Patent EP0080666A1 successfully refreshed from Google Patents.
EP0080666A1
Expired / Lapsed
EP
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Polyphenylene ether resin compositions containing polyolefin in high amount
Assignee: General Electric Co
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Filing: 1982-11-19
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Granted: —
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Expires: 2002-11-19
Abstract
Abstract Thermoplastic compositions of polyphenylene ether resin and diblock or radial teleblock copolymer of an alkenyl aromatic compound and a conjugated diene (which can be hydrogenated) containing polyolefin resin in large amount are described. The compositions are moldable into articles which do not exhibit the brittleness and tendency toward delamination often associated with use of large amounts of polyolefin.
Inventors
- 👤 Gim Fun Lee
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 05:41
CPC Classifications
C; C08; C08L; C08L53/00; C08L53/02; C08L53/025; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; Y; Y10; Y10S; Y10S525/00; Y10S525/901; Y10S525/905
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
71 words
A thermoplastic composition, comprising in intimate admixture: (a) a polyphenylene ether resin; and (b) in property improving combination, a polyolefin resin and a polymer selected from the group consisting of diblock or radial teleblock copolymers of an alkenyl aromatic compound and a conjugated diene, said polyolefin resin being present in an amount of at least 20 parts by weight based on 100 parts of the combined weight of (a) and (b).
Claim 2
Dependent Claim
71 words
A thermoplastic composition, comprising in intimate admixture: (a) a polyphenylene ether resin; and (b) in property improving combination, a polyolefin resin and a polymer selected from the group consisting of diblock or radial teleblock copolymers of an alkenyl aromatic compound and a conjugated diene, said polyolefin resin being present in an amount of at least 20 parts by weight based on 100 parts of the combined weight of (a) and (b).
Claim 3
Dependent Claim
15 words
A composition according to Claim 1, in which the polyphenylene ether resin is poly(2,6-dimethyl-1,4-phenylene) ether.
Claim 4
Dependent Claim
25 words
A composition according to Claim 1, in which the weight ratio of polyphenylene ether to diblock or radial teleblock copolymer is from 4:1 to 1:2.
Claim 5
Dependent Claim
35 words
A composition according to Claim 1, in which the polyolefin is selected from among polyethylene, polypropylene, polyisobutylene, copolymers of ethylene and propylene, copolymers of ethylene and organic esters, and mixtures of any of the foregoing.
Claim 6
Dependent Claim
12 words
A composition according to Claim 1, in which the polyolefin is polyethylene.
Claim 7
Dependent Claim
18 words
A composition according to Claim 1, in which the polymer is a diblock copolymer of styrene and butadiene.
Claim 8
Dependent Claim
19 words
A composition according to Claim 6, in which the diblock copolymer has been hydrogenated to reduce the aliphatic unsaturation.
Claim 9
Dependent Claim
22 words
A composition according to Claim 1; in which the polymer is a radial teleblock copolymer of styrene, butadiene and a coupling agent.
Claim 10
Dependent Claim
20 words
A composition according to Claim 8, in which the radial teleblock copolymer has been hydrogenated to reduce the aliphatic unsaturation.
Claim 11
Dependent Claim
30 words
A composition according to Claim 1, in which the polyolefin is present in an amount between 30 and 60 parts by weight based on the total amount of resinous ingredients.
Claim 12
Dependent Claim
28 words
ll. A composition according to Claim 1, which also includes one or more additives selected from among flame retardants, fillers and/or reinforcements, strengthening fibers, plasticizers, pigments and antioxidants.
Claim 13
Independent Claim
45 words
A method for improving the compatability of a mixture of polyolefin resin and polyphenylene ether resin, which comprises including in the mixture an effective amount of a polymer which is a diblock or radial teleblock copolymer of an alkenyl aromatic compound and a conjugated diene.
Claim 14
Independent Claim
45 words
A method for improving the compatability of a mixture of polyolefin resin and polyphenylene ether resin, which comprises including in the mixture an effective amount of a polymer which is a diblock or radial teleblock copolymer of an alkenyl aromatic compound and a conjugated diene.
References Cited (Backward Citations)
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