Elementis Specialties, Inc.

Kenneth F Smith

Eduardus Maria Mangnus

Alart Mulder

Stanley Leon Freeman

Onno Rienstra

Carlo Nicosia

A viscosity regulating composition and its method of manufacture. The composition comprises a mixture of (a) a branched polymer having the formula [M]-[(AO)-L-(AO)&#x2014;R], wherein M is polybranched hydrophobe; AO is a polyoxyalkylene unit; Lis an aliphatic linking segment or an aromatic linking segment each having at least two hydroxyl reactive linking groups; and Ris an aliphatic end unit or aromatic end unit having 6 to 32 carbon atoms; n ranges from 3 to 6; and (b) a polymer having the formula R-(AO)-L-(AO)&#x2014;R, wherein (AO) is a polyoxyalkylene unit, Lis a aliphatic linking segment or an aromatic linking segment, and Ris a aliphatic unit or an aromatic unit each having 6 to 32 carbon atoms.

ICI thickener composition and uses

A composition comprising linked segments of: (a) a polyhydroxy segment derived from a compound independently selected an acyclic polyhydric alcohol having 4 to 6 carbon atoms and 4 to 6 reactive hydroxyl groups; a cyclic polyhydric alcohol having 4 to 6 carbon atoms and 4 to 6 reactive hydroxyl groups, a poly(hydroxyethyl) polyethyleneamine having 4 to 6 reactive hydroxyl groups and combinations thereof; (b) polyoxyalkylene segments wherein each hydroxyl group of the polyhydroxyl segment is linked to a polyoxyalkylene segment; (d) and aliphatic end segments or aromatic end segments, each end segment having 6 to 32 carbon atoms and a hydroxyl reactive group, wherein the mole ratio of the polyoxyalkylene segment to the polyhydroxy segment is at least 4:1 and the mole ratio of the aliphatic or aromatic end segment to the polyhydroxy segment is at least 0.25:1.

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Doylestown, PA, United States of America

Kenneth F Smith