Patent EP0177151A2 successfully refreshed from Google Patents.
EP0177151A2
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EP
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Thermoplastic resin composition
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1985-08-20
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Granted: —
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Expires: 2005-08-20
Abstract
Abstract A novel thermoplastic resin composition comprising a blend of a resin composition (D) with a copolymer (C) containing epoxy groups, said resin composition (D) being composed of (A) a polypropylene graft-modified by an unsaturated carboxylic acid or anhydride thereof, with or without unmodified polypropylene, and (B) a saturated polyester resin has excellent physical properties and can be used to provide shaped articles, sheets and films having excellent appearance, uniformity and smoothness.
Inventors
- 👤 Kentaro Mashita
- 👤 Takeshi Fujii
- 👤 Tadayuki Oomae
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 11:31
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
68 words
A thermoplastic resin composition comprising 100 parts by weight of a resin composition (D) and 2 to 30 parts by weight of a copolymer (C) containing epoxy groups, said resin composition (D) being composed of 50 to 90 wt % of a polypropylene resin (A) which is a modified polypropylene with or without an unmodified polypropylene, and 50 to 10 wt % of a saturated polyester resin (B).
Claim 2
Dependent Claim
68 words
A thermoplastic resin composition comprising 100 parts by weight of a resin composition (D) and 2 to 30 parts by weight of a copolymer (C) containing epoxy groups, said resin composition (D) being composed of 50 to 90 wt % of a polypropylene resin (A) which is a modified polypropylene with or without an unmodified polypropylene, and 50 to 10 wt % of a saturated polyester resin (B).
Claim 3
Dependent Claim
43 words
A thermoplastic resin composition according to claim 1 wherein the resin composition (D) is composed of 60 to 80 wt % of (A) and 40 to 20 wt % of (B), and (C) is present in amount 3 to 20 parts by weight.
Claim 4
Dependent Claim
28 words
A thermoplastic resin composition according to claim 1 or 2, wherein the polypropylene is crystalline homopolypropylene or a crystalline copolymer of propylene and at least one other alpha-olefin.
Claim 5
Dependent Claim
54 words
A thermoplastic resin composition according to claim 1, 2 or 3 wherein the modified polypropylene is a product of the graft polymerisation of a propylene homopolymer or copolymer with at least one other alpha-olefin and 0.05 to 20 wt %, based on the propylene homopolymer or copolymer, of an unsaturated carboxylic acid or anhydride.
Claim 6
Dependent Claim
24 words
A thermoplastic resin composition according to claim 4 wherein the amount of unsaturated carboxylic acid or anhydride thereof is 0.1 to 10 wt %.
Claim 7
Dependent Claim
23 words
A thermoplastic resin composition according to claim 4 or 5 wherein the grafting monomer used in preparing the resin (A) is maleic anhydride.
Claim 8
Dependent Claim
25 words
A thermoplastic resin composition according to any one of the preceding claims wherein the polypropylene resin (A) has a melt index of 0.1 to 100.
Claim 9
Dependent Claim
16 words
A thermoplastic resin composition according to claim 7 wherein the melt index is 0.5 to 40.
Claim 10
Dependent Claim
37 words
A thermoplastic resin composition according to any one of the preceding claims wherein the resin (A) comprises a blend of modified polypropylene with unmodified polypropylene, the blend containing at least 5 wt t of the modified polypropylene.
Claim 11
Dependent Claim
28 words
A thermoplastic resin composition according to any one of the preceding claims wherein the resin (8) has an intrinsic viscosity in o-chlorophenol at 25°C of 0.5 to 3.0.
Claim 12
Dependent Claim
22 words
A thermoplastic resin composition according to any one of the preceding claims wherein the resin (B) is polybutylene terephthalate or polyethylene terephthalate.
Claim 13
Dependent Claim
35 words
A thermoplastic resin composition according to any one of the preceding claims wherein the copolymer (C) is a copolymer of an unsaturated epoxy compound with ethylene and optionally an ethylenically unsaturated compound other than ethylene.
Claim 14
Dependent Claim
23 words
A thermoplastic resin composition according to claim 12 wherein the copolymer (C) comprises 0.1 to 50 wt % of the unsaturated epoxy compound.
Claim 15
Dependent Claim
21 words
A thermoplastic resin composition according to claim 13 wherein the amount of unsaturated epoxy compound is 1 to 30 wt %.
Claim 16
Dependent Claim
42 words
A thermoplastic resin composition according to claim 12, 13 or 14 wherein the unsaturated epoxy compound is of the formula or wherein R is an ethylenically unsaturated hydrocarbon group of 2 to 18 carbon atoms and X is -CH 2 0- or
Claim 17
Dependent Claim
14 words
A thermoplastic resin composition according to claim 15 wherein R is a vinyl group.
References Cited (Backward Citations)
No citation records indexed.
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