US3947523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising epoxy resin, copolymer of butadiene and acrylic acid, curing agent and inorganic metal salt
Assignee: Olin Corp
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Filing: 1961-10-02
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Granted: 1976-03-30
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Expires: 1981-10-02
Abstract
Abstract 1. A composition of matter comprised of an epoxy resin, a copolymer of butadiene and acrylic acid, a curing agent, and between about 2.5 and about 30 percent by weight of an inorganic metal salt selected from the group consisting of metal chromates, metal bichromates, metal phosphates, and mixtures thereof.
Inventors
- 👤 Otto G. Schaffling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:29
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/32; F02K9/34; F02K9/346; C; C06; C06B; C06B45/00; C06B45/12; C08; C08K; C08K3/00; C08K3/02; C08K3/06; C08K3/18; C08K3/20; C08K3/22; C08K3/32; C08K5/00; C08K5/04; C08K5/14; C08K5/16; C08K5/29; C08K5/31; C08K5/32; C08K5/33; C08L; C08L13/00; C08L63/00; C08K3/24
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
49 words
A composition of matter comprised of an epoxy resin, a copolymer of butadiene and acrylic acid, a curing agent, and between about 2.5 and about 30 percent by weight of an inorganic metal salt selected from the group consisting of metal chromates, metal bichromates, metal phosphates, and mixtures thereof.
Claim 2
Dependent Claim
49 words
A composition of matter comprised of an epoxy resin, a copolymer of butadiene and acrylic acid, a curing agent, and between about 2.5 and about 30 percent by weight of an inorganic metal salt selected from the group consisting of metal chromates, metal bichromates, metal phosphates, and mixtures thereof.
Claim 3
Dependent Claim
13 words
The composition of claim 1 wherein said inorganic metal salt is zinc chromate.
References Cited (Backward Citations)
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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) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |