US3341628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of isotactic polyvinyl chloride and postchlorinated atactic polyvinyl chloride
Assignee: Dynamit Nobel AG
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Filing: 1966-10-12
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Granted: 1967-09-12
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Expires: 1986-10-12
Abstract
No abstract record available.
Inventors
- 👤 Buning Robert
- 👤 Diessel Karl-Heinz
- 👤 Cologne Bezirk
- 👤 Elsner Horst
- 👤 Konermann Hans-Ewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:13
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L27/22; C08L27/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
PROCESS FOR IMPROVING MECHANICAL PROPERTIES OF ISOTACTIC POLYVINYL CHLORIDE WHICH COMPRISES ADMIXING WITH ISOTACTIC POLYVINYL CHLORIDE, POSTCHLORINATED ATACTIC POLYVINYL CHLORIDE HAVING A CHLORINE CONTENT OF ABOUT 6268%, TO THOROUGHLY DISTRIBUTE THESE MATERIALS IN EACH OTHER, THE AMOUNT OF POSTCHLORINATED ATACTIC POLYVINYL CHLORIDE BEING FROM A SIGNIFICANT AMOUNT UP TO ABOUT 75% OF THE ADMIXTURE OF SAID POSTCHLORINATED ATACTIC POLYVINYL CHLORIDE AND ISOTACTIC POLYVINYL CHLORIDE.
Claim 2
Dependent Claim
64 words
PROCESS FOR IMPROVING MECHANICAL PROPERTIES OF ISOTACTIC POLYVINYL CHLORIDE WHICH COMPRISES ADMIXING WITH ISOTACTIC POLYVINYL CHLORIDE, POSTCHLORINATED ATACTIC POLYVINYL CHLORIDE HAVING A CHLORINE CONTENT OF ABOUT 6268%, TO THOROUGHLY DISTRIBUTE THESE MATERIALS IN EACH OTHER, THE AMOUNT OF POSTCHLORINATED ATACTIC POLYVINYL CHLORIDE BEING FROM A SIGNIFICANT AMOUNT UP TO ABOUT 75% OF THE ADMIXTURE OF SAID POSTCHLORINATED ATACTIC POLYVINYL CHLORIDE AND ISOTACTIC POLYVINYL CHLORIDE.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |