Patent US3825622A successfully refreshed from Google Patents.
US3825622A
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US
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Impact modified blends of vinyl chloride polymers,lactone graft copolymers and styrene-dien-styrene block copolymers
Assignee: Occidental Chemical Corp
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Filing: 1972-11-20
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Granted: 1974-07-23
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Expires: 1992-11-20
Abstract
Abstract VINYL CHLORIDE POLYMER COMPOSITIONS HAVING A MASLAND COLD CRACK TEST TUBE OF ABOUT -30*C. HAVE BEEN PROVIDED BY COMBINATING LACTONE GRAFT COPOLYMERS TOGETHER WITH A STYRENE-DIENE-STYRENE BLOCK COPOLYMER.
Inventors
- 👤 L Robeson
- 👤 L Pilato
- 👤 R Godlewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:23
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/06; C08G63/08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L33/00; C08L33/04; C08L33/14; C08L53/00; C08L53/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |