Pulverulent binder composition
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United States of America Patent
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Issued Date -
Aug 21, 2003
app pub date -
Jan 23, 2003
filing date -
Feb 14, 2002
priority date (Note) -
Abandoned
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Abstract
Pulverulent compositions for binding particulates, comprise A) 10 to 99.99 parts of at least one pulverulent interpolymer having a glass transition temperature Tg or a melting temperature of .gtoreq.30.degree. C. and containing units derived from a1) comonomer(s) of vinyl esters of optionally branched C.sub.1-18 alkylcarboxylic acids, (meth)acrylic esters of optionally branched C.sub.1-15 alcohols, dienes, olefins, vinyl aromatics or vinyl halides, and a2) from 0.1 to 50% by weight, based on the total comonomer weight, of ethylenically unsaturated functional comonomers; B) 0 to 89.99 parts by weight of a pulverulent compound which bears two or more functional groups capable of reacting with functional groups of interpolymer A); and C) 0.01 to 90 parts by weight of a melt viscosity depressant having a glass transition temperature Tg or a melting temperature of .ltoreq.150.degree. C.
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