EP0037547A1
Expired / Lapsed
EP
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Molding compositions and articles molded therefrom
Assignee: BP Corp North America Inc
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Filing: 1981-03-30
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Granted: —
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Expires: 2001-03-30
Abstract
Abstract A molding composition comprising a blend of a poly (aryl ether), a polyester and a compatibilizing amount of an aromatic polycarbonate. The composition can additionally contain one or more of the following: fiber reinforcement, inorganic particulate filler, impact modifier, or a flame retardant additive. These compositions are especially suited for molding articles useful in electrical applications.
Inventors
- 👤 Lloyd Mahlon Robeson
- 👤 William Davenport Claus, Jr.
- 👤 Harvey Lionel Batleman
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 14:58
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/24; C; C08; C08L; C08L67/00; C08L67/02; C08L71/00; C08L81/00; C08L81/06; C08L69/00; Y; Y10; Y10S; Y10S525/00; Y10S525/906
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
17 words
A molding composition comprising a poly-(aryl ether), a polyester and a compatibilizing amount of an aromatic polycarbonate.
Claim 2
Dependent Claim
17 words
A molding composition comprising a poly-(aryl ether), a polyester and a compatibilizing amount of an aromatic polycarbonate.
Claim 3
Dependent Claim
72 words
A molding composition according to claim 1 wherein the poly (aryl ether) has recurring units of the formula: wherein E is the Tesiduum, of the dihydric phenol and E' is the residum of the benzenoid compound having an inert electron withdrawing group in at least one of the positions ortho and para to the valence bonds wherein both of said residuum are valently bonded to the ether oxygens through aromatic carboa atoms.
Claim 4
Dependent Claim
20 words
A molding composition according to claim 1 wherein the poly (aryl ether) has repeating units of the formulae: or or
Claim 5
Dependent Claim
31 words
A molding composition according to any of claims 1 - 3 wherein the polyester has repeating units of the general formula: wherein n is an integer of from 2 to 4.
Claim 6
Dependent Claim
15 words
A molding composition according to claim 4 wherein the polyester is poly(ethylene terephthalate)or poly(butylene terephthalate).
Claim 7
Dependent Claim
28 words
A molding composition according to any of claims 1 - 5 wherein the polycarbonate is prepared from the reaction product of a dihydric phenol and a carbonate precursor.
Claim 8
Dependent Claim
20 words
A molding composition according to claim 6 wherein the dihydric phenol is bisphenol-A and the carbonate precursor is carbonyl chloride.
Claim 9
Dependent Claim
50 words
A molding composition according to any of claims 1 - 7 which contains an impact modifier which is a graft copolymer of a vinyl aromatic, an acrylate, an unsaturated nitrile, or mixtures thereof, grafted onto an unsaturated elastomeric backbone and having a tensile modulus of less than about 100,000 psi.
Claim 10
Dependent Claim
46 words
A molding composition according to claim 8 which contains an impact modifier which is a graft copolymer of a vinyl aromatic, an acrylate, an unsaturated nitrile, or mixtures thereof, grafted onto an acrylate elastomeric backbone and having a tensile modulus of less than about 100,000 psi.
Claim 11
Dependent Claim
25 words
A molding composition according to any of claims 1 - 9 which contains fiber reinforcement and/or an inorganic particulate filler and/or a flame retardant additive.
Claim 12
Dependent Claim
28 words
A molding composition according to claim 10 wherein the fiber reinforcement is fiberglass or carbon fibers, the filler is wollastonite and the flame retardant additive is decabromodiphenyl oxide.
Claim 13
Dependent Claim
52 words
A molding composition according to any of claims 1 - 11 comprising: (a) from about 20 to about 90 weight percent of a poly (aryl ether), (b) from about 10 to about 60 weight percent of a polyester, and (c) from about 1 to about 25 weight percent of an aromatic polycarbonate.
Claim 14
Dependent Claim
56 words
A molding composition according to claim 12 which additionally contains from about 3 to about 15 weight percent of an impact modifier which is a graft copolymer of a vinyl aromatic, an acrylate, an unsaturated nitrile, or mixtures thereof, grafted onto an unsaturated elastomeric backbone and having a tensile modulus of less than about 100,000 psi.
Claim 15
Dependent Claim
24 words
A molding composition according to claim 12 or 13 which additionally contains from about 15 to about 30 weight percent of a fiber reinforcement.
Claim 16
Dependent Claim
27 words
A molding composition according to any of claims 12 - 14 which additionally contains from about 2 to about 10 weight percent of a flame retardant additive.
Claim 17
Dependent Claim
13 words
An article molded from the composition of any of claims 1 - 15.
Claim 18
Dependent Claim
14 words
An electrical connector molded from the composition of any of claims 1 - 15.
References Cited (Backward Citations)
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