US3909483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tack free polymerizable polyester compositions
Assignee: Ruco Polymer Corp
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Filing: 1974-04-09
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Granted: 1975-09-30
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Expires: 1994-04-09
Abstract
Abstract Polymerizable polyester compositions containing a saturated polyester having terminal carboxylic acid groups and an hydroxyl number of less than about 10 are provided which compositions are free from tackiness in the uncured state and which on curing are resistant to shrinkage and have improved surface smoothness. The compositions are useful as sheet molding compounds.
Inventors
- 👤 Raymond R Hindersinn
- 👤 Jeffrey E Selley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:29
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/24; C08K3/26; C08L67/02
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
7 words
A POLYMERIZABLE POLYESTER COMPOSITION OF COMPONENTS COMPRISING
Claim 2
Dependent Claim
7 words
A POLYMERIZABLE POLYESTER COMPOSITION OF COMPONENTS COMPRISING
Claim 3
Dependent Claim
41 words
A CARBOXY GROUP TERMINATED SATURATED POLYESTER OF A DIOL AND A DISCHARBOXYLIC COMPOUND HAVING A MOLECULAR WEIGHT OF ABOUT 2000 TO ABOUT 25,000, AN ACID NUMBER OF ABOUT 2 TO ABOUT 40 AND A HYDROXYL NUMBER OF LESS THAN ABOUT 10,
Claim 4
Dependent Claim
41 words
A CARBOXY GROUP TERMINATED SATURATED POLYESTER OF A DIOL AND A DISCHARBOXYLIC COMPOUND HAVING A MOLECULAR WEIGHT OF ABOUT 2000 TO ABOUT 25,000, AN ACID NUMBER OF ABOUT 2 TO ABOUT 40 AND A HYDROXYL NUMBER OF LESS THAN ABOUT 10,
Claim 5
Dependent Claim
15 words
AN A,B-ETHYLENICALLY UNSATURATED POLYESTER OF A DIOL AND A A,B-ETHYLENICALLY UNSATURAED MONOMER DICARBOXYLIC COMPOUND, AND
Claim 6
Dependent Claim
15 words
AN A,B-ETHYLENICALLY UNSATURATED POLYESTER OF A DIOL AND A A,B-ETHYLENICALLY UNSATURAED MONOMER DICARBOXYLIC COMPOUND, AND
Claim 7
Dependent Claim
20 words
an Alpha , Beta -ethylenically unsaturated polyester of a diol and a Alpha , Beta -ethylenically unsaturated dicarboxylic compound, and
Claim 8
Dependent Claim
20 words
an Alpha , Beta -ethylenically unsaturated polyester of a diol and a Alpha , Beta -ethylenically unsaturated dicarboxylic compound, and
Claim 9
Dependent Claim
21 words
The composition as claimed in claim 1 wherein said saturated polyester has a molecular weight of about 5000 to about 10,000.
Claim 10
Dependent Claim
59 words
an Alpha , Beta -ethylenically unsaturated monomer copolymerizable with said unsaturated polyester; said saturated polyester being present in the amount of at least about 5 parts by weight and said unsaturated polyester being present in the amount of at least about 30 parts by weight per 100 parts by weight of the mixture of polyesters and said copolymerizable monomer.
Claim 11
Dependent Claim
59 words
an Alpha , Beta -ethylenically unsaturated monomer copolymerizable with said unsaturated polyester; said saturated polyester being present in the amount of at least about 5 parts by weight and said unsaturated polyester being present in the amount of at least about 30 parts by weight per 100 parts by weight of the mixture of polyesters and said copolymerizable monomer.
Claim 12
Dependent Claim
19 words
The composition of claim 2 wherein the saturated polyester has an acid number of about 5 to about 30.
Claim 13
Dependent Claim
56 words
AN A,B-ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE WITH SAID UNSATURATED POLYESTER, SAID SATURATED POLYESTER BEING PRESENT IN THE AMOUNT OF AT LEAST ABOUT 5 PARTS BY WEIGHT AND SAID UNSATURATED POLYESTER BEING PRESENT IN THE AMOUNT OF AT LEAST ABOUT 30 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF THE MIXTURE OF POLYESTERS AND SAID COPLYMERIZABLE MONOMER.
