Patent US3668276A successfully refreshed from Google Patents.
US3668276A
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Coating compositions comprising aminoplasts and polyester blends
Assignee: Huels AG
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Filing: 1969-10-23
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Granted: 1972-06-06
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Expires: 1989-10-23
Abstract
Abstract Coating compositions resistant to yellowing, solvents, acids and alkalies and having the combination of high elasticity and good hardness are produced by using a mixture of A. AN AMINOPLAST AND B. A POLYESTER HAVING AN AVERAGE MOLECULAR WEIGHT OF 800-5,000 OF (I) an alcohol mixture which contains an aliphatic polyol having three to four hydroxyl groups and three to six carbon atoms and a diol which includes 1,4-bis(hydroxymethyl)cyclohexane, and (II) an acid mixture of one or more cyclic dicarboxylic acids and one or more acyclic dicarboxylic acids or functional acid derivatives thereof.
Inventors
- 👤 Franz Riemhofer
- 👤 Walter Dittmann
- 👤 Uwe Biethan
- 👤 Karl-Heinz Hornung
- 👤 Ernst-Christian Schutze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:33
CPC Classifications
C; C09; C09D; C09D167/00
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
35 words
9-67 molar percent of an acyclic acid component of at least one Aliphatic dicarboxylic acid of four to 12 carbon atoms or a functional acid derivative thereof convertible to said ester with said alcohol mixture.
Claim 2
Dependent Claim
19 words
A coating composition according to claim 1 wherein the polyesters have an average molecular weight between 1,000 and 4,000.
Claim 3
Dependent Claim
77 words
90-60 molar percent of a diol component of i. 30-100 molar percent of 1,4-bis-(hydroxymethyl)cyclohexane, and ii. 70-0 molar percent of another diol selected from the group consisting of aliphatic and cycloaliphatic diols and mixtures thereof whose hydroxyl groups are separated by two to eight carbon atoms and contain from zero to two oxygen atoms in the chain which are separated from each other by at least two carbon atoms, and II. an acid mixture consisting essentially of
Claim 4
Dependent Claim
20 words
A coating composition according to claim 2 wherein the polyesters have an average molecular weight between 1,500 and 3, 000.
Claim 5
Dependent Claim
22 words
A coating composition according to claim 1 wherein the acyclic acid component of the acid mixture contains four to six carbon atoms.
Claim 6
Dependent Claim
30 words
A coating composition according to claim 1 wherein the acid mixture consists of 67-50 molar percent of the cyclic acid component and 33-50 molar percent of the acyclic acid component.
Claim 7
Dependent Claim
20 words
A coating composition according to claim 1 wherein the cyclic acid component of the acid mixture is phthalic acid anhydride.
Claim 8
Dependent Claim
19 words
A coating composition according to claim 1 wherein the acyclic acid component of the acid mixture is adipic acid.
Claim 9
Dependent Claim
17 words
A coating composition according to claim 1 wherein the polyol component of the alcohol mixture is glycerin.
Claim 10
Dependent Claim
24 words
A coating composition according to claim 1 wherein the diol component of the alcohol mixture consists of a mixture of 1,4-bis(hydroxymethyl)cyclohexane and ethylene glycol.
Claim 11
Dependent Claim
23 words
A coating composition according to claim 1 wherein the diol component of the alcohol mixture consists of a mixture of 1,4-bis(hydroxymethyl)cyclohexane and 1,2-propanediol.
Claim 12
Dependent Claim
24 words
A coating composition according to claim 1 wherein the diol component of the alcohol mixture consists of a mixture of 1,4-bis(hydroxymethyl)cyclohexane and diethylene glycol.
Claim 13
Dependent Claim
21 words
A coating composition according to claim 1 wherein the diol component of the alcohol mixture consists of 1,4-bis(hydroxymethyl)cyclohexane and dipropylene glycol.
Claim 14
Dependent Claim
49 words
A coating composition according to claim 6 wherein the alcohol mixture consists of 15-30 molar percent of the polyol component and 85-70 molar percent of a diol component consisting of: i. more than 70 molar percent of 1,4-bis(hydroxymethyl)cyclohexane and ii. less than 30 molar percent of any other diol.
Claim 15
Dependent Claim
19 words
A coating composition according to claim 13 wherein the diol component of the alcohol mixture consists entirely of 1,4-bis(hydroxymethyl)cyclohexane.
Claim 16
Dependent Claim
44 words
A coating composition according to claim 1 wherein the alcohol mixture consists of: 10-30 molar percent of the polyol component and 90-70 molar percent of a diol component consisting of: i. 60-40 molar percent of 1,4-bis(hydroxy-methyl)cyclohexane and ii. 40-60 molar percent of another diol.
Claim 17
Dependent Claim
82 words
A coating composition according to claim 1 wherein the alcohol mixture consists of 10-40 molar percent of glycerin and 90-60 molar percent of a mixture of 1,4-bis-(hydroxymethyl)cyclohexane and a glycol selected from the group consisting of ethylene glycol, 1,2-propanediol, diethylene glycol and dipropylene glycol, and the acid mixture consists of 33-50 percent of an acyclic dicarboxylic acid containing four to six carbon atoms and 67-50 percent of a cyclic acid component selected from the group consisting of phthalic acid and adipic acid.
Claim 18
Dependent Claim
20 words
A coating composition according to claim 16 wherein the polyesters have an average molecular weight between 1,000 and 4, 000.
Claim 19
Dependent Claim
20 words
A coating composition according to claim 17 wherein the polyesters have an average molecular weight between 1,500 and 3, 000.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |