US4405764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosettable polyester resin compositions containing caprolactone
Assignee: Valspar Corp
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Filing: 1982-12-30
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Granted: 1983-09-20
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Expires: 2002-12-30
Abstract
Abstract Thermosetting polyesters and their preparation comprising diol, triol, benzenedicarboxylic acid and, as an essential ingredient are disclosed, as well as coating compositions containing those polyesters with cross-linking agents such as aminoplast.
Inventors
- 👤 Michael A. Tobias
- 👤 Conrad L. Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:21
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/60; C09; C09D; C09D167/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
58 words
A thermosettable polyester resin composition comprising A. 25 to 40 weight percent of ethylene glycol, 1,2-propylene glycol, 1,3-butanediol, neopentyl glycol, 1,4-cyclohexanedimethanol, or mixtures thereof; B. 2 to 8 weight percent of glycerol, trimethylolethane, trimethylolpropane or mixtures thereof; C. 15 to 25 weight percent epsilon-caprolactone; and D. 40 to 50 weight percent of a benzenedicarboxylic acid or anhydride thereof.
Claim 2
Dependent Claim
58 words
A thermosettable polyester resin composition comprising A. 25 to 40 weight percent of ethylene glycol, 1,2-propylene glycol, 1,3-butanediol, neopentyl glycol, 1,4-cyclohexanedimethanol, or mixtures thereof; B. 2 to 8 weight percent of glycerol, trimethylolethane, trimethylolpropane or mixtures thereof; C. 15 to 25 weight percent epsilon-caprolactone; and D. 40 to 50 weight percent of a benzenedicarboxylic acid or anhydride thereof.
Claim 3
Dependent Claim
13 words
The composition of claim 1 which contains aminoplast cross-linking agent and acid catalyst.
Claim 4
Dependent Claim
19 words
The composition of claim 1 comprising A. neopentyl glycol and 1,4-cyclohexanedimethanol; B. trimethylolpropane; C. epsilon-caprolactone; and D. isophthalic acid.
Claim 5
Dependent Claim
10 words
The composition of claim 3 which contains aminoplast cross-linking agent.
Claim 6
Dependent Claim
8 words
The composition of claim 2 which contains pigment.
Claim 7
Dependent Claim
8 words
The composition of claim 4 which contains pigment.
Claim 8
Dependent Claim
18 words
An article coated with the composition of claim 2 in which the coating has been cured by cross-linking.
Claim 9
Dependent Claim
18 words
An article coated with the composition of claim 4 in which the coating has been cured by cross-linking.
References Cited (Backward Citations)
US4113793A
Cited
US4332701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-19 | 1987-03-21 | 1987-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-19 | 1991-03-21 | 1991-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-19 | 1995-03-21 | 1995-09-20 | $7700.00 | Window Closed / Lapsed |