公开(公告)号：US3884990A

公开(公告)日：1975-05-20

申请号：US47048574

申请日：1974-05-16

申请人： UNITIKA LTD

发明人： SAKATA HIROSHI ,  ASAHARA NAKABA ,  ASAI YASUHIKO ,  HASEGAWA HIROZO

IPC分类号： C08L67/00 ,  C08G63/193 ,  C08G63/79 ,  C08L67/03 ,  C08G39/10

CPC分类号： C08G63/79 ,  C08G63/193 ,  C08L67/03 ,  Y10S525/934 ,  C08L67/02 ,  C08L67/04 ,  C08L2666/18

摘要： A composition comprising an aromatic co-polyester and poly(ethylene oxybenzoate), in which A. THE AROMATIC CO-POLYESTER IS A RESINOUS PRODUCT REPRESENTED BY THE FORMULA:
WHEREIN X is -O-, -S-, -SO-, -SO2-, an alkylene group or an alkylidene group; R1, R2, R3, R4, R''1, R''2, R''3 and R''4, which may be the same or different, each is a hydrogen atom, a chlorine atom, a bromine atom or a hydrocarbon group having 1 to 6 carbon atoms and n is a positive integer which provides a resinous product; B. THE POLY(ETHYLENE OXYBENZOATE) IS PRESENT IN AN AMOUNT OF FROM 0.1 TO 50 WEIGHT % BASED ON THE SUM OF THE WEIGHT OF THE AROMATIC CO-POLYESTER AND THE POLY(ETHYLENE OXYBENZOATE); AND C. THE

MOIETY IN THE ABOVE FORMULA IS A TEREPHTHALIC ACID UNIT OR AN ISOPHTHALIC ACID UNIT, AND IS PRESENT IN THE AROMATIC COPOLYESTER AT A MOLAR RATIO OF 9:1 TO 1:9, RESPECTIVELY, USEFUL AS A COMPOSITION FOR PRODUCING MOLDED ARTICLES HAVING IMPROVED HYDROLYSIS, CRACKING AND CRAZING RESISTANCE.

摘要翻译： 包含芳族共聚酯和聚（乙烯氧苯甲酸酯）的组合物，其中A.芳族聚酯是由该公式表示的树脂产品：