US4603170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moulding compositions comprising an aromatic polycarbonate and a sulfone group containing polyester
Assignee: Bayer AG
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Filing: 1985-08-23
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Granted: 1986-07-29
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Expires: 2005-08-23
Abstract
Abstract Thermoplastic moulding compounds obtained from: from 98 to 10 parts, by weight, of aromatic polycarbonates having an average molecular weight Mw (by light scattering) of from 10,000 to 200,000; from 60 to 0 parts, by weight, of polyalkylene terephthalate; from 30 to 0 parts, by weight, of graft polymer of one or more ethylenically unsaturated monomers on a rubber; and from 90 to 2 parts, by weight, of a polyester of terephthalic acid and a diol containing at least one diaryl sulphone group in the molecule and, optionally, an aliphatic diol in addition.
Inventors
- 👤 Mark W. Witman
- 👤 Wolfgang Stix
- 👤 Karl-Heinz Kohler
- 👤 Leo Morbitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:02
CPC Classifications
C; C08; C08L; C08L69/00; C08L67/00; C08L67/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
95 words
A thermoplastic moulding composition which comprises: (A) from 98 to 10 parts, by weight, of one or more aromatic polycarbonates having an average molecular weight M w (determined by light scattering) of from 10,000 to 200,000; (B) from 60 to 0 parts, by weight, of one or more polyalkylene terephthalates; (C) from 30 to 0 parts, by weight, of one or more ethylenically-unsaturated monomers grafted on one or more rubbers; and (D) from 90 to 2 parts, by weight, of one or more polyesters of terephthalic acid and one or more diaryl sulphone group-containing diols.
Claim 2
Dependent Claim
95 words
A thermoplastic moulding composition which comprises: (A) from 98 to 10 parts, by weight, of one or more aromatic polycarbonates having an average molecular weight M w (determined by light scattering) of from 10,000 to 200,000; (B) from 60 to 0 parts, by weight, of one or more polyalkylene terephthalates; (C) from 30 to 0 parts, by weight, of one or more ethylenically-unsaturated monomers grafted on one or more rubbers; and (D) from 90 to 2 parts, by weight, of one or more polyesters of terephthalic acid and one or more diaryl sulphone group-containing diols.
Claim 3
Dependent Claim
86 words
A composition as claimed in claim 1 wherein (D) incorporates a diol component of the formula ##STR8## wherein R 1 independently represents ##STR9## or a polyalkyl ether group; --(CH 2 --CH 2 --O--) x , --(CH 2 --CH 2 --CH 2 --O--) x or --(CH 2 --CH 2 --CH 2 --CH 2 --O--) x with x=2 to 10, R 2 independently represents C 1 -C 4 alkyl or halogen; n represents 0, 1, 2, 3 or 4; and m and p each independently represents an integer.
Claim 4
Dependent Claim
42 words
A composition as claimed in claim 1 or claim 2 wherein (D) comprises a diol component of the formula: ##STR10## wherein X represents ##STR11## or a single bond; or which is a polyether sulphone or a polysulphone having aliphatic hydroxyl end groups.
Claim 5
Dependent Claim
20 words
A composition as claimed in claim 1 or claim 2 wherein component (D) additionally contains one or more aliphatic diols.
Claim 6
Dependent Claim
17 words
A composition as claimed in claim 3 wherein component (D) additionally contains one or more aliphatic diols.
References Cited (Backward Citations)
US4110315A
Cited
US4510289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |