To provide a cylinder head cover which is capable of holding high mechanical strength and dimensional stability under a high temperature and further is excellent in durability for chemical such as calcium chloride at a high temperature by using specified polyketone resin.
An automobile cylinder head cover is formed by polyketone resin which is polyketone copolymer made of repeated units shown by expressions I, II and has 0.01 to 0.10 of y/x, preferably 0.05 to 0.10 or below when mole % of each polyketone copolymer shown by the expressions I, II in polymer is defined as each of x, y. If necessary, a fibrous and/or non-fibrous filling material 10 to 300 weight part may be blended in a polyketone resin 100 weight part and elastomer having a glass-transition temperature of 20° or below, preferably olefine system elastomer may be blended in the polyketone resin 100 weight part.
YAMAUCHI KOJI
INOUE SHUNEI
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