US3910867A
Expired / Lapsed
US
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Shaped structures of acrylonitrile polymers with permanent antistatic properties
Assignee: Bayer AG
•
Filing: 1974-09-06
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Granted: 1975-10-07
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Expires: 1994-09-06
Abstract
Abstract The invention relates to acrylonitrile polymers which contain as an antistatic additive at least one compound of the general formula D R A W I N G
Inventors
- 👤 Francis Bentz
- 👤 Gunther Nischk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:39
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/18; C08L33/20; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
51 words
A SHAPED STRUCTURE OF AN ACRYLONITRILE POLYMER CONSISTING OF FROM 85 TO 99.5%, BY WEIGHT, OF POLYACRYLONITRILE OR AN ACRYLONITRILE COPOLYMER CONTAINING AT LEAST 60% OF COPOLYMERISED ACRYLONITRILE COMPRISING AS AN ANTISTATIC ADDITIVE FROM 0.5 TO 15%, BY WEIGHT OF A POLYETHER DIURETHANE UREA COMPOUND OF THE FOLLOWING GENERAL FORMULA I
Claim 2
Dependent Claim
51 words
A SHAPED STRUCTURE OF AN ACRYLONITRILE POLYMER CONSISTING OF FROM 85 TO 99.5%, BY WEIGHT, OF POLYACRYLONITRILE OR AN ACRYLONITRILE COPOLYMER CONTAINING AT LEAST 60% OF COPOLYMERISED ACRYLONITRILE COMPRISING AS AN ANTISTATIC ADDITIVE FROM 0.5 TO 15%, BY WEIGHT OF A POLYETHER DIURETHANE UREA COMPOUND OF THE FOLLOWING GENERAL FORMULA I
Claim 3
Dependent Claim
16 words
The shaped structure of claim 1, wherein in the general formula (I) the group R'' represents
Claim 4
Dependent Claim
16 words
The shaped structure of claim 1, wherein in the general formula (I) the group R'' represents
Claim 5
Dependent Claim
42 words
A process for the production of a shaped structure of an acrylonitrile polymer with antistatic additives which comprises addition of from 0.5 to 15%, by weight, (based on the polymer mixture), of a polyether diurethane urea compound corresponding to general formula I
Claim 6
Dependent Claim
42 words
A process for the production of a shaped structure of an acrylonitrile polymer with antistatic additives which comprises addition of from 0.5 to 15%, by weight, (based on the polymer mixture), of a polyether diurethane urea compound corresponding to general formula I
References Cited (Backward Citations)
US3856738A
Cited
US3852255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |