| 摘要 |
PROBLEM TO BE SOLVED: To provide a processing auxiliary which can give a preferred influence on surface and fluid properties of a synthetic polymer composition and can improve surface applicability and uniformity. SOLUTION: The processing auxiliary is a carboxylate processing auxiliary material having (1) at least 18C atoms; (2) a number-average molecular weight of 300-10,000; and (3) a 8-100C polycarboxylic acid component containing a partial ester obtained by reacting a polycarboxylic acid component comprising a saturated or unsaturated aliphatic polycarboxylic acid, a saturated or unsaturated alicyclic polycarboxylic acid or an anhydride of the polycarboxylic acid with a monoalcohol which may contain a saturated or unsaturated aliphatic or an alicyclic monoepoxide, an aromatic monoepoxide and an ether group, to react 10-90% of carboxyl groups in the polycarboxylic acid. COPYRIGHT: (C)2003,JPO
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