Polymer compositions comprising cyclic olefin polymers, polyolefin modifiers and non-functionalized plasticizers

• Main Authors: CHAPMAN BRYAN R, BERLUCHE ENOCK, BAUGH LISA SAUNDERS
• Format: Patent
• Language: English
• Published: 03.04.2012
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

This invention relates to a polymer composition comprising a blend comprising: (a) greater than 30 wt (based upon the weight of the composition) of a cyclic olefin polymer having a Tg greater than 60° C. and having a Tm heat of fusion ( Hf) of 40 J/g or less selected from the group consisting of: i) copolymers comprising at least one acyclic olefin and at least 15 mole % of one or more cyclic olefins; ii) partially or completely hydrogenated copolymers comprising at least one acyclic olefin and at least 15 mole % of one or more cyclic olefins; iii) metathesis copolymers comprising two or more cyclic olefins; iv) partially or completely hydrogenated metathesis copolymers comprising two or more cyclic olefins; v) metathesis homopolymers comprising cyclic olefins; vi) partially or completely hydrogenated metathesis homopolymers comprising cyclic olefins; and vii) mixtures thereof; (b) from 1 to 50 wt % (based upon the weight of the composition) of an acyclic olefin polymer modifier having a glass transition temperature of less than 0° C.; (c) from 0.1 to 50 wt % (based upon the weight of the composition) of a non-functionalized plasticizer having a kinematic viscosity at 100° C. of 3 to 3000 cSt, a viscosity index of 120 or more, a pour point of 0° C. or less and a flash point of 200° C. or more.