US3076781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of vinylidene chloride/acrylonitrile copolymers and chlorinated polyolefins
Assignee: Hoechst AG
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Filing: 1959-01-28
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Granted: 1963-02-05
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Expires: 1979-01-28
Abstract
No abstract record available.
Inventors
- 👤 Frey Hans Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:08
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L27/00; C08L27/02; C08L27/04; C08L27/08; C08L33/00; C08L33/18; C08L33/20; C08L23/32; C08L23/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A COMPOSITION OF MATTER COMPRISING (1) 30 TO 90 PERCENT BY WEIGHT OF A COPOLYMER OF VINYLIDENE CHLORIDE AND ACRYLONITRILE CONTAINING AT LEAST 50 PERCENT BY WEIGHT VINYLIDENE CHLORIDE AND (2) 70 TO 10 PERCENT BY WEIGHT OF A SUBSTANTIALLY HOMOGENEOUSLY CHLORINATED MACROMOLECULAR POLYMER OF A COMPOUND SELECTED FROM THE GROUP CONSISTING SOLELY OF ETHYLENE, POLYLENE, BUTYLENE AND MIXTURES THEREOF, SAID COMPOSITION HAVING A NOTCHEDBAR IMPACT STRENGHT SUPERIOR TO THAT OF COPOLYMER (1).
Claim 2
Dependent Claim
73 words
A COMPOSITION OF MATTER COMPRISING (1) 30 TO 90 PERCENT BY WEIGHT OF A COPOLYMER OF VINYLIDENE CHLORIDE AND ACRYLONITRILE CONTAINING AT LEAST 50 PERCENT BY WEIGHT VINYLIDENE CHLORIDE AND (2) 70 TO 10 PERCENT BY WEIGHT OF A SUBSTANTIALLY HOMOGENEOUSLY CHLORINATED MACROMOLECULAR POLYMER OF A COMPOUND SELECTED FROM THE GROUP CONSISTING SOLELY OF ETHYLENE, POLYLENE, BUTYLENE AND MIXTURES THEREOF, SAID COMPOSITION HAVING A NOTCHEDBAR IMPACT STRENGHT SUPERIOR TO THAT OF COPOLYMER (1).
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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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |