International Business Machines Corporation

William Joseph

Konstantinos I Papathomas

Alfred Viehbeck

Jeffrey Curtis Hedrick

Niranjan Mohanlal Patel

Jeffrey T Gotro

A composition comprising a thermoset resin which may or may not contain fluorine, bromine or both and containing at least one bromine-containing homo- or multicomponent thermoplastic polymer modifier optionally containing a different halogen which is soluble in the thermoset. Said thermoplastic polymer undergoes an in-situ phase separation process during cure to form a microphase-separated multiphase thermoset material.

Homo-, co-  or multicomponent thermoplastic polymer dispersed in a thermoset resin

The present invention relates to a curable thermosetting resin composition having enhanced fracture toughness as a results of the incorporation of reactive thermoplastic oligomers therein. More specifically, the present invention relates to a composition comprising a thermoset resin which contains fluorine and containing at least one fluorine containing thermoplastic homopolymer component which is soluble in the thermoset. Said thermoplastic polymer undergoes an in-situ phase separation process during cure to form a microphase separated multiphase thermoset material.

Homo-, co- or multicomponent thermoplastic polymer dispersed in a

A composition having enhanced fracture resistance comprising a heat curable reaction product of a fluorine-containing thermoset material and a fluorine-containing homopolymer, wherein the cured reaction product comprises the thermoset material having a plurality of discrete phases of said fluorine-containing homopolymer dispersed therein, the homopolymer phases being in the range of micron to submicron size.

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Minneapolis, MN, United States of America

William Joseph