US4288571A
Expired / Lapsed
US
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Polyester compositions
Assignee: Union Carbide Corp
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Filing: 1973-02-26
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Granted: 1981-09-08
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Expires: 1993-02-26
Abstract
Abstract The disclosure of this application is directed to unsaturated polyester compositions, containing as a low-profile additive a carboxyl containing thermoplastic polymer of a vinyl ester of an aliphatic, saturated monocarboxylic acid, which have particular utility in molding applications to form aesthetically attractive thermoset articles characterized by excellent physical properties, as for example, impact strength and by excellent surface properties such as excellent smoothness and gloss, excellent receptiveness to paints and excellent reproduction of the surface contours of the mold in which they are formed into shaped, thermoset articles.
Inventors
- 👤 Lowell R. Comstock
- 👤 Percy L. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:29
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
101 words
A composition, suitable for use in molding, comprising an ethylenically unsaturated monomer, an unsaturated polyester which is the condensation product of an ethylenically unsaturated polycarboxylic acid or anhydride and a polyol, and, as a low profile additive, in an amount of from about 1 to about 85 weight percent, based on weight of said unsaturated polyester, a carboxyl containing polymer of a vinyl ester of an aliphatic, saturated monocarboxylic acid, wherein said carboxyl containing polymer contains from about 0.2 to about 5 weight percent of a polymerized carboxyl containing comonomer, and at least about 5 weight percent of polymerized vinyl alkanoate.
Claim 2
Dependent Claim
101 words
A composition, suitable for use in molding, comprising an ethylenically unsaturated monomer, an unsaturated polyester which is the condensation product of an ethylenically unsaturated polycarboxylic acid or anhydride and a polyol, and, as a low profile additive, in an amount of from about 1 to about 85 weight percent, based on weight of said unsaturated polyester, a carboxyl containing polymer of a vinyl ester of an aliphatic, saturated monocarboxylic acid, wherein said carboxyl containing polymer contains from about 0.2 to about 5 weight percent of a polymerized carboxyl containing comonomer, and at least about 5 weight percent of polymerized vinyl alkanoate.
Claim 3
Dependent Claim
34 words
A composition as defined in claim 1 wherein the vinyl ester polymer is present in an amount of about 1 to about 60 percent by weight based on the weight of the unsaturated polyester.
Claim 4
Dependent Claim
31 words
A composition as defined in claim 1 wherein the carboxyl containing polymer is a polymer of a vinyl ester of an aliphatic, saturated monocarboxylic acid and an ethylenically unsaturated carboxylic acid.
Claim 5
Dependent Claim
38 words
A composition as defined in claim 1 wherein the vinyl ester of an aliphatic, saturated monocarboxylic acid has the formula: ##STR4## wherein R" is hydrogen or a saturated, aliphatic hydrocarbon radical having a maximum of 20 carbon atoms.
Claim 6
Dependent Claim
22 words
A composition as defined in claim 1 wherein R" is a saturated, aliphatic hydrocarbon radical having a maximum of 8 carbon atoms.
Claim 7
Dependent Claim
15 words
A composition as defined in claim 1 wherein the said vinyl ester is vinyl acetate.
Claim 8
Dependent Claim
44 words
A composition as defined in claim 1 wherein the unsaturated polyester is a condensation reaction product of a mixture containing a polyol and an acid having the formula: C.sub.n H.sub.2n-2 (COOH).sub.2 wherein n is an integer having a value of 2 to 20 inclusive.
Claim 9
Dependent Claim
33 words
A composition as defined in claim 1 wherein the polyol has the formula: ##STR5## wherein the sum of m+p is 1 to 20 inclusive, R 1 and R 2 are hydrogen or alkyl.
Claim 10
Dependent Claim
34 words
A composition as defined in claim 1 wherein the polyol has the formula: HO--C.sub.a H.sub.2a O).sub.x H wherein a has a maximum value of 6, x has a value of 2 to 10 inclusive.
Claim 11
Dependent Claim
21 words
A composition as defined in claim 1 wherein the polyol is propylene glycol and the acid anhydride is maleic acid anhydride.
Claim 12
Dependent Claim
12 words
A compositon as defined in claim 1 wherein the monomer is styrene.
