US4128539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable vinyl chloride resin composition
Assignee: Sanyo Trading Co Ltd
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Filing: 1977-12-27
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Granted: 1978-12-05
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Expires: 1997-12-27
Abstract
Abstract A curable composition comprising a vinyl chloride resin and lysine as a sole curing agent; and a curable composition comprising a vinyl chloride resin, at least one amino acid selected from the group consisting of lysine, ornithine, arginine and proline, and at least one sulfur compound selected from the group consisting of sulfur and sulfur donors, which may further contain rubber.
Inventors
- 👤 Masao Onizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:47
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/175; C08L; C08L13/00; C08L21/00; C08L9/00; C08L9/02; C08L9/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
15 words
A curable composition comprising a vinyl chloride resin and lysine as a sole curing agent.
Claim 2
Dependent Claim
15 words
A curable composition comprising a vinyl chloride resin and lysine as a sole curing agent.
Claim 3
Dependent Claim
27 words
The composition of claim 1 wherein the amount of lysine is 0.1 to 50 parts by weight per 100 parts by weight of the vinyl chloride resin.
Claim 4
Dependent Claim
11 words
A cured article obtained by curing the composition of claim 1.
Claim 5
Dependent Claim
40 words
A curable composition comprising a vinyl chloride resin, at least one amino acid selected from the group consisting of lysine, ornithine, arginine and proline, and at least one sulfur compound selected from the group consisting of sulfur and sulfur donors.
Claim 6
Dependent Claim
40 words
A curable composition comprising a vinyl chloride resin, at least one amino acid selected from the group consisting of lysine, ornithine, arginine and proline, and at least one sulfur compound selected from the group consisting of sulfur and sulfur donors.
Claim 7
Dependent Claim
44 words
The composition of claim 4 wherein the amount of the amino acid is 0.1 to 50 parts by weight, and the amount of the sulfur compound is 0.01 to 50 parts by weight, both per 100 parts by weight of the vinyl chloride resin.
Claim 8
Dependent Claim
11 words
A cured article obtained by curing the composition of claim 4.
Claim 9
Dependent Claim
41 words
A curable composition comprising a vinyl chloride resin, rubber, at least one amino acid selected from the group consisting of lysine, ornithine, arginine and proline, and at least one sulfur compound selected from the group consisting of sulfur and sulfur donors.
Claim 10
Dependent Claim
41 words
A curable composition comprising a vinyl chloride resin, rubber, at least one amino acid selected from the group consisting of lysine, ornithine, arginine and proline, and at least one sulfur compound selected from the group consisting of sulfur and sulfur donors.
Claim 11
Dependent Claim
75 words
The composition of claim 7 wherein the amount of the rubber is 0.01 to 100 parts by weight per part by weight of the vinyl chloride polymer in the vinyl chloride resin, and wherein per 100 parts by weight of the vinyl chloride polymer and the rubber combined, the amount of the amino acid is 0.1 to 50 parts by weight, and the amount of the sulfur compound is 0.01 to 100 parts by weight.
Claim 12
Dependent Claim
11 words
A cured article obtained by curing the composition of claim 7.
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) | 1981-12-04 | 1982-06-05 | 1982-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-04 | 1986-06-05 | 1986-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-04 | 1990-06-05 | 1990-12-05 | $7700.00 | Window Closed / Lapsed |