US4885334A
Expired / Lapsed
US
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Thermoplastic resin composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1987-11-16
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Granted: 1989-12-05
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Expires: 2007-11-16
Abstract
Abstract A thermoplastic resin composition is described, comprising (a) a polyphenylene ether resin, (b) a polar thermoplastic resin having a polar functional group, and (c) a modified block copolymer obtained by subjecting a hydrogenated block copolymer comprising an aromatic vinyl compound polymer block (A) and a conjugated diene compound polymer block (B) to graft polymerization in the presence of a monomer having an epoxy group. The resin composition is excellent in impact resistance, solvent resistance, and compatibility among the resinous components thereof.
Inventors
- 👤 Junji Mayumi
- 👤 Hiroshi Omori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:28
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L63/00; C08L67/00; C08L77/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
62 words
A thermoplastic resin composition comprising (a) a polyphenylene ether resin, (b) a polar thermoplastic resin having a polar functional group, and (c) a modified block copolymer obtained by subjecting a hydrogenated block copolymer comprising an aromatic vinyl compound polymer block (A) and a conjugated diene compound polymer block (B) to graft polymerization in the presence of a monomer having an epoxy group.
Claim 2
Dependent Claim
62 words
A thermoplastic resin composition comprising (a) a polyphenylene ether resin, (b) a polar thermoplastic resin having a polar functional group, and (c) a modified block copolymer obtained by subjecting a hydrogenated block copolymer comprising an aromatic vinyl compound polymer block (A) and a conjugated diene compound polymer block (B) to graft polymerization in the presence of a monomer having an epoxy group.
Claim 3
Dependent Claim
27 words
A thermoplastic resin composition as claimed in claim 1, wherein from 1 to 80% by weight of said polyphenylene ether resin is replaced with a styrene polymer.
Claim 4
Dependent Claim
51 words
A thermoplastic resin composition as claimed in claim 1, wherein said polar thermoplastic resin is selected from the group consisting of polyester, polyamide, copolymers comprising an olefin monomer and a vinyl monomer having a polar functional group, modified polyolefin modified with a vinyl monomer having a polar functional group, and polycarbonate.
Claim 5
Dependent Claim
21 words
A thermoplastic resin composition as claimed in claim 1, wherein said aromatic vinyl compound is styrene, α-methylstyrene, p-methylstyrene, vinyltoluene, or vinylxylene.
Claim 6
Dependent Claim
16 words
A thermoplastic resin composition as claimed in claim 1, wherein said aromatic vinyl compound is styrene.
Claim 7
Dependent Claim
18 words
A thermoplastic resin composition as claimed in claim 1, wherein said conjugated diene compound is 1,3butadiene or 2-methyl-1,3-butadiene.
Claim 8
Dependent Claim
31 words
A thermoplastic resin composition as claimed in claim 1, wherein said hydrogenated block copolymer contains from 10 to 80% by weight of a repeating unit derived from the aromatic vinyl compound.
Claim 9
Dependent Claim
31 words
A thermoplastic resin composition as claimed in claim 1, wherein said hydrogenated block copolymer contains from 15 to 60% by weight of a repeating unit derived from the aromatic vinyl compound.
Claim 10
Dependent Claim
35 words
A thermoplastic resin composition as claimed in claim 1, wherein said block (B) in the hydrogenated block copolymer has a degree of unsaturation reduced to 20% or less based on the initial degree before hydrogenation.
Claim 11
Dependent Claim
51 words
A thermoplastic resin composition as claimed in claim 1, wherein said modified block copolymer has a toluene solution viscosity at 25° C. in the range of from 30 to 3,000 cps at a concentration of 15% by weight or from 50 to 10,000 cps at a concentration of 20% by weight.
Claim 12
Dependent Claim
23 words
A thermoplastic resin composition as claimed in claim 1, wherein said modified block copolymer has the epoxy value of from 0.007 to 0.35.
Claim 13
Dependent Claim
23 words
A thermoplastic resin composition as claimed in claim 1, wherein said modified block copolymer has the epoxy value of from 0.01 to 0.2.
Claim 14
Dependent Claim
36 words
A thermoplastic resin composition as claimed in claim 1, wherein the component (b) is present in an amount of from 10 to 95% by weight based on the total amount of the components (a) and (b).
Claim 15
Dependent Claim
36 words
A thermoplastic resin composition as claimed in claim 1, wherein the component (b) is present in an amount of from 20 to 90% by weight based on the total amount of the components (a) and (b).
Claim 16
Dependent Claim
36 words
A thermoplastic resin composition as claimed in claim 1, wherein the component (b) is present in an amount of from 25 to 85% by weight based on the total amount of the components (a) and (b).
Claim 17
Dependent Claim
41 words
A thermoplastic resin composition as claimed in claim 1, wherein the component (c) is present in an amount of from 5 to 50 parts by weight per 100 parts by weight of the total amount of the components (a) and (b).
Claim 18
Dependent Claim
41 words
A thermoplastic resin composition as claimed in claim 1, wherein the component (c) is present in an amount of from 10 to 30 parts by weight per 100 parts by weight of the total amount of the components (a) and (b).
Claim 19
Dependent Claim
32 words
The thermoplastic resin composition as claimed in claim 1, wherein said component (b) is polyethylene terephthalate, and said component (c) is a hydrogenated styrene/butadiene block copolymer to which glycidyl methacrylate is grafted.
Claim 20
Dependent Claim
59 words
A thermoplastic resin composition as claimed in claim 1, wherein said polar thermoplastic resin has a polar functional group selected from the group consisting of an amino group, a hydroxyl group, a carboxyl group or the salt thereof, a carboxylic acid anhydride group, a mercapto group, a urethane group, an ester group, an amido group and an ammonium group.
Claim 21
Dependent Claim
28 words
A thermoplastic resin composition as claimed in claim 1, wherein said polar thermoplastic resin having a polar functional group is a polar thermoplastic resin having an ester group.
Claim 22
Dependent Claim
22 words
A thermoplastic resin composition as claimed in claim 1, wherein said polar thermoplastic resin having a polar functional group is polyethylene terephthalate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1992-12-04 | 1993-06-05 | 1993-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-04 | 1997-06-05 | 1997-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-04 | 2001-06-05 | 2001-12-05 | $7700.00 | Window Closed / Lapsed |