US4369136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly(aryl ether) containing blends
Assignee: BP Corp North America Inc
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Filing: 1980-03-31
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Granted: 1983-01-18
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Expires: 2000-03-31
Abstract
Abstract Described herein are molding compositions comprising a blend of a poly(aryl ether), a polyester and a compatibilizing amount of an aromatic polycarbonate. These compositions are especially suited for molding articles useful in electrical applications.
Inventors
- 👤 Lloyd M. Robeson
- 👤 William D. Claus, Jr.
- 👤 Harvey L. Batleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:40
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: 32
Claim 1
Independent Claim
104 words
A molding composition comprising: (a) from about 20 to about 90 weight percent of a poly(aryl ether) having recurring units of the formula: O--E--O--E'-- wherein E is the residuum of a dihydric phenol and E' is the residuum of a 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 carbon atoms, (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 2
Dependent Claim
104 words
A molding composition comprising: (a) from about 20 to about 90 weight percent of a poly(aryl ether) having recurring units of the formula: O--E--O--E'-- wherein E is the residuum of a dihydric phenol and E' is the residuum of a 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 carbon atoms, (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 3
Dependent Claim
117 words
A molding composition comprising: (a) from about 20 to about 90 weight percent of a poly(aryl ether) having recurring units of the formula: O--E--O--E'-- wherein E is the residuum of a dihydric phenol and E' is the residuum of a 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 carbon atoms, (b) from about 10 to about 60 weight percent of a polyester, (c) from about 1 to about 25 weight percent of an aromatic polycarbonate, and (d) from about 15 to about 30 weight percent of a fiber reinforcement.
Claim 4
Dependent Claim
117 words
A molding composition comprising: (a) from about 20 to about 90 weight percent of a poly(aryl ether) having recurring units of the formula: O--E--O--E'-- wherein E is the residuum of a dihydric phenol and E' is the residuum of a 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 carbon atoms, (b) from about 10 to about 60 weight percent of a polyester, (c) from about 1 to about 25 weight percent of an aromatic polycarbonate, and (d) from about 15 to about 30 weight percent of a fiber reinforcement.
Claim 5
Dependent Claim
54 words
A molding composition comprising a poly(aryl ether), a polyester, a compatibilizing amount of an aromatic polycarbonate and 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 10,000 psi.
Claim 6
Dependent Claim
54 words
A molding composition comprising a poly(aryl ether), a polyester, a compatibilizing amount of an aromatic polycarbonate and 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 10,000 psi.
Claim 7
Dependent Claim
81 words
A molding composition comprising: (a) a poly(aryl ether) having recurring units of the formula O--E--O--E'-- wherein E is the residuum of a dihydric phenol and E' is the residuum of a 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 residium are valently bonded to the ether oxygens through aromatic carbon atoms, (b) a polyester, and (c) a compatibilizing amount of an aromatic polycarbonate.
Claim 8
Dependent Claim
81 words
A molding composition comprising: (a) a poly(aryl ether) having recurring units of the formula O--E--O--E'-- wherein E is the residuum of a dihydric phenol and E' is the residuum of a 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 residium are valently bonded to the ether oxygens through aromatic carbon atoms, (b) a polyester, and (c) a compatibilizing amount of an aromatic polycarbonate.
Claim 9
Dependent Claim
19 words
A molding composition as defined in claim 4 wherein the poly(aryl ether) has repeating units of the formula: ##STR21##
Claim 10
Dependent Claim
19 words
A molding composition as defined in claim 4 wherein the poly(aryl ether) has repeating units of the formula: ##STR22##
Claim 11
Dependent Claim
19 words
A molding composition as defined in claim 4 wherein the poly(aryl ether) has repeating units of the formula: ##STR23##
Claim 12
Dependent Claim
29 words
A molding composition as defined in claim 4 wherein the polyester has repeating units of the general formula: ##STR24## wherein n is an integer of from 2 to 4.
Claim 13
Dependent Claim
14 words
A molding composition as defined in claim 8 wherein the polyester is poly(ethylene terephthalate).
Claim 14
Dependent Claim
14 words
A molding composition as defined in claim 8 wherein the polyester is poly(butylene terephthalate).
Claim 15
Dependent Claim
25 words
A molding composition as defined in claim 4 wherein the polycarbonate is prepared from the reaction product of a dihydric phenol and a carbonate precursor.
Claim 16
Dependent Claim
21 words
A molding composition as defined in claim 11 wherein the dihydric phenol is bisphenol-A and the carbonate precursor is carbonyl chloride.
Claim 17
Dependent Claim
24 words
A molding composition as in claim 4 wherein the poly(aryl ether) is used in amounts of from about 20 to about 90 weight percent.
Claim 18
Dependent Claim
23 words
A molding composition as in claim 4 wherein the polyester is used in amounts of from about 10 to about 60 weight percent.
Claim 19
Dependent Claim
23 words
A molding composition as in claim 4 wherein the polycarbonate is used in amounts of from about 1 to about 25 weight percent.
Claim 20
Dependent Claim
46 words
A molding composition as in claim 4 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 21
Dependent Claim
46 words
A molding composition as in claim 16 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 22
Dependent Claim
11 words
A molding composition as in claim 4 which contains fiber reinforcement.
Claim 23
Dependent Claim
16 words
A molding composition as in claim 18 wherein the fiber reinforcement is fiberglass or carbon fibers.
Claim 24
Dependent Claim
13 words
A molding composition as in claim 4 which contains an inorganic particulate filler.
Claim 25
Dependent Claim
12 words
A molding composition as in claim 20 wherein the filler is wollastonite.
Claim 26
Dependent Claim
16 words
A molding composition as in claim 4 which contains fiber reinforcement and an inorganic particulate filler.
Claim 27
Dependent Claim
13 words
A molding composition as in claim 4 which contains a flame retardant additive.
Claim 28
Dependent Claim
15 words
A molding composition as in claim 23 wherein the flame retardant additive is decabromodiphenyl oxide.
Claim 29
Dependent Claim
55 words
A molding composition as in claim 1 which 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 30
Dependent Claim
22 words
A molding composition as in claim 2 which contains from about 2 to about 10 weight percent of a flame retardant additive.
Claim 31
Dependent Claim
14 words
An article molded from the composition of claims 4, 1, 2, 3 or 25.
Claim 32
Dependent Claim
15 words
An electrical connector molded from the composition of claims 4, 1, 2, 3 or 25.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-17 | 1986-07-19 | 1987-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-17 | 1990-07-19 | 1991-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-17 | 1994-07-19 | 1995-01-18 | $7700.00 | Window Closed / Lapsed |