Inventors:
Thomas M. Vickers - Concord OH
Runhai Lu - Stow OH
Lynn E. Brower - Solon OH
Samy M. Shendy - Cuyahoga Falls OH
Rainer Packe-Wirth - Trostberg, DE
Hong Gao - San Jose CA
International Classification:
C08G 6900, C04B 2412, C04B 2424
Abstract:
A substantially non-crosslinked polymer cementitious composition dispersant for the improvement of the fluidity of cementitious compositions comprising hydrophilic side chain substituted polyimide or polyamide backbone units, having at least some proportion of grafted oligomeric or polymeric hydrophilic side chains linking at least one of amides, esters, and thioesters, wherein the polymer cementitious composition is water soluble, and wherein crosslinking is such that in a statistical sampling there is greater than zero to less than 0. 1 mole % of backbone units involved in crosslinking.