Patent US4774286A successfully refreshed from Google Patents.
US4774286A
Expired / Lapsed
US
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Thermoplastic molding materials based on polycarbonates and polyesters
Assignee: BASF SE
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Filing: 1987-01-12
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Granted: 1988-09-27
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Expires: 2007-01-12
Abstract
Abstract Thermoplastic molding materials based on (A) polycarbonates and (B) polyesters containing from 1 to 30% by weight, based on (A)+(B)+(C), (C) of a graft copolymer based on (C 1 ) from 60 to 99% by weight of an elastomeric component based on acrylic acid esters, methacrylic acid esters and/or conjugated dienes as well as, if desired, further comonomers, as graft base and (C 2 ) from 1 to 40% by weight of an expoxy-containing monomer as applied graft.
Inventors
- 👤 Christof Taubitz
- 👤 Hans-Henning Hub
- 👤 Konrad Mitulla
- 👤 Manfred Knoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:04
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08L69/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
117 words
A thermoplastic molding material containing as essential components: (A) an aromatic polycarbonate derived from diphenols; (B) an aromatic polyester derived from dicarboxylic acids or their ester forming derivatives and dihydroxy components; and (C) from 1 to 30% by weight, based on (A)+(B)+(C), of a graft copolymer consisting of as essential components: (C1) from 60 to 99% by weight of an elastomeric component based on at least one member selected from the group consisting of acrylic acid esters, methacrylic acid esters and conjugated diene compounds, as essential components, which functions as a graft base, and (C 2 ) from 1 to 40% by weight of an epoxy-containing monomer as an applied graft shell onto component C 1 .
Claim 2
Dependent Claim
117 words
A thermoplastic molding material containing as essential components: (A) an aromatic polycarbonate derived from diphenols; (B) an aromatic polyester derived from dicarboxylic acids or their ester forming derivatives and dihydroxy components; and (C) from 1 to 30% by weight, based on (A)+(B)+(C), of a graft copolymer consisting of as essential components: (C1) from 60 to 99% by weight of an elastomeric component based on at least one member selected from the group consisting of acrylic acid esters, methacrylic acid esters and conjugated diene compounds, as essential components, which functions as a graft base, and (C 2 ) from 1 to 40% by weight of an epoxy-containing monomer as an applied graft shell onto component C 1 .
Claim 3
Dependent Claim
16 words
The thermoplastic molding material as defined in claim 1, which contains an impact strength modifier rubber.
Claim 4
Dependent Claim
40 words
The thermoplastic molding material as defined in claim 1, which contains from 8 to 90% by weight of polycarbonate (A), from 8 to 90% by weight of polyester (B) and from 2 to 30% by weight of graft copolymer (C).
Claim 5
Dependent Claim
13 words
A molding obtainable from a thermoplastic molding material as defined in claim 1.
Claim 6
Dependent Claim
18 words
The thermoplastic molding material as defined in claim 1, wherein further comonomers are present in said graft base.
Claim 7
Dependent Claim
21 words
The thermoplastic molding material as defined in claim 5, wherein said comonomer is styrene or a mixture of styrene and acrylonitrile.
Claim 8
Dependent Claim
25 words
The thermoplastic molding material as defined in claim I, wherein the diphenol component of component (A) is a dihydroxybiphenyl, a di (hydroxyphenyl)alkane or a di(hydoxyphenyl)ether.
Claim 9
Dependent Claim
25 words
The thermoplastic molding material as defined in claim 1, wherein the amount of said graft copolymer (C) in said composition ranges from 2-20% by weight.
Claim 10
Dependent Claim
31 words
The thermoplastic molding material as defined in claim 1, wherein said epoxy-containing monomer is a member selected from the group consisting of glycidylacrylic acid esters, glycidylmethacrylic acid esters and mixtures thereof.
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) | 1991-09-27 | 1992-03-28 | 1992-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-27 | 1996-03-28 | 1996-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-27 | 2000-03-28 | 2000-09-27 | $7700.00 | Window Closed / Lapsed |