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COPOLYMER ADMIXTURE SYSTEM FOR WORKABILITY RETENTION OF CEMENTITIOUS COMPOSITIONS
A non-ionic polyether-polyester copolymer for extending workability to a cementitious mixture containing hydraulic cement and water, wherein the copolymer includes residues of at least the following monomers: Component A including an ethylenically unsaturated carboxylic acid ester monomer having a moiety hydrolysable in the cementitious mixture, wherein the hydrolyzed monomer residue has an active binding site for a component of the cementitious mixture; and, at least one of: Component B including an ethylenically unsaturated, carboxylic acid ester or alkenyl ether monomer having at least one C2-4 oxyalkylene side group of about 1 to 30 units; or, Component C including an ethylenically unsaturated, carboxylic acid ester or alkenyl ether monomer having at least one C2-4 oxyalkylene side group of 31 to about 350 units; wherein the molar ratio of Component A to the sum of the molar ratios of Component B and Component C is about 1:1 to about 10:1.
COPOLYMER ADMIXTURE SYSTEM FOR WORKABILITY RETENTION OF CEMENTITIOUS COMPOSITIONS
A non-ionic polyether-polyester copolymer for extending workability to a cementitious mixture containing hydraulic cement and water, wherein the copolymer includes residues of at least the following monomers: Component A including an ethylenically unsaturated carboxylic acid ester monomer having a moiety hydrolysable in the cementitious mixture, wherein the hydrolyzed monomer residue has an active binding site for a component of the cementitious mixture; and, at least one of: Component B including an ethylenically unsaturated, carboxylic acid ester or alkenyl ether monomer having at least one C2-4 oxyalkylene side group of about 1 to 30 units; or, Component C including an ethylenically unsaturated, carboxylic acid ester or alkenyl ether monomer having at least one C2-4 oxyalkylene side group of 31 to about 350 units; wherein the molar ratio of Component A to the sum of the molar ratios of Component B and Component C is about 1:1 to about 10:1.
COPOLYMER ADMIXTURE SYSTEM FOR WORKABILITY RETENTION OF CEMENTITIOUS COMPOSITIONS
COPOLYMERZUSATZSYSTEM ZUR BEWAHRUNG DER VERARBEITBARKEIT VON ZEMENTZUSAMMENSETZUNGEN
SYSTÈME DE MÉLANGE DE COPOLYMÈRES POUR LA CONSERVATION DE LA MANIABILITÉ DE COMPOSITIONS CIMENTAIRES
LORENZ KLAUS (author) / KRAUS ALEXANDER (author) / VICKERS THOMAS (author) / LIANOPOULOS SUZANNE (author) / VISWANATH MAHADEVAN (author)
2016-11-16
Patent
Electronic Resource
English
COPOLYMER ADMIXTURE SYSTEM FOR WORKABILITY RETENTION OF CEMENTITIOUS COMPOSITIONS
European Patent Office | 2016
|Copolymer admixture system for workability retention of cementitious compositions
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