METHOD FOR PRODUCING POLYMER MOLDED ARTICLE, AND POLYMER MOLDED ARTICLE

Title:

METHOD FOR PRODUCING POLYMER MOLDED ARTICLE, AND POLYMER MOLDED ARTICLE

Document Type and Number:

WIPO Patent Application WO/2012/096091

Kind Code:

A1

Abstract:

Provided are: a method for producing a polymer molded article, which is capable of increasing crystallinity, heat resistance and isotropic elastic modulus of a polymer molded article, while maintaining the original shape of the polymer molded article; and a polymer molded article which is obtained by the method and has high crystallinity, heat resistance and isotropic elastic modulus. A method for producing a polymer molded article, which comprises: a step wherein a polymer material that is mainly composed of a crystalline polymer is prepared; and an impregnation step wherein a polymer molded article is obtained by impregnating the polymer material with a first gas, which is soluble in the crystalline polymer, at a temperature higher than (Tm - 30)˚C but lower than (Tm - 15)˚C when Tm (˚C) represents the melting point of the crystalline polymer in an atmosphere in which the pressure of the first gas is not less than atmospheric pressure. A polymer molded article which is obtained by this production method.

Inventors:

TABATA HIRONORI (JP)
NAKASUGA AKIRA (JP)

Application Number:

PCT/JP2011/078936

Publication Date:

July 19, 2012

Filing Date:

December 14, 2011

Export Citation:

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Assignee:

SEKISUI CHEMICAL CO LTD (JP)
TABATA HIRONORI (JP)
NAKASUGA AKIRA (JP)

International Classes:

C08J7/00; C08J5/00; C08J7/02

Foreign References:

JPH07300530A	1995-11-14
JPS62256803A	1987-11-09
JP2008037102A	2008-02-21
JP2009504897A	2009-02-05
JP2000128993A	2000-05-09
JPH04502024A	1992-04-09
JPS61246230A	1986-11-01
JP2000128993A	2000-05-09

Other References: