申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0335506A1
公开(公告)日:1989-10-04
The present invention provides a themoplastic resin composition which is superior in mechanical properties, especially less in reduction of flexural modulus when absorbing water and superior in processability. This composition comprises:
(A) 10 - 70 parts by weight of a polyphenylene ether, a mixture of a polyphenylene ether and a polystyrene or a polyphenylene ether-styrene graft copolymer,
(B) 90 - 30 parts by weight of a mixture of (i) a thermoplastic aromatic copolyamide and/or an aromatic nuclear-hydrogenated copolyamide in an amount of 0.1 - 70 % by weight of existing total polyamide and (ii) a thermoplastic aliphatic polyamide in a complementary amount of 99.9 - 30 % by weight of existing total polyamide, and
(c) 0.01 - 30 parts by weight, based on 100 parts by weight of the above components (A) and (B) of, at least one compound selected from the group consisting of oxazoline and a compound having, in its molecule, (a) carbon-carbon double bond or a carbon-carbon triple bond and (b) at least one functional group selected from carboxyl group, acid anhydride group, amino group, acid amide group, imido group, epoxy group, carboxylate ester group, isocyanate group, methylol group, oxazolidine group and hydroxyl group.
This composition may further contain an impact strength modifier, namely, rubber-like material and/or modified rubber-like material.
本发明提供了一种机械性能优异,尤其是吸水后弯曲模量降低较少,且加工性能优异的热塑性树脂组合物。这种组合物包括
(A) 10 - 70 重量份的聚苯醚、聚苯醚和聚苯乙烯的混合物或聚苯醚-苯乙烯接枝共聚物、
(B) 90-30(重量份數)以下兩者的混合物:(i)熱塑性芳香族共聚醯胺及 /或芳香族核氫化共聚醯胺,其重量份數為現有聚醯胺總重量的 0.1-70%;及(ii)熱塑性脂肪族聚醯胺,其補充量為現有聚醯胺總重量的 99.9-30%,及
(c) 0.(c) 以上述组分(A)和(B)的 100 重量份数为基准,0.01 - 30 重量份数的至少一种选 自噁唑啉和一种在其分子中具有以下特征的化合物所组成的组的化合物、(a) 碳碳双键或碳碳三键和 (b) 至少一个官能团,选自羧基、酸酐基、氨基、酸酰胺基、亚胺基、环氧基、 羧酸酯基、异氰酸酯基、甲醇基、噁唑烷基和羟基。
这种组合物还可进一步含有抗冲击强度改性剂,即橡胶类物质和/或改性橡胶类物质。