US 6,649,733 B1Granted

Polymeric thickeners for aqueous compositions

AssigneeCognis Corporation

InventorsMichael S. Wiggins, Reuben H. Grinstein

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Abstract

Latexes are thickened by compounds of the formula: R1—(O—A)a—B1—R2—(B2—R3)d—(B3—(A′—O)b-f—(A′—B4)f—R4—(B5—R5)e)n—B6—(A″O)c—R6 wherein: R1 and R6 are monovalent hydrophobic groups independently selected from the group consisting of an aliphatic group, a substituted aliphatic group, an aromatic group, and a substituted aromatic group; R2 and R4 are independently selected from the group consisting of aliphatic, substituted aliphatic, aromatic, or substituted aromatic radicals, each radical being divalent or trivalent; R3 and R5 are independently selected from hydrogen, lower alkyl and lower aralkyl; B1, B2, B3, B4, B5, and B6 are linking groups independently selected from the group consisting of an oxygen atom (to form the ether linkage —O—), a carboxylate group (to form an ester linkage R2—C(O)—O— and/or R4—C(O)—O—), an amino group (to form the amine linkage R2—N(R)— and or R4—N(R)—, wherein R is hydrogen, lower alkyl, lower aralkyl, or lower acyl), and an amido group (to form the amide linkage R2—N(R)—C(O)— and/or R4—N(R)—C(O)—, wherein R is hydrogen, lower alkyl, lower aralkyl, or lower acyl); each of a, b, c, d, e, f, and n are integers, wherein each of a and c are independently any integer from greater than 20 to about 200; b is any integer from greater than 20 to about 450; d, e, and f are zero or 1; and n is any integer from 1 to about 5; and each of A, A′, and A″ is independently an ethylene, 1,2-propylene, 1,2-butylene unit or combinations thereof.

Claims26

Dependent claims

A compound of the formula:

R1—(O—A)a—B1—R2—(B2—R3)d—(B3—(A′—O)b-f—(A′—B4)f—R4—(B5—R5)e)n—B6—(A″O)c—R6
formed by reaction under basic conditions of:
a) at least one member selected from the group consisting of R1(O—A)aOH and R1(O—A)aNH2 (II);
b) at least one member selected from the group consisting of R6(OA″)cOH and R6(OA″)cNH2 (IV);
c) at least one member selected from the group consisting of HO(A′O)bH and H2N(A′—O)nA′NH2 (III);
d) a linking compound of the formula YR2—(Y′)d—Y″;
and
e) optionally a compound of the formula R5BY′″ and R3Y″″
wherein:
R1 and R6 are monovalent hydrophobic groups having from 4 to about 50 carbon atoms, independently selected from the group consisting of an aliphatic group, an aromatic group, and an aralkyl group;
R2 and R4 are independently selected from the group consisting of alkanetriyl groups having from 2 to 10 carbon atoms and aralkylene groups having one benzenoid ring and from 1 to 10 aliphatic carbon atoms;
R3 and R5 are independently selected from hydrogen, lower alkyl and lower aralkyl;
B1, B2, B3, B4, B5, and B6 are linking groups independently selected from the group consisting of an oxygen atom, a carboxylate group, an amino group, and an amido group;
Y, Y′, Y″, are independently selected from the group consisting of halo, epoxy and carboxyl, Y′″ and Y″″ are selected from the group consisting of halo and hydroxyl and wherein Y, Y′, Y″, Y′″ and Y″″ are selected to provide the required
each of a, b, c, d, e, f, and n are integers, wherein each of a and c are independently any integer from greater than 20 to about 200;
b is any integer from greater than 20 to about 450;
d, e, and f are zero or 1:
and n is any integer from 1 to about 5;
and
each of A, A′, and A″ is independently an ethylene, 1,2propylene, 1,2-butylene group at combinations thereof.

17 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/236,328Filed 9 May 1994 · continuation in part
Priority: 27 May 1993
Granted: 18 Nov 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

A61K 8/86
Obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds: polyethers
A61Q 19/00
Preparations for care of the skin
C08G 63/672
Derived from polycarboxylic acids and polyhydroxy compounds: dicarboxylic acids and dihydroxy compounds
C08G 69/26
Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids: derived from polyamines and polycarboxylic acids