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Patent Searching and Data


Title:
POLYAMIDE RESIN COMPOSITION HAVING EXCELLENT WEATHER RESISTANCE
Document Type and Number:
WIPO Patent Application WO/2019/074038
Kind Code:
A1
Abstract:
Provided is a glass fiber-reinforced polyamide resin composition which enables the achievement of a molded article that has high vibration resistance characteristics, i.e. an extremely high resonant frequency, and which has excellent discoloration resistance against weathering. A glass fiber-reinforced polyamide resin composition which contains (A) a polyamide resin that is configured from (a1) an aliphatic polyamide and (a2) a polyamide containing an aromatic component, (B) glass fibers having a cross-sectional area of from 1.5 × 10-6 cm2 to 5.0 × 10-6 cm2, (C) a carbon black, (D) a hindered amine light stabilizer and (E) an ultraviolet absorbent, and which is configured such that: the mass ratio of the polyamide resin (A) to the glass fibers (B), namely (A):(B) is from 20:80 to 35:65; the mass ratio of the aliphatic polyamide (a1) to the polyamide (a2) containing an aromatic component, namely (a1):(a2) is from 5:95 to 95:5; and the contents of the carbon black (C), the hindered amine light stabilizer (D) and the ultraviolet absorbent (E) in the polyamide resin composition are 0-5% by mass, 0.05-1% by mass and 0-1% by mass, respectively.

Inventors:
YOSHIMURA, Nobuhiro (1-1, Katata 2-chome, Otsu-sh, Shiga 92, 〒5200292, JP)
FUJII, Yasuto (1-1, Katata 2-chome, Otsu-sh, Shiga 92, 〒5200292, JP)
Application Number:
JP2018/037859
Publication Date:
April 18, 2019
Filing Date:
October 11, 2018
Export Citation:
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Assignee:
TOYOBO CO., LTD. (2-8 Dojima Hama 2-chome, Kita-ku Osaka-sh, Osaka 30, 〒5308230, JP)
International Classes:
C08L77/00; C08J5/08; C08K3/04; C08K7/14; C08L77/06
Domestic Patent References:
WO2014171363A12014-10-23
Foreign References:
JP2010254760A2010-11-11
JPH10182874A1998-07-07
JPH0593134A1993-04-16
JP2013043975A2013-03-04
Attorney, Agent or Firm:
KAZAHAYA, Nobuaki et al. (Shin-Ei Building 6th Fl, 6-20 Tosabori 1-chome, Nishi-ku, Osaka-sh, Osaka 01, 〒5500001, JP)
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