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Title:
PROPYLENE COPOLYMER AND PROPYLENE COPOLYMER COMPOSITION, MOLDING AND FOAM THEREOF, AND PROCESSES FOR PRODUCING SAID MOLDING AND FOAM
Document Type and Number:
WIPO Patent Application WO/2012/157709
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a propylene copolymer which has a long-chain branched structure and therefore has a high melt tension, exhibits excellent moldability during molding such as inflation molding, extrusion molding, blow molding, injection molding and vacuum molding, and is suitable for the production of a foam that has an excellent expansion ratio and excellent cell uniformity in an expansion step; and a propylene copolymer composition. This propylene copolymer (A) comprises 50-95 mol% of a constituent unit [i] derived from propylene, 4.9-49.9 mol% of a constituent unit [ii] derived from a C2-10 α-olefin other than propylene, and 0.1-10 mol% of a constituent unit [iii] derived from a non-conjugated polyene (wherein the total amount of the constituent units [i], [ii] and [iii] is 100 mol%), and is characterized by fulfilling specific requirements (a) and (c).

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Inventors:
OKAMOTO MASAHIKO (JP)
YASUDA MAYUMI (JP)
KASAI TETSUJI (JP)
KANEKO KAZUYOSHI (JP)
KOBAYASHI KYOKO (JP)
ICHINO KOTARO (JP)
Application Number:
PCT/JP2012/062677
Publication Date:
November 22, 2012
Filing Date:
May 17, 2012
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
OKAMOTO MASAHIKO (JP)
YASUDA MAYUMI (JP)
KASAI TETSUJI (JP)
KANEKO KAZUYOSHI (JP)
KOBAYASHI KYOKO (JP)
ICHINO KOTARO (JP)
International Classes:
C08F210/06; C08J9/04; C08L23/02; C08L23/10
Domestic Patent References:
WO2009072503A12009-06-11
WO2010064574A12010-06-10
WO2008152935A12008-12-18
WO2001027124A12001-04-19
Foreign References:
JP2011016907A2011-01-27
JP2002053625A2002-02-19
JP2002097228A2002-04-02
JP2002097284A2002-04-02
JPH1049212A1998-02-20
JP2000026268A2000-01-25
JP2009072503A2009-04-09
JP2010064574A2010-03-25
JP2002097228A2002-04-02
JP2011016907A2011-01-27
US4960878A1990-10-02
US5041584A1991-08-20
JPH0278687A1990-03-19
JPH01501950A1989-07-06
JPH01502036A1989-07-13
JPH03179005A1991-08-05
JPH03179006A1991-08-05
JPH03207703A1991-09-11
JPH03207704A1991-09-11
US5321106A1994-06-14
JP2004051676A2004-02-19
JP2003128851A2003-05-08
JP2009242667A2009-10-22
Other References:
TOSO KENKYU-GIJUTSU HOKOKU, vol. 47, 2003, pages 55
"Porima Seizou Purosesu", KOGYO CHOSAKAI PUBLISHING CO., LTD., pages: 309 - 330
See also references of EP 2711380A4
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
Patent business corporation SSINPAT (JP)
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