Claim 14
Dependent Claim
56 words
AN A,B-ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE WITH SAID UNSATURATED POLYESTER, SAID SATURATED POLYESTER BEING PRESENT IN THE AMOUNT OF AT LEAST ABOUT 5 PARTS BY WEIGHT AND SAID UNSATURATED POLYESTER BEING PRESENT IN THE AMOUNT OF AT LEAST ABOUT 30 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF THE MIXTURE OF POLYESTERS AND SAID COPLYMERIZABLE MONOMER.
Claim 15
Dependent Claim
18 words
The composition of claim 1 wherein the saturated polyester has a hydroxyl number of less than about 5.
Claim 16
Dependent Claim
36 words
The composition of claim 1 wherein the saturated polyester is present in the amount of from 10 to about 20 parts by weight per 100 parts by weight of the mixture of polyesters and copolymerizable monomer.
Claim 17
Dependent Claim
37 words
The composition of claim 5 wherein the unsaturated polyester is present in the amount of from about 30 to about 50 parts by weight per 100 parts by weight of the mixture of polyesters and copolymerizable monomer.
Claim 18
Dependent Claim
36 words
The composition of claim 1 wherein the copolymerizable mOnomer is present in the amount of about 20 to about 60 parts by weight per 100 parts by weight of the mixture of polyesters and copolymerizable monomer.
Claim 19
Dependent Claim
36 words
The composition of claim 7 wherein the copolymerizable monomer is present in the amount of about 20 to about 50 parts by weight per 100 parts by weight of the mixture of polyesters and copolymerizable monomer.
Claim 20
Dependent Claim
14 words
The composition of claim 1 wherein the composition also comprises an inorganic thickening agent.
Claim 21
Dependent Claim
28 words
The composition of claim 9 wherein the inorganic thickener is selected from the group consisting of magnesium oxide, magnesium hydroxide, basic magnesium carbonate, calcium hydroxide and mixtures thereof.
Claim 22
Dependent Claim
29 words
The composition of claim 1 wherein the unsaturated polyester is formed by reaction of a diol and a mixture of a dicarboxylic acid and a chlorine containing dicarboxylic acid.
Claim 23
Dependent Claim
14 words
The composition of claim 11 wherein the chlorine containing dicarboxylic acid is chlorendic acid.
Claim 24
Dependent Claim
29 words
The composition of claim 12, wherein the chlorendic acid is present in amount sufficient to provide an unsaturated polyester having at least about 10 percent by weight of chlorine.
Claim 25
Dependent Claim
68 words
The composition of claim 1 wherein the saturated polyester is obtained by reacting initially a diol with a dicarboxylic acid or anhydride to form a polyester having at least one terminal hydroxyl group and subsequently reacting the initially prepared polyester with an additional quantity of the same or different dicarboxylic acid or anhydride to prepare a carboxyl terminated saturated polyester having a hydroxyl number of less than 10.
Claim 26
Dependent Claim
27 words
The composition of claim 14 wherein the dicarboxylic acid used to react with the initially formed polyester is the same dicarboxylic acid used in the initial reaction.
Claim 27
Dependent Claim
38 words
The process of claim 15 wherein the polyester initially formed is the product of reaction of a mixture of ethylene glycol and 1,4-butane diol with adipic acid which then is reacted with an additional quantity of adipic acid.
Claim 28
Dependent Claim
31 words
The composition of claim 14 wherein the dicarboxylic acid or anhydride used to react with the initially formed polyester is a different polycarboxylic acid from that used in the initial reaction.
Claim 29
Dependent Claim
35 words
The composition of claim 17 wherein the polyester initially formed is the product of reaction of a mixture of ethylene glycol and 1,4-butane diol with adipic acid which polyester is subsequently reacted with succinic anhydride.
Claim 30
Dependent Claim
36 words
The composition of claim 17 wherein the polyester initially formed is the product of reaction of a mixture of ethylene glycol and 1,4-butane diol with adipic acid which polyester is subsequently reacted with tetrabromo phthalic anhydride.
Claim 31
Dependent Claim
30 words
A thickened non-tacky sheet molding compound comprising a polymerizable polyester composition as defined in claim 1, fillers, an inorganic thickening agent, a free radical generating catalyst and reinforcing glass fibers.
Claim 32
Dependent Claim
27 words
A thickened non-tacky sheet molding compound comprising a polymerizable polyester composition as defined in claim 10 and fillers, a free radical generating catalyst and reinforcing glass fibers.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |