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公开(公告)号：US5110849A
公开(公告)日：1992-05-05
申请号：US565650
申请日：1990-08-10
CPC分类号： C08K5/0008 , C08K5/138
摘要： The present invention concerns a thermoplastic polyester resin composition comprising a thermoplastic polyester and a metal alcoholate salt of an aromatic alcohol containing a hydroxy group directly attached to the aromatic ring as the essential ingredient, having a high crystallization rate, excellent moldability upon molding at low temperature, less molecular weight reduction during production and molding of the resin composition, and satisfactory melt degradation stability and hydrolysis resistance.
摘要翻译： 本发明涉及一种热塑性聚酯树脂组合物，其包含热塑性聚酯和含有直接连接到芳环上的羟基作为必需成分的芳族醇的金属醇盐，具有高结晶速率，在低温成型时具有优异的成型性 在树脂组合物的制造和成型期间减少分子量，并且满足熔融降解稳定性和耐水解性。
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公开(公告)号：US4879328A
公开(公告)日：1989-11-07
申请号：US193951
申请日：1988-05-13
申请人： Hiroo Karasawa , Kiichi Kometani , Kiyomi Okita
发明人： Hiroo Karasawa , Kiichi Kometani , Kiyomi Okita
摘要： Disclosed is a polyester composition comprising (a) 100 parts by weight of an aromatic polyester; (b) 0.005-10 parts by weight of an epoxy compound of the formula (I): ##STR1## (wherein Ar means C.sub.6 -C.sub.20 aromatic group or C.sub.6 l-C.sub.20 alicyclic group, n means an integer of 0-20); and (c) 1-70 parts by weight of at least one elastomer which has at least one functional group selected from the group consisting of epoxy groups, carboxyl group, carboxylate ester groups, carboxylic acid amide groups, acid anhydride group, imide groups, carboxylate salt groups, hydroxyl group, amino group and cyano group, the elastomer having a tensile modulus of 1-6,000 kg/cm.sup.2. The polyester resin composition of the present invention can easily be molded and the obtained molded article excells in mechanical properties such as impact strength. The obtained molded article also excells in flowability and residence stability during the molding, and in hydrolysis stablity, resistance to thermal cycling and in weatherability.
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