Accession Number : ADD014739

Title :   Bislactone Curing Agents for Epoxy Resins and Polymers Obtained Therefrom.

Descriptive Note : Patent Application, Filed 29 Mar 90,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Sikes, Allison M ; Brady, Robert F

Report Date : 29 Mar 1990

Pagination or Media Count : 39

Abstract : Bislactone curing agents are used to cure and copolymerize with epoxy-based resins. Preferably, the copolymerization is performed using a tertiary amine catalyst. During cure, the bislactone ring opens and expands. The use of bislactones as curing agents for epoxy-based resins avoids the shrinkage and accompanying stresses which occur when epoxy-based resins are cured conventionally. The novel bislactone cured epoxy-based polymers according the present invention are less prone to failure that are conventional epoxy-based polymers. In a further embodiment, the epoxy is copolymerized with a novel bislactone monomer having at least one trifluoromethyl group. The resulting fluorinated copolymer has a reduced surface energy.(ttl)

Descriptors :   PATENT APPLICATIONS

Subject Categories : Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE