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Title:
POLYPROPYLENE RESIN COMPOSITION AND MANUFACTURING METHOD THEREFOR, BIAXIALLY-STRETCHED FILM AND MANUFACTURING METHOD THEREFOR, AND CAPACITOR FILM FOR FILM CONDENSER
Document Type and Number:
WIPO Patent Application WO/2016/159069
Kind Code:
A1
Abstract:
Provided is a polypropylene resin composition having superior balance in mechanical properties, good extrusion properties, a good appearance and low variation in thickness when made into a film, and exhibiting high thermal resistance. Said polypropylene resin composition satisfies the following requirements (1)-(3). (1) The melt flow rate (MFR), as measured at 230°C and a load of 2.16 kg in conformance to ASTM D1238, is 1-10 g/10min. (2) The isotactic pentad fraction measured using 13C-NMR is at least 0.93. (3) Mz is 600,000-1,400,000 and Mw/Mn is 6.5-14.0.

Inventors:
TAMURA, Satoshi (3, Chigusakaigan, Ichihara-sh, Chiba 08, 〒2990108, JP)
HIGUCHI, Masashi (6, Takasago 1-chome, Takaishi-sh, Osaka 01, 〒5928501, JP)
Application Number:
JP2016/060372
Publication Date:
October 06, 2016
Filing Date:
March 30, 2016
Export Citation:
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Assignee:
PRIME POLYMER CO., LTD. (5-2 Higashi-Shimbashi 1-chome, Minato-ku Tokyo, 22, 〒1057122, JP)
International Classes:
C08F110/06; C08L23/12; H01G4/18
Domestic Patent References:
WO2010107052A12010-09-23
WO2014065331A12014-05-01
Foreign References:
JP2010219328A2010-09-30
JP2006265318A2006-10-05
JP2009154332A2009-07-16
JP2000063678A2000-02-29
Other References:
See also references of EP 3279224A4
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (3F Tamachi Square, 26-24 Shiba 5-chome, Minato-k, Tokyo 14, 〒1080014, JP)
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