Patent US3674727A successfully refreshed from Google Patents.
US3674727A
Expired / Lapsed
US
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Unsaturated polyesters
Assignee: Beazer East Inc
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Filing: 1970-10-20
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Granted: 1972-07-04
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Expires: 1990-10-20
Abstract
Abstract An unsaturated polyester prepared by reacting under esterification conditions the following reactants; A. AN ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID; B. TETRAHYDROPHTHALIC ANHYDRIDE OR ENDOMETHYLENE TETRAHYDROPHTHALIC ANHYDRIDE; C. AN ALIPHATIC SATURATED DICARBOXYLIC ACID OR A DIMER OR TRIMER OF AN ETHYLENICALLY UNSATURATED ALIPHATIC MONOCARBOXYLIC ACID; AND D. CYCLOHEXANEDIMETHANOL OR A MIXTURE OF NEOPENTYL GLYCOL AND A SECOND DIHYDRIC ALCOHOL. Upon crosslinking or curing the unsaturated polyester with a vinyl monomeric crosslinking agent, there can be obtained products having improved thermal stability properties.
Inventors
- 👤 Frank Fekete
- 👤 John S Mcnally
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:46
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/553
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
33 words
about 1 to about 12 mole percent of an aliphatic saturated dicarboxylic acid or a dimer or trimer of an ethylenically unsaturated aliphatic monocarboxylic acid having about 14 to about 22 carbon atoms;
Claim 2
Dependent Claim
33 words
about 1 to about 25 mole percent of an aliphatic saturated dicarboxylic acid or a dimer or trimer of an ethylenically unsaturated aliphatic monocarboxylic acid having about 14 to about 22 carbon atoms;
Claim 3
Dependent Claim
27 words
A polymerizable composition comprising: a. the unsaturated polyester of claim 1; and b. a vinyl monomer capable of crosslinking with said polyester to form a thermoset polymer.
Claim 4
Dependent Claim
13 words
A composition according to claim 2, wherein said vinyl monomer is vinyl toluene.
Claim 5
Dependent Claim
70 words
about 5 to about 20 mole percent of tetrahydrophthalic anhydride or endomethylene tetrahydrophthalic anhydride; and B. a dihydric alcohol selected from the group consisting of 1,4-cyclohexanedimethanol and a mixture of about 20 to about 40 mole percent of neopentyl glycol and about 10 to about 30 mole percent of a second dihydric alcohol; wherein the total mole percent of each of the acid and dihydric alcohol reactants are about equal.
Claim 6
Dependent Claim
70 words
about 10 to about 15 mole percent of tetrahydrophthalic anhydride or endomethylene tetrahydrophthalic anhydride; and B. a dihydric alcohol elected from the group consisting of 1,4-cyclohexanedimethanol and a mixture of about 25 to about 35 mole percent of neopentyl glycol and about 15 to about 25 mole percent of a second dihydric alcohol; wherein the total mole percent of each of the acid and dihydric alcohol reactants are about equal.
Claim 7
Dependent Claim
17 words
An unsaturated polyester consisting essentially of the esterification product of: A an acid reactant consisting essentially of:
Claim 8
Dependent Claim
29 words
An unsaturated polyester in accordance with claim 4 wherein said saturated dicarboxylic acid is selected from the group consisting of succinic, adipic, azelaic and sebacic acids and mixtures thereof.
Claim 9
Dependent Claim
28 words
An unsaturated polyester in accordance with claim 4 wherein reactant (A) (2) is said dimer acid and wherein said dimer acid is prepared from a C18 fatty acid.
Claim 10
Dependent Claim
22 words
An unsaturated polyester resin in accordance with claim 4 wherein said dihydric alcohol reactant is a mixture of neopentyl glycol and 1,4-cyclohexanedimethanol.
Claim 11
Dependent Claim
40 words
A polymerizable composition comprising: A. the unsaturated polyester of claim 4; and B. a vinyl monomer capable of crosslinking with said polyester to form a thermoset polymer. 9. A composition according claim 8 wherein said vinyl monomer is vinyl toluene.
Claim 12
Dependent Claim
17 words
An unsaturated polyester consisting essentially of the esterification product of: A. an acid reactant consisting essentially of:
Claim 13
Dependent Claim
29 words
An unsaturated polyester in accordance with claim 10 wherein said saturated dicarboxylic acid is selected from the group consisting of succinic, adipic, azelaic and sebacic acids and mixtures thereof.
Claim 14
Dependent Claim
28 words
An unsaturated polyester in accordance with claim 10 wherein reactant (A) (2) is said dimer acid and wherein said dimer acid is prepared from a C18 fatty acid.
Claim 15
Dependent Claim
21 words
An unsaturated polyester in accordance with claim 10 wherein said dihydric alcohol reactant is a mixture of neopentyl glycol and 1,4-cyclohexanedimethanol.
Claim 16
Dependent Claim
27 words
A polymerizable composition comprising: a. the unsaturated polyester of claim 10; and b. a vinyl monomer capable of crosslinking with said polyester to form a thermoset polymer.
Claim 17
Dependent Claim
13 words
A composition according to claim 14, wherein said vinyl monomer is vinyl toluene.
Claim 18
Dependent Claim
27 words
A polymerizable composition comprising: A. the unsaturated polyester of claim 11; and B. a vinyl monomer capable of crosslinking with said polyester to form a thermoset polymer.
Claim 19
Dependent Claim
12 words
A composition according claim 16 wherein said vinyl monomer is vinyl toluene.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |