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Title:
POLYOLEFIN RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2002/062889
Kind Code:
A1
Abstract:
A polyolefin resin composition which comprises (A) a polyolefin (I) obtained from at least one monomer selected among $g(a)-olefins, cycloolefins, and styrene and derivatives thereof, (B) a polyolefin (II) which is obtained from the at least one monomer and is different in composition and properties from the polyolefin (I), and (C) a graft copolymer obtained by bonding the polyolefin (I) to the polyolefin (II) through a polyene, wherein the ratio of the relaxation rate of a long-relaxing ingredient (1/R¿1?) in the composition as measured by solid ?1¿H-NMR spectroscopy to the relaxation rate of a resin mixture consisting of the ingredient (A) and the ingredient (B) only (1/R¿1?)¿0?, i.e., [(1/R¿1?)/(1/R¿1?)¿0?], is 1.01 or higher and the composition has an intrinsic viscosity [$g(h)] (135°C decalin) of 0.1 to 10 dl/g. This resin composition can be easily controlled with respect to factors which influence or develop morphology or material properties such as interfacial strength. Thus, a composite material comprising polyolefin resins can be designed according to properties required.

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Inventors:
MACHIDA SHUJI (JP)
SATO KAZUO (JP)
Application Number:
PCT/JP2002/000952
Publication Date:
August 15, 2002
Filing Date:
February 06, 2002
Export Citation:
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Assignee:
IDEMITSU PETROCHEMICAL CO (JP)
MACHIDA SHUJI (JP)
SATO KAZUO (JP)
International Classes:
C08F255/00; C08L23/02; C08L23/06; C08L23/08; C08L23/12; C08L23/14; C08L25/04; C08L51/06; C08L25/06; C08L65/00; (IPC1-7): C08L23/02; C08L25/00; C08L45/00; C08L51/06
Foreign References:
EP0559108A11993-09-08
US5455300A1995-10-03
JPH10316711A1998-12-02
JPH04288355A1992-10-13
EP0366411A21990-05-02
Other References:
See also references of EP 1367093A4
Attorney, Agent or Firm:
Ohtani, Tamotsu (6F. 25-2 Toranomon 3-chome Minato-ku, Tokyo, JP)
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