Deinking agent of nonionic surfactants
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United States of America Patent
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Dec 10, 1996
Issued Date -
N/A
app pub date -
May 25, 1995
filing date -
Apr 22, 1994
priority date (Note) -
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Abstract
A deinking composition comprises a synergistic combination of a first nonionic surfactant material represented by the formula: R--Ph--(OC.sub.2 H.sub.4).sub.m --(OC.sub.3 H.sub.6).sub.n --(OC.sub.4 H.sub.8).sub.p --R.sup.1 wherein R is an aliphatic hydrocarbon group containing from about 5 to 20 carbon atoms, Ph is a bivalent phenylene group, R.sup.1 is selected from the group consisting of chloro, C.sub.1 -C.sub.5 alkoxy, phenoxy and phenyl (C.sub.1 -C.sub.3)alkoxy, m, n and p are each a number of between 0 and about 50, provided that n is a number less than 11, the sum of m, n and p is between about 1 and 50; a second deinking nonionic surfactant material(s); and an optional nonpolar solvent(s).
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