US3242234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastification of polyvinyl chloride polymers with olefin polymers chlorinated in the presence of polyvinyl chloride
Assignee: Hoechst AG
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Filing: 1961-07-17
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Granted: 1966-03-22
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Expires: 1981-07-17
Abstract
No abstract record available.
Inventors
- 👤 Frey Hans-Helmut
- 👤 Klug Helmut
- 👤 Mittelberger Karl-Heinz
- 👤 Nolte Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:54
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08F; C08F265/00; C08F265/04; C08F265/06; C08F8/00; C08F8/18; C08F8/20; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L51/00; C08L51/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A COMPOSITION OF MATTER CONSISTING OF (1) 10 TO 95% BY WEIGHT OF A BASE POLYMER OF THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND COPOLYMERS OF VINYL CHLORIDE WITH UP TO 50 PERCENT BY WEIGHT OF A COMONOMER SELECTED FROM THE GROUP CONSISTING OF VINY ESTERS, VINYLIDENE CHLORIDE AND ESTERS OF ACRYLIC, METHACRYLIC, MALEIC AND FUMARIC ACIDS WITH ALIPHATIC, SATURATED, MONOHYDRIC ALCOHOLS OF ONE TO TEN CARBON ATOMS, IN INTIMATE ADMIXTURE WITH (2) 90 TO 5% BY WEIGHT OF A CHLORINATION PRODUCT PREPARED BY CHLORINATING A HIGH MOLECULAR WEIGHT OLEFINIC POLYMER OF THE GROUP CONSISTING OF HOMOPOLYMERS OF OLEFINS AND COPOLYMERS OF OLEFINS WITH ONE ANOTHER TO A CHLORINE CONTENT OF ABOUT 20 TO 50 PERCENT BY WEIGHT, WHILE SAID OLEFINIC POLYMER IS IN AQUEOUS SUSPENSION AND IN ADMIXTURE WITH ABOUT 10 TO 67%, CALCULATED ON THE WEIGHT OF SAID LAST-NAMED MIXTURE OF SAID BASE POLYMER, AT LEAST 5 PERCENT BY WEIGHT OF THE CHLORINE HAVING BEEN INCORPORATED INTO SAID HIGH MOLECULAR WEIGHT OLEFINIC POLYMER AT A TEMPERATURE IN THE RANGE OF 90 TO 150*C.
Claim 2
Dependent Claim
175 words
A COMPOSITION OF MATTER CONSISTING OF (1) 10 TO 95% BY WEIGHT OF A BASE POLYMER OF THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND COPOLYMERS OF VINYL CHLORIDE WITH UP TO 50 PERCENT BY WEIGHT OF A COMONOMER SELECTED FROM THE GROUP CONSISTING OF VINY ESTERS, VINYLIDENE CHLORIDE AND ESTERS OF ACRYLIC, METHACRYLIC, MALEIC AND FUMARIC ACIDS WITH ALIPHATIC, SATURATED, MONOHYDRIC ALCOHOLS OF ONE TO TEN CARBON ATOMS, IN INTIMATE ADMIXTURE WITH (2) 90 TO 5% BY WEIGHT OF A CHLORINATION PRODUCT PREPARED BY CHLORINATING A HIGH MOLECULAR WEIGHT OLEFINIC POLYMER OF THE GROUP CONSISTING OF HOMOPOLYMERS OF OLEFINS AND COPOLYMERS OF OLEFINS WITH ONE ANOTHER TO A CHLORINE CONTENT OF ABOUT 20 TO 50 PERCENT BY WEIGHT, WHILE SAID OLEFINIC POLYMER IS IN AQUEOUS SUSPENSION AND IN ADMIXTURE WITH ABOUT 10 TO 67%, CALCULATED ON THE WEIGHT OF SAID LAST-NAMED MIXTURE OF SAID BASE POLYMER, AT LEAST 5 PERCENT BY WEIGHT OF THE CHLORINE HAVING BEEN INCORPORATED INTO SAID HIGH MOLECULAR WEIGHT OLEFINIC POLYMER AT A TEMPERATURE IN THE RANGE OF 90 TO 150*C.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |