Endo alicyclic end capped polyimide resins

Abstract

Abstract POLYIMIDE RESINS HAVING HIGH TEMPERATURE STABILITY CAN BE MADE BY CURING CHEMICALLY STABLE ALICYCLIC ENDO END CAPPED AROMATIC PREPOLYMERS. THE PREPOLYMERS CAN BE MADE BY REACTING PORPER STOICHIOMETRIC AMOUNTS OF AN AROMATC TETRACARBOXYLIC ACID OR DERIVATIVE WITH AN AROMATIC DIAMINE OR DIISOCYANATE, AND AN END CAPPAING COMPOUND HAVING THE FORMULA: 1-Y2,2-Y3,3-Y4,4-Y5,1,4-(-X-),5-Y6,5-Y7,6-Y1,6-(Z2-Z1-) CYCLOHEX-2-ENE WHEREIN Y1-Y6, INCLUSIVE, CAN BE HYDROGEN, HALOGEN, NITRO, ARYL, ALKYL, ALKYL ETHER, OR ALKYARYL; X CAN BE CARBONYL, OXYGEN, SULFUR, METHYLENE, HALOGEN, SUBSTITUTED METHYELEN, ALKYL SUBSTITUTED METHYLENE, OR ARYL SUBSTITUTED METHYLENE; Z1 CAN BE AN ARYLENE OR AN ALKYLENE GROUP HAVING 0 TO 4 CARBON ATOMS; Z2 IS AN AMINE OR AN ISOCYANATE, AND Y7 CAN BE HYDROGEN, HALOGEN, NITRO, ARYL, ALKYL, ALKYL ETHER, ALKARYL, OR AMINO IN A STABLE COMBINATION WITH Y6. THE END CAPPING COMPOUND CAN BE SYNTHESIZED BY REACTING A CYCLO DIOLEFIN WITH AN OLEFINIC COMPOUND ACCORDING TO DIELS-ALDER REACTION.

Inventors

• 👤 R Jones
• 👤 E Burns

Bibliographic Details