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Title:
POLYAMIDE RESIN COMPOSITION FOR CASE OF INFORMATION COMMUNICATION DEVICE
Document Type and Number:
Japanese Patent JP2013227556
Kind Code:
A
Abstract:

To provide a polyamide resin composition having low water absorption rate, and excellent in dimensional stability from room temperature to high temperature environment, and very much suited to cases of information communication devices.

A polyamide resin composition is obtained by blending 0.01-200 pts.wt. of an inorganic filler to 100 pts.wt. of a polyamide resin obtained by polycondensing monomers including tetramethylene diamine and ≥7C aliphatic dicarboxylic acid as principal components; and having a ratio (storage elastic modulus at 110°C/storage elastic modulus at 30°C) of a storage elastic modulus at 110°C measured in bending mode to a storage elastic modulus at 30°C measured in bending mode is 0.30 or more and a tanδ peak top value corresponding to a glass transition temperature of the polyamide resin is 0.98 or less.


Inventors:
OKUBO TAKURO
MASUNAGA ATSUSHI
KATO KIMIYA
UMETSU HIDEYUKI
Application Number:
JP2013068795A
Publication Date:
November 07, 2013
Filing Date:
March 28, 2013
Export Citation:
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Assignee:
TORAY INDUSTRIES
International Classes:
C08K7/04; C08K3/34; C08L77/06