<p>A new class of copolymers obtained via copolymerizing diethynylbenzene with an ethynyl substituted polyimide oligomer has been developed. The copolymers are thermosetting in character and are particularly useful for the fabrication of composite structures such as glass fiber reinforced laminates and molding compounds and graphite fiber reinforced laminates and molding compounds having zero void content.</p>
申请公布号
DE2551869(B2)
申请公布日期
1979.09.20
申请号
DE19752551869
申请日期
1975.11.19
申请人
HUGHES AIRCRAFT CO., CULVER CITY, CALIF. (V.ST.A.)
