US3981841A
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Blends of a polyphenylene ether resin, alkenyl aromatic resins modified with EPDM rubber and graft polymerized high rubber content polymers
Assignee: General Electric Co
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Filing: 1974-02-15
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Granted: 1976-09-21
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Expires: 1994-02-15
Abstract
Abstract Novel thermoplastic compositions are disclosed which include a polyphenylene ether resin, an alkenyl aromatic resin modified with an EPDM rubber and an emulsion graft copolymer of an alkenyl aromatic resin and a rubbery interpolymer of a mixture of monoolefins and a polyene; or a graft polymerization product of an acrylic monomer alone or in admixture with styrene and a rubbery diene polymer or styrenediene copolymer. Also included with the scope of this invention are reinforced and flame-retardant compositions of said thermoplastic materials.
Inventors
- 👤 Visvaldis Abolins
- 👤 Glenn D. Cooper
- 👤 Gim F. Lee, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:17
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/003; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
156 words
A thermoplastic molding composition which comprises: a. from 20-65% by weight of a polyphenylene ether resin; b. from 25-70% by weight of an alkenyl aromatic resin that is modified with from 5 to 20% by weight of a rubbery interpolymer which comprises 10-90 mole percent of ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms and from 0.1-10 mole percent of a polyene that is a non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms; and c. from 5-20% by weight of an emulsion graft copolymer of from 40-70 parts by weight of an alkenyl aromatic resin and from 30 to 60 parts by weight of a rubbery interpolymer which comprises 10-90 mole percent of ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms and from 0.1-10 mole percent of a polyene that is a non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms.
Claim 2
Dependent Claim
156 words
A thermoplastic molding composition which comprises: a. from 20-65% by weight of a polyphenylene ether resin; b. from 25-70% by weight of an alkenyl aromatic resin that is modified with from 5 to 20% by weight of a rubbery interpolymer which comprises 10-90 mole percent of ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms and from 0.1-10 mole percent of a polyene that is a non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms; and c. from 5-20% by weight of an emulsion graft copolymer of from 40-70 parts by weight of an alkenyl aromatic resin and from 30 to 60 parts by weight of a rubbery interpolymer which comprises 10-90 mole percent of ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms and from 0.1-10 mole percent of a polyene that is a non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms.
Claim 3
Dependent Claim
14 words
The molding composition of claim 1 wherein the alkenyl aromatic resin is styrene resin.
Claim 4
Dependent Claim
27 words
The molding composition of claim 2 wherein said rubbery interpolymer comprises 10-90 mole percent of ethylene 10-90 mole percent of propylene and 0.1-10 mole percent of 5-ethylidene-2-norbornene.
Claim 5
Dependent Claim
14 words
The molding composition of claim 3 wherein the polyphenylene ether resin is poly-(2,6-dimethyl-1,4-phenylene) ether.
Claim 6
Dependent Claim
161 words
A thermoplastic molding composition which comprises: a. from 20-65% by weight of a polyphenylene ether resin; b. from 25-70% by weight of an alkenyl aromatic resin that is modified with from 5 to 20% by weight of a rubbery interpolymer which comprises 10-90 mole percent of ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms, and from 0.1-10 mole percent of a polyene that is a non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms; c. from 5-20% by weight of an emulsion graft copolymer of from 40-70 parts by weight of an alkenyl aromatic resin and from 30-60 parts by weight of a rubbery interpolymer which comprises 10-90 mole percent of ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms and from 0.1-10 mole percent of a polyene that is non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms; and d. a reinforcing amount of a reinforcing filler.
Claim 7
Dependent Claim
161 words
A thermoplastic molding composition which comprises: a. from 20-65% by weight of a polyphenylene ether resin; b. from 25-70% by weight of an alkenyl aromatic resin that is modified with from 5 to 20% by weight of a rubbery interpolymer which comprises 10-90 mole percent of ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms, and from 0.1-10 mole percent of a polyene that is a non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms; c. from 5-20% by weight of an emulsion graft copolymer of from 40-70 parts by weight of an alkenyl aromatic resin and from 30-60 parts by weight of a rubbery interpolymer which comprises 10-90 mole percent of ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms and from 0.1-10 mole percent of a polyene that is non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms; and d. a reinforcing amount of a reinforcing filler.
Claim 8
Dependent Claim
25 words
The molding composition of claim 5 wherein said reinforcing filler comprises from 10-80% of fibrous glass filaments, based on the total weight of the composition.
Claim 9
Dependent Claim
14 words
The molding composition of claim 6 wherein said polyphenylene ether resin is poly-(2,6-dimethyl-1,4-phenylene) ether.
Claim 10
Dependent Claim
161 words
A thermoplastic molding composition which comprises: a. from 20-65% by weight of a polyphenylene ether resin; b. from 25-70% by weight of an alkenyl aromatic resin that is modified with from 5 to 20% by weight of a rubbery interpolymer which comprises 10-90 mole percent ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms and from 0.1-10 mole percent of a polyene that is a non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms; c. from 5-20% by weight of an emulsion graft copolymer of from 40-70 parts by weight of an alkenyl aromatic resin and from 30-60 parts by weight of a rubbery interpolymer which comprises 10-90 mole percent of ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms and from 0.1-10 mole percent of a polyene that is non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms; and d. a flame retardant amount of a flame-retardant additive.
Claim 11
Dependent Claim
161 words
A thermoplastic molding composition which comprises: a. from 20-65% by weight of a polyphenylene ether resin; b. from 25-70% by weight of an alkenyl aromatic resin that is modified with from 5 to 20% by weight of a rubbery interpolymer which comprises 10-90 mole percent ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms and from 0.1-10 mole percent of a polyene that is a non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms; c. from 5-20% by weight of an emulsion graft copolymer of from 40-70 parts by weight of an alkenyl aromatic resin and from 30-60 parts by weight of a rubbery interpolymer which comprises 10-90 mole percent of ethylene, 10-90 mole percent of an alpha olefin having from 3-10 carbon atoms and from 0.1-10 mole percent of a polyene that is non-conjugated cyclic or open-chain diene that has from 5-10 carbon atoms; and d. a flame retardant amount of a flame-retardant additive.
Claim 12
Dependent Claim
46 words
The molding composition of claim 8 wherein said flame retardant is a halogenated organic compound, a halogenated organic compound in admixture with an antimony compound, elemental phosphorus or a phosphorus compound or compounds containing phosphorus-nitrogen bonds or a mixture of two or more of the foregoing.
Claim 13
Dependent Claim
22 words
The molding composition of claim 8 wherein said flame retardant comprises a mixture of an organic bromine containing compound with antimony oxide.
Claim 14
Dependent Claim
12 words
The molding composition of claim 8 wherein said flame retardant is triphenylphosphate.
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) | 1979-09-21 | 1980-03-22 | 1980-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-21 | 1984-03-22 | 1984-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-21 | 1988-03-22 | 1988-09-21 | $7700.00 | Window Closed / Lapsed |