Claim 13
Dependent Claim
10 words
A composition as defined in claim 1 containing a peroxide.
Claim 14
Dependent Claim
10 words
The cured product of the composition defined in claim 12.
Claim 15
Dependent Claim
35 words
A composition as defined in claim 1 wherein the unsaturated polyester is the condensation reaction product of a mixture containing polyol, an unsaturated polycarboxylic acid or anhydride thereof and an aromatic acid or anhydride thereof.
Claim 16
Dependent Claim
14 words
A composition as defined in claim 14 wherein the aromatic acid is phthalic acid.
Claim 17
Dependent Claim
16 words
A composition as defined in claim 14 wherein the aromatic acid anhydride is phthalic acid anhydride.
Claim 18
Dependent Claim
67 words
A composition as defined in claim 1 containing a polymerizable ethylenically unsaturated monomer in an amount of about 10 to about 60 percent by weight based on the combined weight of said monomer and said polyester and a Group I, II or IV metal oxide or hydroxide thickener in an amount of about 0.5 to about 75 percent by weight based on the weight of said polyester.
Claim 19
Dependent Claim
112 words
A composition as defined in claim 1 containing a polymerizable ethylenically unsaturated monomer in an amount of about 10 to about 60 percent by weight based on the combined weight of said monomer and said polyester, a Group I, II or IV metal oxide or hydroxide in an amount of about 0.5 to about 75 percent by weight based on the weight of said polyester and wherein the carboxyl containing vinyl polymer is a polymer of vinyl acetate having an average of at least one carboxyl group per molecule and is present in an amount of about 1 to about 60 percent by weight based on the weight of the said polyester.
Claim 20
Dependent Claim
16 words
A composition as defined in claim 17 wherein the thickener is a Group II metal oxide.
Claim 21
Dependent Claim
16 words
A composition as defined in claim 17 wherein the thickener is a Group II metal hydroxide.
Claim 22
Dependent Claim
16 words
A composition as defined in claim 17 wherein the thickener is a Group IV metal oxide.
Claim 23
Dependent Claim
16 words
A composition as defined in claim 17 wherein the thickener is a Group IV metal hydroxide.
Claim 24
Dependent Claim
13 words
A composition as defined in claim 17 wherein the thickener is calcium hydroxide.
Claim 25
Dependent Claim
19 words
A composition as defined in claim 17 wherein the polyol is ethylene glycol and the acid is fumaric acid.
Claim 26
Dependent Claim
21 words
A composition as defined in claim 17 wherein the polyol is propylene glycol and the acid anhydride is maleic acid anhydride.
Claim 27
Dependent Claim
16 words
A composition as defined in claim 17 wherein the ethylenically unsaturated monomer is a vinyl monomer.
Claim 28
Dependent Claim
13 words
A composition as defined in claim 26 wherein the vinyl monomer is styrene.
Claim 29
Dependent Claim
10 words
The thermoset product of the composition defined in claim 26.
Claim 30
Dependent Claim
16 words
A composition as defined in claim 17 wherein the thickener is a Group I metal oxide.
Claim 31
Dependent Claim
16 words
A composition as defined in claim 17 wherein the thickener is a Group I metal hydroxide.
Claim 32
Dependent Claim
76 words
A composition comprising (A) an unsaturated polyester which is the condensation product of at least one ethylenically unsaturated dicarboxylic acid with at least one dihydric alcohol, (B) an ethylenically unsaturated monomer, and (C) 1 to 60 percent by weight, based on the combined weight of the unsaturated polyester and the ethylenically unsaturated monomer, of a polymer containing, in combined form, vinyl acetate and about 0.2 to about 5 percent by weight of ethylenically unsaturated carboxylic acid.
Claim 33
Dependent Claim
76 words
A composition comprising (A) an unsaturated polyester which is the condensation product of at least one ethylenically unsaturated dicarboxylic acid with at least one dihydric alcohol, (B) an ethylenically unsaturated monomer, and (C) 1 to 60 percent by weight, based on the combined weight of the unsaturated polyester and the ethylenically unsaturated monomer, of a polymer containing, in combined form, vinyl acetate and about 0.2 to about 5 percent by weight of ethylenically unsaturated carboxylic acid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |