Polyacetal resin composition and article thereof

Details Polyacetal resin composition and article thereof Polyacetal resin composition and article thereof

2004-10-21

2010-10-19

Cano, Milton I (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S211000

Reexamination Certificate

active

07816433

ABSTRACT:
A polyacetal resin composition comprising (A) 100 parts by mass of polyacetal resin generating formaldehyde in an amount of not more than 100 ppm when heated at a temperature of 200° C. for 50 minutes under the nitrogen atmosphere and (B) 0.01 to 5 parts by mass of a hydrazide compound can provide an article which is remarkably reduced in an emission amount of formaldehyde even though molded either at a higher temperature or under molding conditions wherein the resin temperature rises partially. Therefore, the polyacetal resin composition can be molded according to various molding methods and under a wide range of molding conditions. The article molded from the resin composition has succeeded in reducing the emission amount of formaldehyde, measured according to VDA275 method, to not more than 1 mg/kg, the level never achieved before, and therefore is usable for various applications where a reduced VOC is required.

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Machine translation of JP 2000-159850.
English Language Abstract of JP 2000-159850.
English Language Abstract of JP 10-298401.
English Language Abstract of JP 10-036630.
English Language Abstract of JP 4-345648.
English Language Abstract of JP 11-335519.
English Language Abstract of JP 51-111857.
English Language Abstract of JP 2000-239484.
English Language Abstract of JP 2002-212384.
English Language abstract JP 10298401.

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