Patent US4554322A successfully refreshed from Google Patents.
US4554322A
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Room temperature curable polybutadiene resins with copper ethylacetoacetate catalyst
Assignee: Westinghouse Electric Corp
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Filing: 1984-03-20
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Granted: 1985-11-19
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Expires: 2004-03-20
Abstract
Abstract Disclosed is a polybutadiene containing resin system which is curable at room temperature by the addition of copper ethylacetoacetate. The resin system consists of about 5 to about 25% polybutadiene, about 55 to about 90% dicyclopentadiene acrylate, about 5 to about 20% of a monomer having 2 to 4 unsaturated groups selected from vinylic, acrylic, and mixtures thereof, about 0.25 to about 3% free radical initiator, and about 0.1 to about 0.8% of a coaccelerator. Also disclosed is a method of curing a resin system and various products made therewith.
Inventors
- 👤 James R. Kwiecinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:54
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
85 words
A two-part polybutadiene containing resin system curable at room temperature in air comprising: I. copper ethylacetoacetate; and II. a blend which comprises (A) about 5 to about 25% polybutadiene that is soluble in said blend; (B) about 55 to about 90% dicyclopentadiene acrylate; (C) about 5 to about 20% of a polyfunctional monomer having 2 to 4 unsaturated groups selected from vinylic, acrylic, and mixtures thereof; (D) about 0.25 to about 3% free radical initiator; and (E) about 0.1 to about 0.8% of a coaccelerator.
Claim 2
Dependent Claim
85 words
A two-part polybutadiene containing resin system curable at room temperature in air comprising: I. copper ethylacetoacetate; and II. a blend which comprises (A) about 5 to about 25% polybutadiene that is soluble in said blend; (B) about 55 to about 90% dicyclopentadiene acrylate; (C) about 5 to about 20% of a polyfunctional monomer having 2 to 4 unsaturated groups selected from vinylic, acrylic, and mixtures thereof; (D) about 0.25 to about 3% free radical initiator; and (E) about 0.1 to about 0.8% of a coaccelerator.
Claim 3
Dependent Claim
12 words
A resin system according to claim 1 wherein said polybutadiene is 1,2-polybutadiene.
Claim 4
Dependent Claim
20 words
A resin system according to claim 1 wherein the amount of said dicyclopentadiene acrylate is about 60 to about 85%.
Claim 5
Dependent Claim
14 words
A resin system according to claim 1 wherein said monomer is a polyfunctional acrylate.
Claim 6
Dependent Claim
15 words
A resin system according to claim 4 wherein said polyfunctional acrylate is pentaerythritol tetra acrylate.
Claim 7
Dependent Claim
21 words
A resin system according to claim 1 wherein the amount of said free radical initiator is about 0.5 to about 1.
Claim 8
Dependent Claim
15 words
A resin system according to claim 1 wherein said free radical initiator is a hydroperoxide.
Claim 9
Dependent Claim
13 words
A resin system according to claim 7 wherein said hydroperoxide is cumene hydroperoxide.
Claim 10
Dependent Claim
45 words
A resin system according to claim 1 wherein said coaccelerator is a mixture of about 0.05 to about 0.4% of a compound selected from the group consisting of tertiary amines, amides, and mixtures thereof, and about 0.05 to about 0.4% of an organic sulfur compound.
Claim 11
Dependent Claim
31 words
A resin system according to claim 1 wherein said coaccelerator is a mixture of about 0.1 to about 0.3% of N,N-dimethyl para toluidine and about 0.05 to about 0.15% o-benzoic sulfimide.
Claim 12
Dependent Claim
17 words
A resin system according to claim 1 wherein said copper ethylacetoacetate has been mixed with said blend.
Claim 13
Dependent Claim
25 words
A resin system according to claim 1 wherein said copper ethylacetoacetate is in about a 1 to about a 2% solution of an organic solvent.
Claim 14
Dependent Claim
131 words
A two part resin system that cures at room temperature in air when the two parts are combined, comprising: I. a blend part which comprises (A) about 5 to about 25% 1,2-unsaturated polybutadiene that is soluble in said blend; (B) about 55 to about 90% dicyclopentadiene acrylate; (C) about 5 to about 20% of a polyfunctional acrylate having 2 to 4 unsaturated groups; (D) about 0.25 to about 3% of a hydroperoxide; and (E) about 0.1 to about 0.8% of a coaccelerator which comprises a mixture of about 0.05 to about 0.4% of a compound selected from the group consisting of tertiary amines, amides, and mixtures thereof, and about 0.05 to about 0.4% of an organic sulfur compound; and II. a catalyst part of about 0.01 to about 0.3% copper ethylacetoacetate.
Claim 15
Dependent Claim
131 words
A two part resin system that cures at room temperature in air when the two parts are combined, comprising: I. a blend part which comprises (A) about 5 to about 25% 1,2-unsaturated polybutadiene that is soluble in said blend; (B) about 55 to about 90% dicyclopentadiene acrylate; (C) about 5 to about 20% of a polyfunctional acrylate having 2 to 4 unsaturated groups; (D) about 0.25 to about 3% of a hydroperoxide; and (E) about 0.1 to about 0.8% of a coaccelerator which comprises a mixture of about 0.05 to about 0.4% of a compound selected from the group consisting of tertiary amines, amides, and mixtures thereof, and about 0.05 to about 0.4% of an organic sulfur compound; and II. a catalyst part of about 0.01 to about 0.3% copper ethylacetoacetate.
Claim 16
Dependent Claim
20 words
A resin system according to claim 13 wherein said coaccelerator is a mixture of N,N-dimethyl para toluidine and o-benzoic sulfimide.
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) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |