US4145377A
Expired / Lapsed
US
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Composition of a polyphenylene ether, a styrene resin, a precompounded polymer system and a block copolymer of a vinyl aromatic compound and an olefinic elastomer
Assignee: General Electric Co
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Filing: 1976-12-03
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Granted: 1979-03-20
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Expires: 1996-12-03
Abstract
Abstract There are provided compositions comprising (a) a polyphenylene ether; (b) a polystyrene resin; (c) a precompounded polymer system comprising an olefinic resin and an elastomeric block copolymer alone, or in further combination with a dispersing agent; and (d) an elastomeric block copolymer resin. The use of (c) and (d) together provides, surprisingly, higher impact strength over the entire composition range of (a) to (b), with lower amounts of (c) and (d), based on the total resinous components of the system, being required.
Inventors
- 👤 Jan Bussink
- 👤 Johannes W. J. DE Munck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:54
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L23/00; C08L23/02; C08L53/00
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
149 words
A high impact strength thermoplastic composition comprising an intimate blend of: (a) a polyphenylene ether resin, alone; or combined with (b) a styrene resin; (c) a precompounded composition comprising from 80 to 20 parts by weight of an olefinic resin comprising polyethylene or a poly-α-olefin resin, alone or in further combination with a minor, effective amount of a dispersing aid, and correspondingly from 20 to 80 parts by weight of a linear, sequential or radial teleblock copolymer of a vinyl aromatic compound (A) n and (A)1/n and an olefinic elastomer (B), of the A-B-A 1 ; A-(B-A-B) n -A; A(BA) n B; (A) 4 B; B(A) 4 ; or B (AB) n B! 4 type, wherein n is an integer of from 1 to 10 obtained by the hydrogenation of a conjugated diene polymer; and (d) an elastomeric block copolymer of one of the types set forth in (c).
Claim 2
Dependent Claim
149 words
A high impact strength thermoplastic composition comprising an intimate blend of: (a) a polyphenylene ether resin, alone; or combined with (b) a styrene resin; (c) a precompounded composition comprising from 80 to 20 parts by weight of an olefinic resin comprising polyethylene or a poly-α-olefin resin, alone or in further combination with a minor, effective amount of a dispersing aid, and correspondingly from 20 to 80 parts by weight of a linear, sequential or radial teleblock copolymer of a vinyl aromatic compound (A) n and (A)1/n and an olefinic elastomer (B), of the A-B-A 1 ; A-(B-A-B) n -A; A(BA) n B; (A) 4 B; B(A) 4 ; or B (AB) n B! 4 type, wherein n is an integer of from 1 to 10 obtained by the hydrogenation of a conjugated diene polymer; and (d) an elastomeric block copolymer of one of the types set forth in (c).
Claim 3
Dependent Claim
44 words
A composition as defined in claim 1 wherein said polyphenylene ether resin component (a) comprises from 1 to 99 parts by weight and styrene resin component (b) comprises from 99 to 1 parts by weight of the total weight of components (a) and (b).
Claim 4
Dependent Claim
46 words
A composition as defined in claim 1 wherein components (a) and (b) together comprise from 99 to 75 parts by weight and components (c) and (d) together comprise from 1 to 25 parts by weight of the total weight of components (a), (b), (c) and (d).
Claim 5
Dependent Claim
36 words
A composition as defined in claim 1 wherein component (c) comprises from 80 to 20 parts by weight and component (d) from 20 to 80 parts by weight of the total weight of (c) and (d).
Claim 6
Dependent Claim
93 words
A composition as defined in claim 1 wherein component (a) is a polyphenylene ether of the formula: ##STR4## wherein the oxygen ether atom of one unit is connected to the benzene nucleus of the next adjoining unit; m is an integer of at least 50; and each Q is a monovalent substitutent selected from hydrogen, halogen, hydrocarbon radicals, halohydrocarbon radicals having at least two carbon atoms between the halogen atom and the phenyl nucleus, hydrocarbonoxy radicals, and halohydrocarbonoxy radicals having at least two carbon atoms between the halogen atom and the phenyl nucleus.
Claim 7
Dependent Claim
19 words
A composition as defined in claim 5 wherein each Q is alkyl having from 1 to 4 carbon atoms.
Claim 8
Dependent Claim
12 words
A composition as defined in claim 6 wherein each Q is methyl.
Claim 9
Dependent Claim
69 words
A composition as defined in claim 1 wherein component (b) is a styrene resin having at least 25% of the polymer units derived from a vinyl aromatic compound of the formula: ##STR5## wherein R is hydrogen, alkyl of from 1 to 4 carbon atoms or halogen; Z is hydrogen, alkyl of from 1 to 4 carbon atoms or vinyl; and p is an integer of from 1 to 5.
Claim 10
Dependent Claim
55 words
A composition as defined in claim 8 wherein styrene resin is a styrene homopolymer resin or a rubber modified high impact styrene resin wherein the rubber comprises a diene or olefinic rubber or a rubbery copolymer of butadiene and styrene in an amount of from about 4 to about 12% by weight of said resin.
Claim 11
Dependent Claim
40 words
A composition as defined in claim 1 wherein, in components (c) and (d), (A) and (A) 1 are selected from styrene, α-methyl styrene, vinyl toluene, vinyl xylene and vinyl naphthalene and (B) is selected from butadiene, isoprene, 1,3-pentadiene or 2,3-dimethylbutadiene.
Claim 12
Dependent Claim
30 words
A composition as defined in claim 10 wherein, in components (c) and (d), (A) is a styrene block, (B) is an olefin block, and (A) 1 is a styrene block.
Claim 13
Dependent Claim
40 words
A composition as defined in claim 11 wherein, in components (c) and (d), terminal blocks (A) and (A) 1 have molecular weights of 2,000 to 100,000, respectively, and center block (B) has a molecular weight of from 25,000 to 1,000,000.
Claim 14
Dependent Claim
16 words
A composition as defined in claim 1 wherein, in component (c), said olefinic resin is polyethylene.
Claim 15
Dependent Claim
16 words
A composition as defined in claim 1 wherein, in component (c), said olefinic resin is polypropylene.
Claim 16
Dependent Claim
42 words
A composition as defined in claim 1 wherein, in component (c), the dispersing aids are selected from hydrocarbon resins, mineral oil, an ester of phosphoric acid, an ester of phthalic acid, a styrene homopolymer or a combination of any of the foregoing.
Claim 17
Dependent Claim
16 words
A reinforced composition as defined in claim 1 including a reinforcing amount of a reinforcing filler.
Claim 18
Dependent Claim
14 words
A composition as defined in claim 15 wherein said reinforcing agent comprises glass fibers.
Claim 19
Dependent Claim
19 words
A composition as defined in claim 1 which also includes at least a small, effective amount of a plasticizer.
Claim 20
Dependent Claim
16 words
A composition as defined in claim 18 wherein said plasticizer comprises an ester of phosphoric acid.
Claim 21
Dependent Claim
13 words
A composition as defined in claim 19 wherein said plasticizer is triphenyl phosphate.
Claim 22
Dependent Claim
11 words
A composition as defined in claim 1 which is flame retardant.
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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) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |