EP0213720A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Filler-containing polypropylene resin compositions
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1986-07-24
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Granted: —
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Expires: 2006-07-24
Abstract
Abstract A filler-containing polypropylene resin composition comprises (a) from 30 to 90% by weight of a polypropylene resin, (b) from 2.5 to 38% by weight of an ethylene copolymer composed of from 82 to 98.7 mol% of ethylene, from 1 to 15 mol% of an ester selected from alky acrylate and alkyl methacrylates having from 1 to 8 carbon atoms in the alkyl moiety thereof, and from 0.3 to 3 mol% of an unsaturated dicarboxylic acid anhydride, and (c) from 5 to 50% by weight of filler. Molded products obtained from the composition have improved surface properties, such as adhesibility, coatability and printability.
Inventors
- 👤 Tatsuyuki Mitsuno
- 👤 Teruhisa Koyama
- 👤 Hideo Shinonaga
- 👤 Akio Daimon
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 12:54
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K9/00; C08K9/08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/10; C08L33/00; C08L33/04; C08L35/00; C08L23/0846; C08L23/0869
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
88 words
A filler-containing polypropylene resin composition characterised in that the composition comprises (a) from 30 to 90% by weight of polypropylene resin, (b) from 2.5 to 38% by weight of an ethylene copolymer composed of from 82 to 98.7 mol% of ethylene, from 1 to 15 mol% of ester selected from alkyl acrylates and alkyl methacrylates having from 1 to 8 carbon atoms in the alkyl moiety thereof, and from 0.3 to 3 mol% of unsaturated dicarboxylic acid anhydride, and (c) from 5 to 50% by weight of filler.
Claim 2
Dependent Claim
88 words
A filler-containing polypropylene resin composition characterised in that the composition comprises (a) from 30 to 90% by weight of polypropylene resin, (b) from 2.5 to 38% by weight of an ethylene copolymer composed of from 82 to 98.7 mol% of ethylene, from 1 to 15 mol% of ester selected from alkyl acrylates and alkyl methacrylates having from 1 to 8 carbon atoms in the alkyl moiety thereof, and from 0.3 to 3 mol% of unsaturated dicarboxylic acid anhydride, and (c) from 5 to 50% by weight of filler.
Claim 3
Dependent Claim
26 words
A composition as claimed in Claim 1, wherein said ester is present in an amount of from 3 to 12 mol% based on the ethylene copolymer(b).
Claim 4
Dependent Claim
18 words
A composition as claimed in claim 1 to 2, wherein said unsaturated dicarboxylic acid anhydride is maleic anhydride.
Claim 5
Dependent Claim
33 words
A composition as claimed in claim 1, 2 or 3, wherein said unsaturated dicarboxylic acid anhydirde is present in an amount of from 0.5 to 2.8 mol% based on the ethylene copolymer (b).
Claim 6
Dependent Claim
21 words
A composition as claimed in any preceding claim, wherein said ethylene copolymer has a melt index of from 0.5 to 300.
Claim 7
Dependent Claim
29 words
A composition as claimed in any preceding claim, wherein said ethylene copolymer (b) is present in an amount of from 5 to 30% by weight based on the composition.
Claim 8
Dependent Claim
16 words
A composition as claimed in any preceding claim, wherein said filler (c) is talc and/or mica.
Claim 9
Dependent Claim
28 words
A composition as claimed in any preceding claim, wherein said filler (c) is present in an amount of from 10 to 40% by weight based on the composition.
Claim 10
Dependent Claim
18 words
A component part for a vehicle or appliance, molded from a composition as claimed in any preceding claim.
References Cited (Backward Citations)
No citation records indexed.
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