
71 words
A base coat composition comprising a film-forming, curable resin component selected from one or a mixture of any of polyester, acrylic and polyurethane resins, having blended therewith from 1.0 to 15.0% by weight of pigment and from 2.0% to 50.0% by weight of cellulose ester material having the following chemical characteristics: Solution Viscosity, seconds--0.05-0.005 Acetyl, % by wt.--10.0-15.0 Propionyl, % by wt.--0.1-0.8 Butyryl, % by wt. 36.0--40.0 Free-Hydroxyl, % by wt.--1.0-2.0.
Claim 2
Dependent Claim
71 words
A base coat composition comprising a film-forming, curable resin component selected from one or a mixture of any of polyester, acrylic and polyurethane resins, having blended therewith from 1.0 to 15.0% by weight of pigment and from 2.0% to 50.0% by weight of cellulose ester material having the following chemical characteristics: Solution Viscosity, seconds--0.05-0.005 Acetyl, % by wt.--10.0-15.0 Propionyl, % by wt.--0.1-0.8 Butyryl, % by wt. 36.0--40.0 Free-Hydroxyl, % by wt.--1.0-2.0.
Claim 3
Dependent Claim
39 words
The composition of claim 1 wherein the resin component is prepared from at least one of neopentyl glycol, trimethylolpropane, 2,2,4-trimethyl-1,3-pentanediol, or ethylene glycol, and at least one of isophthalic acid, adipic acid, trimellitic anhydride, terephthalic acid, or 1,4-dimethylcyclohexanedicarboxylic acid.
Claim 4
Dependent Claim
26 words
The composition of claim 2 containing from 2 to 10% by weight of a cross-linking agent, and from 2 to 20% by weight of aluminum flake.
Claim 5
Dependent Claim
66 words
The composition of claim 3 wherein the resin is prepared from neopentyl glycol, trimethylolpropane, 1,4-dimethylcyclohexanedicarboxylic acid, and isophthalic acid in a respective mole ratio of said reactants of 9-15/0.5-4.0/2.5-8.0/2.5-8.0, and the concentration of the cellulose ester material is from 4.0 to 20.0% by weight, and the composition has blended therewith from 50-70% by weight of polyethylene wax having a molecular weight of from 4,000 to 10,000.
Claim 6
Dependent Claim
22 words
The composition of any of claims 1-4 wherein the cellulose ester material has a solution viscosity of from 0.01 to 0.03 second.
Claim 7
Dependent Claim
50 words
A substrate having a multilayer coating composition adhered hereto, said composition comprising: A. a dried nonaqueous base film of the composition of any of claims 1-4; and B. a baked transparent coating composition deposited on said base film and comprising a film-forming material selected from polyester resins and polyurethane resins.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-29 | 1989-01-28 | 1989-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-29 | 1993-01-28 | 1993-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-29 | 1997-01-28 | 1997-07-30 | $7700.00 | Window Closed / Lapsed |