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EP0308131A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Ethylenic thermoplastic resin composition

Assignee: Eneos Corp
•
Filing: 1988-09-08
•
Granted: —
•
Expires: 2008-09-08
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Abstract

Abstract An ethylenic thermoplastic resin composition suitable for a heavy duty bag which comprises (a) 20-80% by weight of an ethylene/α-olefin copolymer having a density of 0.910 to 0.940 g/cm³. (b) 70-5% by weight of a copolymer of ethylene and a carboxyl group containing monomer or a derivative thereof; and (c) 50-5% by weight of an ethylene/α-olefin copolymer having (i) a density in the range of not lower than 0.860 g/cm³ to lower than 0.910 g/cm³, (ii) a maximum peak temperature not lower than 100°C as measured according to differential scanning calorimetry (DSC) and (iii) a boiling n-hexane insolubles content not smaller than 10% by weight, provided the total amount of the components (a), (b) and (c) is 100% by weight.

Inventors

  • 👤 Shigemitsu Kambe
  • 👤 Hideaki Miyafuzi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-29 23:11
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0807; C08L23/0815; C08J; C08J5/00; C08J5/18; C08L23/0846; C08L23/0869; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/08; C08L2205/00; C08L2205/02; C08L23/0853; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/1345

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 113 words
An ethylenic thermoplastic resin composition comprising: (a) 20-80% by weight of an ethylene/α-olefin copoly­mer having a density of 0.910 to 0.940 g/cm³. (b) 70-5% by weight of a copolymer of ethylene and a carboxyl group containing monomer or a deriva­tive thereof; and (c) 50-5% by weight of an ethylene/α-olefin copoly­mer having (i) a density in the range of not lower than 0.860 g/cm³ to lower than 0.910 g/cm³, (ii) a maximum peak temperature not lower than 100°C as measured according to differential scanning calorimetry (DSC) and (iii) a boiling n-hexane insolubles content not smaller than 10% by weight, provided the total amount of the components (a), (b) and (c) is 100% by weight.
Claim 2
Dependent Claim 113 words
An ethylenic thermoplastic resin composition comprising: (a) 20-80% by weight of an ethylene/α-olefin copoly­mer having a density of 0.910 to 0.940 g/cm³. (b) 70-5% by weight of a copolymer of ethylene and a carboxyl group containing monomer or a deriva­tive thereof; and (c) 50-5% by weight of an ethylene/α-olefin copoly­mer having (i) a density in the range of not lower than 0.860 g/cm³ to lower than 0.910 g/cm³, (ii) a maximum peak temperature not lower than 100°C as measured according to differential scanning calorimetry (DSC) and (iii) a boiling n-hexane insolubles content not smaller than 10% by weight, provided the total amount of the components (a), (b) and (c) is 100% by weight.
Claim 3
Dependent Claim 37 words
An ethylenic thermoplastic resin composition as set forth in Claim 1, wherein said copolymer (b) of ethylene and a carboxyl group containing monomer or a derivative thereof is an ethylene-ethyl acrylate copolymer or an ethylene-vinyl acetate copolymer.
Claim 4
Dependent Claim 58 words
An ethylenic thermoplastic resin composition as claimed in Claim 1 or Claim 2 wherein said ethylene/ α-olefin copolymer (c) is a copolymer prepared by polymerizing ethylene and an α-olefin having 3 to 12 carbon atoms in the presence of a catalyst comprising a solid component and an organoaluminum compound, said solid component containing at least magnesium and titanium.
Claim 5
Dependent Claim 44 words
An ethylenic thermoplastic resin composition as claimed in any one of claims 1 to 3, wherein the content of the carboxyl group containing monomer or the derivative thereof in said copolymer (b) is in the range of 3 percent to 50 percent by weight.
Claim 6
Dependent Claim 18 words
A film comprising an ethylenic thermoplastic resin composition as claimed in any one of claims 1 to 4.
Claim 7
Dependent Claim 13 words
A heavy duty bag formed from a film as claimed in claim 5.

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