Patent ID: 6100345
Filing Date: 2000-08-08
Classification: C08F,C08G,C08L

Abstract:
A thermally resistant polyphenylene oxide compound having an acid group and being represented by the following formula (2), wherein the acid group is neutralized with a neutralization equivalent amount of a basic metal compound effective to neutralize the acid group, the basic metal compound containing a metal selected from the group consisting of Al, Ga, In, Tl, Ge, Sn, Pb and Bi; ##STR4## wherein R.sup.2 and R.sup.3 independently represent methyl group, or an acid group selected from the group consisting of carboxymethyl group, sulfonic methyl group, --CH.sub.2 PO(OH).sub.2, and --CH.sub.2 OPO(OH)2; R.sup.4 and R.sup.5 independently represent an acid group selected from the group consisting of sulfonic (acid) group, carboxyl group, PH(OH).sub.2, OPO(OH).sub.2 and hydroxyl group; and ""p"" is a polymerization degree, the polyphenylene oxide compound having a weight average molecular weight ranging from about 5,000 to about 100,000 and comprising from about 1 to about 15 mol % of the acid group.