US4018749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable composition
Assignee: Sanyo Trading Co Ltd
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Filing: 1976-01-28
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Granted: 1977-04-19
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Expires: 1996-01-28
Abstract
Abstract A curable composition comprising a polybutadiene rubber having bromine bonded to at least one of its ends, and at least one amino acid selected from the group consisting of arginine, lysine, hydroxylysine and ornithine, and a curable composition comprising a polybutadiene having bromine bonded to at least one of its ends, a flowable epoxy resin, and at least one amino acid selected from the group consisting of arginene, lysine, hydroxylysine and ornithine.
Inventors
- 👤 Masao Onizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:47
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/175; C08L; C08L15/00; C08L15/02; C08L63/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
35 words
A curable composition comprising a liquid polybutadiene rubber having bromine bonded to at least one of its ends, and at least one amino acid selected from the group consisting of arginine, lysine, hydroxylysine and ornithine.
Claim 2
Dependent Claim
35 words
A curable composition comprising a liquid polybutadiene rubber having bromine bonded to at least one of its ends, and at least one amino acid selected from the group consisting of arginine, lysine, hydroxylysine and ornithine.
Claim 3
Dependent Claim
23 words
The composition of claim 1 wherein the polybutadiene rubber is a liquid rubber having a molecular weight of not more than about 10,000.
Claim 4
Dependent Claim
28 words
The composition of claim 1 wherein the amount of the amino acid is 0.01 to 50 parts by weight per 100 parts by weight of the polybutadiene rubber.
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) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |