| 摘要 |
PROBLEM TO BE SOLVED: To provide stable polyacetal resin composition that can control the amount of generated formaldehyde to an extremely low level and also causes no adverse effect on other resin molded articles existing together in a tightly closed space. SOLUTION: The polyacetal resin composition includes (B) 0.01 to 5.0 pts.wt. of a carboxylic acid hydrazide based on (A) 100 pts.wt. of a polyacetal resin, wherein (B) the carboxylic acid hydrazide generates less than 10 ppm of hydrazine according to the head space GC/MS method by heating at 200°C for 10 minutes. COPYRIGHT: (C)2007,JPO&INPIT
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