POLYPROPYLENE - DAIHATSU MOTOR CO LTD

Title:

POLYPROPYLENE

Document Type and Number:

Japanese Patent JP2015189810

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide polypropylene which is substantially improved in mechanical properties, compared from the raw polypropylene.SOLUTION: A raw propylene having a meso phase is heat-treated at a temperature equal to or higher than the temperature 15°C lower than the melting point of the raw propylene and lower than the melting point of the raw polypropylene, with the melting point measured by the differential scanning calorimetric measurement method (DSC method) based on the method specified in JIS K7122(1987). The heat treatment improves the crystallinity and mechanical properties of polypropylene.

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Inventors:

OKAMURA KOSAKU
YAMADA KOJI
TANIGUCHI MASASHI

Application Number:

JP2014066686A

Publication Date:

November 02, 2015

Filing Date:

March 27, 2014

Export Citation:

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Assignee:

DAIHATSU MOTOR CO LTD

International Classes:

C08J7/00

Attorney, Agent or Firm:

Hiroyuki Okamoto
Shinichi Uda

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