US4284734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moldable blend of interpolymer of rubber, methacrylic acid and styrene with polyurethane
Assignee: Lyondell Chemical Technology LP
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Filing: 1980-09-11
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Granted: 1981-08-18
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Expires: 2000-09-11
Abstract
Abstract The invention concerns thermoplastic molding compositions consisting essentially of a blend of: A. From about 40% to about 70% by weight of an interpolymer comprising from about 8% to about 16% block polyalkadiene, and from about 51% to about 85% styrene and from about 5% to about 35% methacrylic acid. B. From about 30% to about 60% of a polyurethane thermoplastic rubber.
Inventors
- 👤 Clarence E. Chaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:42
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/04; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
Thermoplastic molding compositions consisting of a blend of: A. From about 40% to about 70% by weight of an interpolymer comprising from about 8 to about 16% block polyalkadiene about 51 to about 85% styrene and from about 5% to about 45% methacrylic acid. B. From about 30% to about 60% of a polyurethane thermoplastic rubber.
Claim 2
Dependent Claim
56 words
Thermoplastic molding compositions consisting of a blend of: A. From about 40% to about 70% by weight of an interpolymer comprising from about 8 to about 16% block polyalkadiene about 51 to about 85% styrene and from about 5% to about 45% methacrylic acid. B. From about 30% to about 60% of a polyurethane thermoplastic rubber.
References Cited (Backward Citations)
US4096200A
Cited
US4088627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-17 | 1985-02-16 | 1985-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-17 | 1989-02-16 | 1989-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-17 | 1993-02-16 | 1993-08-18 | $7700.00 | Window Closed / Lapsed |