Condensation copolymers having surpressed crystallinity

Details Condensation copolymers having surpressed crystallinity Condensation copolymers having surpressed crystallinity

C - Chemistry, Metallurgy

08

G

C08G 63/08 (2006.01) C08G 69/02 (2006.01) C08G 69/14 (2006.01) C08G 69/36 (2006.01)

Patent

CA 2301659

Condensation copolymers are disclosed which are polymerized from a first monomer which is capable of polymerization by condensation polymerization, e.g., ring opening lactone polymerization, and a second monomer which is effective to suppress the crystallization of the copolymer. It is disclosed that suppression of the crystallization can provide enhanced mechanical properties in films made from the copolymers. As a result, films prepared from the copolymers of the present invention can have properties rendering them suitable for use as biodegradable trash bags as well as for other uses.

Cette invention se rapporte à des copolymères de condensation qui sont polymérisés à partir d'un premier monomère susceptible de subir une polymérisation par condensation, par exemple une polymérisation de lactone par ouverture de cycle, et un second monomère qui supprime efficacement la cristallinité du copolymère. On a découvert que la suppression de la cristallisation permet d'améliorer les caractéristiques mécaniques des films fabriqués à partir de ces copolymères. Par conséquent, les films fabriqués à partir des copolymères de la présente invention peuvent présenter des caractéristiques qui en font des copolymères adaptés à la fabrication de sacs à ordures ménagères, biodégradables, ainsi qu'à d'autres applications.

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