EP0485631A1
Expired / Lapsed
EP
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Polyolefin resin composition
Assignee: Mitsui Chemicals Inc
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Filing: 1991-06-05
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Granted: —
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Expires: 2011-06-05
Abstract
Abstract A polyolefin resin composition comprising: (a) 50 to 95 wt% of a specified cycloolefin polymer; (b) 1 to 50 wt% of a graft elastomer, and (c) 0.01 to 45 wt% of a monoamino compound, and having improved mechanical properties, in particular impact resistance, while retaining excellent properties of the polymer (a).
Inventors
- 👤 Satoru Moriya
- 👤 Akio Ishimoto
- 👤 Mamoru Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 07:01
CPC Classifications
C; C08; C08L; C08L45/00; C08L51/00; C08L51/06; C08L51/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
262 words
A polyolefin resin composition comprising: (a) at least one cycloolefin-based polymer selected from the group consisting of a homopolymer (a1) derived from one of cycloolefins of the following formula (I), (wherein n is 0 or 1, m is 0 or a positive integer, q is 0 or 1, each of R¹ to R¹⁸, R a and R b is, independently of the other, an atom or a group selected from the class consisting of a hydrogen atom, a halogen atom and a hydrocarbon group, the two of R¹⁵ to R¹⁸ may bond to each other to form a monocyclic or polycyclic group which may have a double bond, and further, a combination of R¹⁵ and R¹⁶ or a combination of R¹⁷ and R¹⁸ may form an alkylidene group), a copolymer (a2) derived from said cycloolefins, a hydrogenation polymer (a3) of the homopolymer (a1) or the copolymer (a2), and a cycloolefin/ethylene random copolymer (a4) composed of a polymer unit derived from said cycloolefins and a polymer unit of ethylene, (b) an elastomer being graft-modified with an unsaturated carboxylic acid or a derivative thereof and having a tensile modulus, at 23°C, of 0.1 to 2,000 kg/cm², and (c) a compound having one amino group in the molecule, (d) the polyolefin resin composition containing, per 100 parts by weight of the total amount of the component (a), the component (b) and the component (c), 50 to 95 parts by weight of the component (a), 1 to 50 parts by weight of the component (b) and 0.01 to 45 parts by weight of the component (c).
Claim 2
Dependent Claim
44 words
The polyolefin resin composition of Claim 1, wherein the component (a) has a softening temperature in the range between 70°C and 200°C and the component (a) has an intrinsic viscosity [η], measured in decalin at 130°C, in the range of 0.3 to 2.0 dl/g.
Claim 3
Dependent Claim
31 words
The polyolefin resin composition of Claim 1, wherein the graft-modified elastomer (b) is a graft-modified product of a noncrystalline or low-crystallinity α-olefin copolymer formed from at least two kinds of α-olefins.
Claim 4
Dependent Claim
27 words
The polyolefin resin composition of Claim 1, wherein the compound (c) having one amino group in the molecule is ε-aminocaproic acid or a condensate thereof, or nylon-6.
References Cited (Backward Citations)
No citation records indexed.
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