Copolymerization of cyclic ester oligomers

Details Copolymerization of cyclic ester oligomers Copolymerization of cyclic ester oligomers

C - Chemistry, Metallurgy

08

G

C08G 63/16 (2006.01) C08G 63/78 (2006.01) C09D 167/02 (2006.01) C08G 63/181 (2006.01) C08G 63/183 (2006.01) C08G 63/672 (2006.01)

Patent

CA 2489795

Chemically different cyclic ester oligomers can be copolymerized to form copolyesters whose properties can be tailored by the choice of cyclic ester oligomers used. The copolyesters formed are especially useful as encapsulants and as coatings. In many instances the copolyesters, assuming they are not randomized in later transesterification reactions, have unique microstructures related to the sequencing of repeat units the their polymer chains.

L'invention concerne des oligomères d'esters cycliques, qui diffèrent sur le plan chimique, pouvant être copolymérisés afin de former des copolyesters dont les propriétés peuvent être individualisées par le choix des oligomères d'esters cycliques utilisés. Les copolyesters formés s'utilisent notamment comme encapsulants et comme revêtements. Dans de nombreux exemples, les copolyesters, dans l'hypothèse où ils ne sont pas randomisés dans des réactions de transestérification, présentent des microstructures uniques se rapportant au séquençage d'unités de répétition de leurs chaînes polymères.

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