US4742104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic moulding compositions based on polycarbonate/graft polymer mixtures
Assignee: Bayer AG
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Filing: 1986-12-29
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Granted: 1988-05-03
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Expires: 2006-12-29
Abstract
Abstract The present invention relates to thermoplastic moulding compositions containing thermoplastic polycarbonates, graft polymers, rubber-free copolymers and, if appropriate, copolymeric rubbers, and also, if appropriate, conventional additives, which are characterized in that the rubber-free copolymers contain internal epoxide compounds.
Inventors
- 👤 Christian Lindner
- 👤 Otto Koch
- 👤 Hans-Jurgen Kress
- 👤 Horst Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:50
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/04; C08L69/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
148 words
A thermoplastic molding composition consisting essentially of (A) 10 to 80 parts by weight of an aromatic thermoplastic polycarbonate, (B) 10 to 60 parts by weight of a graft polymer of ethylenically unsaturated monmers grafted onto a rubber, with a rubber content of 5 to 80% by weight, based on the weight of component (B), and (C) 10 to 60 parts by weight of at least one terpolymer of (i) styrene, a-methylstyrene, a halogenostyrene, a ring-substituted C 1 -C 5 -alkylstyrene, or a mixture thereof with (ii) acrylonitrile, methacrylonitrile, or a mixture of both with (iii) 0.05 to 5% by weight, based on the total weight of component (C), of an ethylenically unsaturated copolymerized epoxide comound, in which the weight ratio of the monomers of (i) to those of (ii) is between 90:10 and 50:50 and the sum of (A), (B) and (C) being 100 parts by weight.
Claim 2
Dependent Claim
148 words
A thermoplastic molding composition consisting essentially of (A) 10 to 80 parts by weight of an aromatic thermoplastic polycarbonate, (B) 10 to 60 parts by weight of a graft polymer of ethylenically unsaturated monmers grafted onto a rubber, with a rubber content of 5 to 80% by weight, based on the weight of component (B), and (C) 10 to 60 parts by weight of at least one terpolymer of (i) styrene, a-methylstyrene, a halogenostyrene, a ring-substituted C 1 -C 5 -alkylstyrene, or a mixture thereof with (ii) acrylonitrile, methacrylonitrile, or a mixture of both with (iii) 0.05 to 5% by weight, based on the total weight of component (C), of an ethylenically unsaturated copolymerized epoxide comound, in which the weight ratio of the monomers of (i) to those of (ii) is between 90:10 and 50:50 and the sum of (A), (B) and (C) being 100 parts by weight.
Claim 3
Dependent Claim
34 words
A moulding composition according to claim 1 wherein at least one polymer of component C contains 0.1 to 3% by weight of the copolymerized epoxide compound, based on the total weight of component C.
Claim 4
Dependent Claim
25 words
A moulding composition according to claim 1 wherein the weight ratio of the monomers of (i) to those of (ii) is between 80:20 and 65:35.
Claim 5
Dependent Claim
20 words
A moulding composition according to claim 1 wherein the ethylenically unsaturated, copolymerized epoxide compound in component C is glycidyl (meth)acrylate.
Claim 6
Dependent Claim
28 words
A moulding composition according to claim 1 having a halogen content of 0.5% by weight of 8% by weight, based on the total weight of the moulding composition.
Claim 7
Dependent Claim
35 words
A moulding composition according to claim 5 which additionally contains 0.5 to 5% by weight of Sb 2 O 3 , based on the total weight of components A+B+C+Sb 2 O 3 and halogen compound.
Claim 8
Dependent Claim
28 words
A moulding composition according to claim 1 additionally containing at least one extra component selected from the group consisting of pigments, lubricants, antistatic agents, plasticizers, dyestuffs and fillers.
Claim 9
Dependent Claim
20 words
A thermoplastic moulding composition according to claim 1 wherein component (C) (i) is styrene and component (C) (ii) is acrylonitrile.
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) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |