POLYVINYL ACETAL/POLYESTER GRAFT COPOLYMER, AND DISPERSANT
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United States of America Patent
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Issued Date -
Sep 27, 2012
app pub date -
Oct 27, 2010
filing date -
Dec 4, 2009
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Abandoned
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Abstract
A polyvinyl acetal/polyester graft copolymer obtained from a polyvinyl acetal having one or more of each of constituent units represented by the following general formulae (1) to (3) (wherein each of R1 and R2 represents a hydrogen atom, a linear or branched alkyl group having a carbon number of from 1 to 20, or an aryl group, in which the alkyl group or the aryl group may have a substituent) and having a weight average molecular weight of from 100 to 100,000 is used as a dispersant which prevents aggregation of solid particles in a dispersion liquid from occurring, is effective for forming a stable dispersion liquid, and exhibits excellent heat resistance.
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