Patent US3882192A successfully refreshed from Google Patents.
US3882192A
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Polycarbonate-polyvinyl chloride moulding compositions
Assignee: Bayer AG
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Filing: 1974-01-28
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Granted: 1975-05-06
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Expires: 1994-01-28
Abstract
Abstract Moulding compositions consisting of A. 5 - 95 PARTS BY WEIGHT OF A POLYCARBONATE, B. 5 - 95 PARTS BY WEIGHT OF A VINYL CHLORIDE POLYMER AND C. 5 - 95 PARTS BY WEIGHT OF AN ABS graft polymer, a styrene/maleic anhydride copolymer or an ethylene/vinyl acetate copolymer.
Inventors
- 👤 Salah Elabd Elghani
- 👤 Winfried Fischer
- 👤 Michael Koehler
- 👤 Johannes Lindner
- 👤 Richard Prinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:32
CPC Classifications
C; C08; C08L; C08L35/00; C08L35/06; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L27/22; C08L27/24; C08L55/00; C08L55/02; C08L69/00; C08L23/0846; C08L23/0853
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
131 words
A MOULDING COMPOSITION CONSISTING ESSENTIALLY OF A. 5 TO 95 PARTS BY WEIGHT OF A POLYCARBONATE OF A DIHYDRIC PHENOL AND A DERIVATIVE OF CARBONIC ACID, B. 5 TO 95 PARTS BY WEIGHT OF A VINYL CHLORIDE POLYMER CONTAINING AT LEAST 80 PARTS BY WEIGHT OF A GRAFT COPOLYMER OBTAIN 5 TO 95 PARTS BY WEIGHT OF A GRAFT COPOLYMER OBTAINED BY POLYMERIZING A MONOMER MIXTUREE OF STYRENE, AN ALKYL STYRENE, METHYL METHACRYLATE, OR A MIXTURE THEREOF WITH ACRULONITRILE, AN ALKYL ACRYLONITRILE, METHYL METHACRYLATE OR A MIXTURE THEREOF IN THE PRESENCE OF A RUBBER SELECTED FROM THE GROUP CONSISTING OF DIENE POLYMERS AND ETHYLENE-PROPYLENE-NON-CONJUGATED DIENE TERPOLYMERS, A COPOLYMER OF STYRENE AND MALEIC ANHYDRIDE OR A COPOLYMER OF ETHYLENE AND VINYL ACETATE CONTAINING 1 TO 80 PERCENT BY WEIGHT OF VINYL ACETATE.
Claim 2
Dependent Claim
131 words
A MOULDING COMPOSITION CONSISTING ESSENTIALLY OF A. 5 TO 95 PARTS BY WEIGHT OF A POLYCARBONATE OF A DIHYDRIC PHENOL AND A DERIVATIVE OF CARBONIC ACID, B. 5 TO 95 PARTS BY WEIGHT OF A VINYL CHLORIDE POLYMER CONTAINING AT LEAST 80 PARTS BY WEIGHT OF A GRAFT COPOLYMER OBTAIN 5 TO 95 PARTS BY WEIGHT OF A GRAFT COPOLYMER OBTAINED BY POLYMERIZING A MONOMER MIXTUREE OF STYRENE, AN ALKYL STYRENE, METHYL METHACRYLATE, OR A MIXTURE THEREOF WITH ACRULONITRILE, AN ALKYL ACRYLONITRILE, METHYL METHACRYLATE OR A MIXTURE THEREOF IN THE PRESENCE OF A RUBBER SELECTED FROM THE GROUP CONSISTING OF DIENE POLYMERS AND ETHYLENE-PROPYLENE-NON-CONJUGATED DIENE TERPOLYMERS, A COPOLYMER OF STYRENE AND MALEIC ANHYDRIDE OR A COPOLYMER OF ETHYLENE AND VINYL ACETATE CONTAINING 1 TO 80 PERCENT BY WEIGHT OF VINYL ACETATE.
Claim 3
Dependent Claim
22 words
The moulding composition of claim 1 consisting essentially of 20 to 80 parts by weight of each of (a), (b) and (c).
Claim 4
Dependent Claim
22 words
The moulding composition of claim 1 consisting essentially of 30 to 50 parts by weight of each of (a), (b) and (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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |