ICI thickener composition and uses

An aqueous thickener composition comprising:

• 5 wt. % to 50 wt. % of a composition, comprising linked segments of:
• (a) a polyhydroxy segment derived from a compound independently selected from the group consisting of 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;
• (c) 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;
• and
• 0.1 wt. % to 25 wt. % of a viscosity suppressing additive is a combination of an organic co-solvent, a surfactant, and the balance being water.

An aqueous thickener composition comprising:

• 5 wt. % to 50 wt. % of a composition comprising linked segments of:
• (a) a polyhydroxy segment derived from a compound independently selected from the group consisting of 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;
• (c) 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;
• and
• 0.1 wt. % to 25 wt. % of a viscosity suppressing additive of a cyclodextrin compound and the balance being water.