Block copolymer with condensation or vinyl polymer, functions imparting, and lower cohesive E segments
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United States of America Patent
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Mar 19, 2002
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N/A
app pub date -
Apr 19, 2000
filing date -
May 9, 1996
priority date (Note) -
Expired
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Abstract
A functional block copolymer useful as a compatibilizing agent for a blend of a condensation polymer and vinyl polymer comprises segments of a condensation polymer and a vinyl polymer derived from a reactive functional group-containing monomer or a functions-imparting monomer such as ultraviolet absorption or flame retardant functions. The block copolymer can further include a segment of a lower cohesive energy polymer. The condensation or vinyl polymer segment, or the lower cohesive energy polymer segment contains azo or peroxide groups which act as a polymerization initiator for the copolymerization of the vinyl monomer forming the vinyl polymer segment.
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