POLYMER ARTICLE AND METHOD FOR PRODUCING POLYMER ARTICLE

Title:

POLYMER ARTICLE AND METHOD FOR PRODUCING POLYMER ARTICLE

Document Type and Number:

WIPO Patent Application WO/2012/008223

Kind Code:

A1

Abstract:

Disclosed are: a polymer article which has excellent mechanical strength, toughness and stretchability; and a method for producing the polymer article. Specifically disclosed is a polymer article which is a polymer material or polymer molded body that is formed from a polymer starting material. The polymer article has a crystallinity of 50% or more but less than 90% and a tensile strain at break of 60% or more. Also specifically disclosed is a method for producing the polymer article, which comprises: a heating step wherein the polymer starting material is heated to a temperature of (Tm - 70)˚C or more but less than Tm˚C when the melting point (˚C) of the polymer starting material is represented by Tm; and a compression step wherein a polymer article that has a crystallinity of 50% or more but less than 90% and a tensile strain at break of 60% or more is obtained by cooling the polymer starting material heated in the heating step and compressing the polymer starting material during the cooling process.

Inventors:

TABATA HIRONORI (JP)
HIRANO HIROYUKI (JP)
UCHIDA KAZUHO (JP)
NAKASUGA AKIRA (JP)

Application Number:

PCT/JP2011/061827

Publication Date:

January 19, 2012

Filing Date:

May 24, 2011

Export Citation:

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Assignee:

SEKISUI CHEMICAL CO LTD (JP)
TABATA HIRONORI (JP)
HIRANO HIROYUKI (JP)
UCHIDA KAZUHO (JP)
NAKASUGA AKIRA (JP)

International Classes:

B29C69/00; B29C43/02; B29C43/52; B29C48/12; B29C48/13; C08J7/00; B29C48/07; B29K23/00

Domestic Patent References:

WO2007026832A1

2007-03-08

Foreign References:

JPS63191616A	1988-08-09
JPH107832A	1998-01-13
JPH0494917A	1992-03-27
JPH05278142A	1993-10-26
JPH10306168A	1998-11-17
JP2007314645A	2007-12-06
JPS63194918A	1988-08-12
JP2003525778A	2003-09-02

Other References: