申请人:Gulf Oil Corporation
公开号:US04097449A1
公开(公告)日:1978-06-27
A homogeneous mixture of polyanhydride molecules and epoxide molecules is prepared by the copolymerization of an olefinically unsaturated monomer capable of polymerization by free-radical means with an olefinically unsaturated monoanhydride in the presence of an olefinically saturated polyanhydride, an epoxy composition, and an anhydride accelerator without substantial anhydride-epoxide cross-linking. As an example, reinforcing glass fibers are impregnated with a solution of 1-hexene, maleic anhydride, styrene-maleic anhydride copolymer, a diglycidyl ether of bisphenol A and 1-methylimidazole and the resin is thickened in situ by copolymerization of the 1-hexene and maleic anhydride to form a moldable, homogeneous mixture of 1-hexene-maleic anhydride copolymer, styrene-maleic anhydride copolymer, diglycidyl ether of bisphenol A, 1-methylimidazole and reinforcing glass fibers.
通过自由基聚合的方式,将具有聚合能力的烯烃不饱和单体与烯烃不饱和一元酸酐在烯烃饱和的聚酸酐、环氧组成物和酸酐催化剂的存在下共聚合成聚酸酐分子和环氧分子的均质混合物,且不会发生实质性的酸酐-环氧交联。例如,用1-己烯、马来酸酐、苯乙烯-马来酸酐共聚物、双酚A的二缩水甘油醚和1-甲基咪唑溶液浸渍增强玻璃纤维,然后通过1-己烯和马来酸酐的共聚合使树脂原位变稠,形成可塑性、均质的1-己烯-马来酸酐共聚物、苯乙烯-马来酸酐共聚物、双酚A的二缩水甘油醚、1-甲基咪唑和增强玻璃纤维的混合物。