US3928491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified vinyl ester resin and pipe made therefrom
Assignee: FOC Corp A DE CORP
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Filing: 1973-12-26
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Granted: 1975-12-23
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Expires: 1993-12-26
Abstract
Abstract A flexible crack-resistant and chemically resistant thermosetting vinyl ester resin is produced by co-reacting an epoxy resin, a carboxyl terminated elastomer and an unsaturated monocarboxylic acid, such as acrylic or methacrylic acid. The neat resin is miscible and copolymerizable with ethylenically unsaturated monomers such as styrene. A novel cast pipe utilizes the resin of the invention as an unreinforced crack-resistant inner lining.
Inventors
- 👤 William D Waters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:16
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4292; C08F; C08F283/00; C08F283/10; C08F299/00; C08F299/02; C08F299/026; F; F16; F16L; F16L9/00; F16L9/12; F16L9/133; Y; Y10; Y10S; Y10S525/00; Y10S525/922
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
58 words
A THERMOSETTING RESIN COMPOSITION COMPRISING THE REACTION PRODUCT OF AN EPOXY RESIN, A CARBOXYL TERMINATED ELASTOMER SELECTED FROM THE GROUP CONSISTING OF CARBOXYL TERMINATED HOMOPOLYMERS AND COPOLYMERS OF CONJUGATED DIENES AND AN UNSATURATED MONOCARBOXYLIC ACID, WHEREIN APPROXIMATELY ONE CHEMICAL EQUIVALENT OF EPOXY IS PROVIDED FOR EACH CHEMICAL EQUIVALENT OF CARBOXYL PROVIDED BY SAID ELASTOMER AND SAID ACID COMBINED.
Claim 2
Dependent Claim
58 words
A THERMOSETTING RESIN COMPOSITION COMPRISING THE REACTION PRODUCT OF AN EPOXY RESIN, A CARBOXYL TERMINATED ELASTOMER SELECTED FROM THE GROUP CONSISTING OF CARBOXYL TERMINATED HOMOPOLYMERS AND COPOLYMERS OF CONJUGATED DIENES AND AN UNSATURATED MONOCARBOXYLIC ACID, WHEREIN APPROXIMATELY ONE CHEMICAL EQUIVALENT OF EPOXY IS PROVIDED FOR EACH CHEMICAL EQUIVALENT OF CARBOXYL PROVIDED BY SAID ELASTOMER AND SAID ACID COMBINED.
Claim 3
Dependent Claim
13 words
The composition according to claim 1 wherein said epoxy resin is a di-epoxide.
Claim 4
Dependent Claim
29 words
The composition according to claim 1 wherein said elastomer is selected from the group consisting of carboxyl terminated butadiene and a carboxyL terminated random copolymer of butadiene and acrylonitrile.
Claim 5
Dependent Claim
21 words
The composition according to claim 1 wherein said acid is selected from the group consisting of acrylic acid and methacrylic acid.
Claim 6
Dependent Claim
71 words
A thermosetting resin composition comprising an admixture of (1) a neat thermosetting resin formed by reacting an epoxy resin, a carboxyl terminated elastomer selected from the group consisting of carboxyl terminated homopolymers and copolymers of conjugated dienes and an unsaturated monocarboxylic acid with approximately one chemical equivalent of epoxy being provided for each chemical equivalent of carboxyl provided by said elastomer and said acid combined and (2) an ethylenically unsaturated monomer.
Claim 7
Dependent Claim
71 words
A thermosetting resin composition comprising an admixture of (1) a neat thermosetting resin formed by reacting an epoxy resin, a carboxyl terminated elastomer selected from the group consisting of carboxyl terminated homopolymers and copolymers of conjugated dienes and an unsaturated monocarboxylic acid with approximately one chemical equivalent of epoxy being provided for each chemical equivalent of carboxyl provided by said elastomer and said acid combined and (2) an ethylenically unsaturated monomer.
Claim 8
Dependent Claim
37 words
The resin of claim 5 wherein said carboxyl terminated elastomer is selected from the group consisting of carboxyl terminated butadiene and a carboxyl terminated copolymer of butadiene and acrylonitrile, and wherein said ethylenically unsaturated monomer is styrene.
Claim 9
Dependent Claim
12 words
The resin of claim 5 wherein said epoxy resin is a di-epoxide.
Claim 10
Dependent Claim
22 words
The resin of claim 5 wherein said unsaturated carboxylic acid is selected from the group consisting of acrylic acid and methacrylic acid.
Claim 11
Dependent Claim
86 words
A thermosetting copolymerizable resin composition comprising an admixture of (1) approximately 50 weight percent of a neat thermosetting resin formed by reacting an epoxy resin, a carboxyl terminated elastomer selected from the gorup consisting of carboxyl terminated homopolymers and copolymers of conjugated dienes and an unsaturated monocarboxylic acid, with approximately one chemical equivalent of epoxy being provided by said epoxy resin for each chemical equivalent of carboxyl provided by said elastomer and said acid combined and (2) approximately 50 percent weight of an ethylenically unsaturated monomer.
Claim 12
Dependent Claim
86 words
A thermosetting copolymerizable resin composition comprising an admixture of (1) approximately 50 weight percent of a neat thermosetting resin formed by reacting an epoxy resin, a carboxyl terminated elastomer selected from the gorup consisting of carboxyl terminated homopolymers and copolymers of conjugated dienes and an unsaturated monocarboxylic acid, with approximately one chemical equivalent of epoxy being provided by said epoxy resin for each chemical equivalent of carboxyl provided by said elastomer and said acid combined and (2) approximately 50 percent weight of an ethylenically unsaturated monomer.
Claim 13
Dependent Claim
13 words
The thermosetting resin of claim 9 wherein said ethylenically unsaturated monomer is styrene.
Claim 14
Dependent Claim
89 words
A thermosetting copolymerizable resin composition comprising an admixture of (1) approximately 50 weight percent of a neat thermosetting resin formed by reacting approximately 1 part by weight methacrylic acid, approximately 2 parts by weight of a carboxyl terminated random copolymer of butadiene and acrylonitrile and approximately 2 parts by weight of a di-epoxide, with approximately one chemical equivalent of epoxy being provided by said di-epoxide resin for each chemical equivalent of carboxyl provided by said elastomer and said methacrylic acid combined and (2) approximately 50 weight percent of styrene.
Claim 15
Dependent Claim
89 words
A thermosetting copolymerizable resin composition comprising an admixture of (1) approximately 50 weight percent of a neat thermosetting resin formed by reacting approximately 1 part by weight methacrylic acid, approximately 2 parts by weight of a carboxyl terminated random copolymer of butadiene and acrylonitrile and approximately 2 parts by weight of a di-epoxide, with approximately one chemical equivalent of epoxy being provided by said di-epoxide resin for each chemical equivalent of carboxyl provided by said elastomer and said methacrylic acid combined and (2) approximately 50 weight percent of styrene.
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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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |