公开(公告)号：EP1934271A2

公开(公告)日：2008-06-25

申请号：EP06814044.1

申请日：2006-08-31

申请人： Elementis Specialties, Inc.

发明人： GEURTSEN, Richard, Alexander ,  MANGNUS, Eduardus, Maria

IPC分类号： C08G18/42 ,  C08K5/07

CPC分类号： C08G63/916 ,  C08L67/00 ,  C09D7/43

摘要： A thixotropy imparting composition. The composition comprises the reaction products of: one or more polyesters from one or more polyols having at least two hydroxyl moieties; and one or more polycarboxylic acids having at least two carboxylic acid moieties; and one or more basic compounds, wherein said polyesters have at least two active carboxylic acid moieties as end groups and at least a portion of said carboxylic acid moieties are in the carboxylate anion form. This composition may further comprise one or more diluents. The composition exists as a liquid. The composition may be used in a non-aqueous fluid system as a rheological additive in combination with one or more particulate materials, wherein said rheological additive imparts thixotropy to said system. A thixotropy imparting composition. The composition comprises the reaction products of: one or more polyesters from one or more polyols having at least two hydroxyl moieties; and one or more polycarboxylic acids having at least two carboxylic acid moieties; wherein said polyesters have at least two active carboxylic acid moieties as end groups. This composition may further comprise one or more diluents. The composition may exist as a liquid. The composition may be used in a non-aqueous fluid system as a rheological additive in combination with one or more particulate materials, wherein said rheological additive imparts thixotropy to said system.

公开(公告)号：EP1931742A2

公开(公告)日：2008-06-18

申请号：EP06814277.7

申请日：2006-09-07

申请人： Elementis Specialties, Inc.

发明人： GEURTSEN, Richard, Alexander ,  PACZKOWSKI, Mark, A. ,  CAMPBELL, Barbara, A.

IPC分类号： C09D109/04 ,  C08L53/00 ,  C08F265/10

CPC分类号： C08G18/4277 ,  C08G18/283 ,  C08G18/44 ,  C08G18/4854 ,  C08G18/73 ,  C08G18/753 ,  C08G18/755 ,  C09D175/04

摘要： A water-borne latex paint system, comprising a base paint, an associative thickener, a colorant compound, and at least 0.1% dry weight of a block copolymer ABCBA composition. For the ABCBA polymer wherein the A component is a hydrophobic group A, the B component is a hydrophilic polymer B and the C component is a low molecular weight hydrophobic group C. The ABCBA-type polymer includes an A component which is a monomer unit containing a moiety selected from the group consisting of an alkyl group, an aryl group or an alkyl aryl group, the B component includes poly(ethylene glycol), and the C component is selected from the group of diols consisting of poly(tetrahydrofuran), poly(caprolactone) poly(carbonate), ethylene glycol, propylene glycol, and 1,2-dodecanediol. The block copolymer acts as a viscosity stabilizer in the presence of associative thickeners.