US3084992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of shaped structures from acrolein polymers
Assignee: Hoechst AG
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Filing: 1960-07-14
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Granted: 1963-04-09
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Expires: 1980-07-14
Abstract
No abstract record available.
Inventors
- 👤 Schlack Paul
- 👤 Goltner Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:05
CPC Classifications
C; C08; C08G; C08G2/00; C08G2/06; C08F; C08F20/00; C08F20/62; C08F220/00; C08F220/02; C08F220/42; C08F220/44; C08F8/00; C08F8/34; C08F8/36; C08G2/18; C08G2/26; C08G2/28; D; D01; D01F; D01F6/00; D01F6/28; D01F6/34; C08F2800/00; C08F2800/20; Y; Y10; Y10S; Y10S264/00; Y10S264/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR THE MANUFACTURE OF SHAPED STRUCTURES FROM COPOLYMERS OF ACROLEIN, WHICH COMPRISES SHAPING AN AQUEOUS SOLUTION OF AN ADDUCT CONSISTING OF SULFUR DIOXIDE, ADDITIVELY COMBINED WITH A COPOLYMER OF ACROLEIN AND AT LEAST 30% BY WEIGHT OF A DERIVATIVE OF ACRYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, ALKYL ESTERS OF ACRYLIC ACID, AND ALKYL AMIDES OF ACRYLIC ACID, AND STRETCHING THE SHAPED STRUCTURES SO OBTAINED AT A TEMPERATURE WITHIN THE RANGE OF 50 TO 200* C. AFTER THE WATER HAS BEEN REMOVED BY EVAPORATION.
Claim 2
Dependent Claim
88 words
A PROCESS FOR THE MANUFACTURE OF SHAPED STRUCTURES FROM COPOLYMERS OF ACROLEIN, WHICH COMPRISES SHAPING AN AQUEOUS SOLUTION OF AN ADDUCT CONSISTING OF SULFUR DIOXIDE, ADDITIVELY COMBINED WITH A COPOLYMER OF ACROLEIN AND AT LEAST 30% BY WEIGHT OF A DERIVATIVE OF ACRYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, ALKYL ESTERS OF ACRYLIC ACID, AND ALKYL AMIDES OF ACRYLIC ACID, AND STRETCHING THE SHAPED STRUCTURES SO OBTAINED AT A TEMPERATURE WITHIN THE RANGE OF 50 TO 200* C. AFTER THE WATER HAS BEEN REMOVED BY EVAPORATION.
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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |