US3719618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting,non-gelled hydroxyl functional coating compositions
Assignee: PPG Industries Inc
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Filing: 1971-06-21
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Granted: 1973-03-06
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Expires: 1991-06-21
Abstract
Abstract Hydroxyl functional polymers can be produced by employing monomers derived from 12-hydroxystearic acid and glycidyl acrylates or methacrylates and reacting said monomers with other unsaturated monomers, thus providing polymers that form suitable thermosetting compositions when the polymers are co-cured with various crosslinking agents or other resinous compositions.
Inventors
- 👤 J Makhlouf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:14
CPC Classifications
C; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C09D157/00; C08; C08L; C08L61/00; C08L61/20; C08L61/26; C08L61/28
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
132 words
A heat-hardening, non-gelled hydroxyl functional coating composition comprising: A. an interpolymer of: a. from about 4 to about 20 percent of a reaction product of 12-hydroxystearic acid and a glycidyl ester of a monoethylenically unsaturated carboxylic acid; b. from about 5 to about 20 PERCENT of a monoethylenically unsaturated ester of an organic or inorganic acid; c. from about 0.5 to about 3 percent of an alpha, beta-monoethylenically unsaturated carboxylic acid; and d. from about 55 to about 90 percent of one or more other alpha, beta-monoethylenically unsaturated monomers; and B. from about 5 to about 30 percent by weight, based on total weight of (A) and (B), of a crosslinking agent, selected from a member of the consisting of condensation products of an aldehyde and melamine or benzoguanamine, for said interpolymer.
Claim 2
Dependent Claim
132 words
A heat-hardening, non-gelled hydroxyl functional coating composition comprising: A. an interpolymer of: a. from about 4 to about 20 percent of a reaction product of 12-hydroxystearic acid and a glycidyl ester of a monoethylenically unsaturated carboxylic acid; b. from about 5 to about 20 PERCENT of a monoethylenically unsaturated ester of an organic or inorganic acid; c. from about 0.5 to about 3 percent of an alpha, beta-monoethylenically unsaturated carboxylic acid; and d. from about 55 to about 90 percent of one or more other alpha, beta-monoethylenically unsaturated monomers; and B. from about 5 to about 30 percent by weight, based on total weight of (A) and (B), of a crosslinking agent, selected from a member of the consisting of condensation products of an aldehyde and melamine or benzoguanamine, for said interpolymer.
Claim 3
Dependent Claim
22 words
A composition as in claim 1 wherein said reaction product is the reaction product of 12-hydroxystearic acid and glycidyl acrylate or methacrylate.
Claim 4
Dependent Claim
19 words
A composition as in claim 1 wherein the unsaturated esters are lower alkyl esters of acrylic and methacrylic acid.
Claim 5
Dependent Claim
34 words
A composition as in claim 3 wherein the lower alkyl ester is selected from a member of the class consisting of methyl acrylate, ethyl acrylate, butyl acrylate, ethyl methacrylate, methyl methacrylate, and butyl methacrylate.
Claim 6
Dependent Claim
17 words
A composition as in claim 1 wherein the alpha, beta-monethylenically unsaturated acid is acrylic or methacrylic acid.
Claim 7
Dependent Claim
29 words
A composition as in claim 1 wherein the alpha, beta-monethylenically unsaturated monomer is selected from a member of the class consisting of vinyl aromatic hydrocarbons, organic nitriles and amides.
Claim 8
Dependent Claim
26 words
A composition as in claim 6 wherein the alpha, beta-monethylenically unsaturated monomer is selected from a member of the class consisting of styrene, acrylamide and acrylonitrile.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |