Title:
HIGH-MELTING-POINT POLYAMIDE RESIN COMPOSITION HAVING EXCELLENT VIBRATION CHARACTERISTICS UPON WATER ABSORPTION
Document Type and Number:
WIPO Patent Application WO/2015/001996
Kind Code:
A1
Abstract:
Provided is a high-melting-point polyamide resin composition that has excellent vibration resistance characteristics, i.e., has an extremely high resonance frequency and can particularly maintain a high resonance frequency even upon water absorption. This polyamide resin composition comprises a polyamide resin (A) that has a melting point (Tm) of from 290°C to 350°C and a heating crystallization temperature (Tc1) of from 80 to 150°C, and glass fibers (B) having a cross-sectional area of from 1.5 to 5.0×10-6 cm2, wherein: the weight ratio ((A):(B)) between said polyamide resin (A) and said glass fibers (B) is from 20:80 to 35:65; and said polyamide resin (A) is a copolymerized polyamide including (a) 55 to 75 mol% of a constituent unit obtained from an equimolar salt of hexamethylene diamine and terephthalic acid, and (b) 45 to 25 mol% of a constituent unit obtained from 11-aminoundecanoic acid or undecane lactam.
Inventors:
NAKAGAWA TOMOHIDE (JP)
OI TATSUYA (JP)
OI TATSUYA (JP)
Application Number:
PCT/JP2014/066507
Publication Date:
January 08, 2015
Filing Date:
June 23, 2014
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
C08L77/00; C08G69/26; C08K3/00; C08K5/00; C08K7/14
Domestic Patent References:
| WO2012161064A1 | 2012-11-29 | |||
| WO2009031521A1 | 2009-03-12 |
Foreign References:
| JP2012153798A | 2012-08-16 | |||
| JP2012136620A | 2012-07-19 | |||
| JP2009040808A | 2009-02-26 | |||
| JPH11286606A | 1999-10-19 | |||
| JP2012132027A | 2012-07-12 | |||
| JP2014152322A | 2014-08-25 |
Attorney, Agent or Firm:
KAZAHAYA, Nobuaki et al. (JP)
Nobuaki Kazahaya (JP)
Nobuaki Kazahaya (JP)
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