公开(公告)号：US3732332A

公开(公告)日：1973-05-08

申请号：US3732332D

申请日：1970-10-16

Applicant: ALLIED CHEM

Inventor： CURTIS O ,  TULLER H ,  O NEILL C ,  NUSSBAUM R

IPC: C08F8/00 ,  C08F12/12 ,  C08F22/00 ,  C08L35/06 ,  C08L63/00 ,  C08G45/04

CPC classification number: C08F212/08 ,  C08F8/14 ,  C08F22/00 ,  C08F212/12 ,  C08F222/08 ,  C08F2800/10 ,  C08F2800/20 ,  C08L35/06 ,  C08L63/00 ,  C08L2666/14 ,  C08L2666/04

Abstract: POLYANHYDRIDES ARE PRODUCED BY A NOVEL BULK POLYMERIZATION PROCEDURE FROM MALEIC MONOMERS AND ALKYL STYRENES. THE POLYANHYDRIDES, OF LOW MOLECULAR WEIGHT AND CONTAINING MALEIC MONOMER TO ALKYL STYRENE IN A RATIO GREATER THAN 1 TO 1, ARE PARTICULARLY USEFUL AS HARDENERS FOR EPOXY RESIN-CONTAINING COMPOSITION AND GIVE RISE TO EPOXY COMPOSITIONS WHICH RESULT IN CURED PRODUCTS EXHIBITING HIGH HEAT DISTORTION TEMPERATURES AND EXCELLENT ELECTRICAL AND SELF LIFE PROPERTIES.