Polyamide resin composition
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsKazunobu Sato, Jun Mitadera
Life of this patent
Estimating the term…
Abstract
The polyamide resin composition of the present invention comprises a polyamide resin and a smectite treated with an organic swelling agent. The polyamide resin is produced by the polycondensation of a diamine component containing 70 mol % or more of m-xylylenediamine and a dicarboxylic acid component containing 70 mol % or more of a straight-chain, aliphatic α,ω-dicarboxylic acid having 4 to 20 carbon atoms, and meets requirement of (1) a terminal amino concentration of less than 60 μeq/g and/or (2) a reaction molar ratio of less than 1.0 when defined by a molar ratio of reacted diamine to reacted dicarboxylic acid.
Claims9
A polyamide resin composition comprising:
- (A) 92 to 99.5 parts by weight of a polyamide resin produced by the polycondensation of a diamine component containing 70 mol % or more of m-xylylenediamine and a dicarboxylic acid component containing 70 mol % or more of a straight-chain, aliphatic α,ω-dicarboxylic acid having 4 to 20 carbon atoms;
- and
- (B) 8 to 0.5 part by weight of a smectite treated with an organic swelling agent,
- the polyamide resin A meeting the requirement of (1) a terminal amino concentration of less than 60 μeq/g and/or (2) a reaction molar ratio of less than 1.0 when defined by a molar ratio of reacted diamine to reacted dicarboxylic acid.
Dependencies are inferred from the claim text.