06310143 is referenced by 23 patents and cites 112 patents.

The present invention is directed to derivatized polycarboxylate dispersants for cementitious mixtures, including those mixtures with high percentages of pozzolan cement replacement and dry cast applications. In particular, the invention is directed to a cementitious mixture comprising cement, including cements with high percentages of pozzolan cement replacement, water, coarse aggregate, fine aggregate, and including a dispersant, wherein said dispersant is a derivatized polycarboxylate dispersant, or combination of polycarboxylate dispersants, which is a derivatized polymer comprising a backbone having moieties derived from (a) an unsaturated hydrocarbon; (b) at least one of a substituted carboxylic acid monomer, a substituted ethylenically unsaturated monomer, and maleic anhydride; and (c) optionally including an N-polyoxyalkylene succinimide; and wherein derivative moieties are pendant to the backbone monomer by at least one ester linkage and at least one amide linkage. The derivatized polycarboxylate dispersant provides for a longer shelf life dispersant, improved dispersability of cementitious mixtures, water reduction in cementitious mixtures, and is an effective dispersant in high pozzolan replaced cementitious mixtures.

Title
Derivatized polycarboxylate dispersants
Application Number
9/212652
Publication Number
6310143 (B1)
Application Date
December 16, 1998
Publication Date
October 30, 2001
Inventor
John Pickett
Bedford
OH, US
Samy M Shendy
Cuyahoga Falls
OH, US
Lynn E Brower
Solon
OH, US
John Moreau
Macedonia
OH, US
Runhai Lu
Stow
OH, US
Jesse Osborne
Garfield Heights
OH, US
Jeffrey R Bury
Macedonia
OH, US
Rainer Packe Wirth
Cleveland Heights
OH, US
Thomas M Vickers Jr
Concord Township
OH, US
Agent
Renner Kenner Grieve Bobak Taylor & Weber
US
Assignee
MBT Holding
US
IPC
B01F 17/34
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