C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/56.3
C04B 24/28 (2006.01) C04B 24/26 (2006.01) C04B 24/32 (2006.01) C08G 18/28 (2006.01) C08G 18/72 (2006.01) C08G 18/81 (2006.01)
Patent
CA 2286975
There is provided a cement composition having improved fluidity comprising cement and an addition copolymer of (a) an adduct of a polyether polyol and an ethylenically unsaturated isocyanate with (b) an ethylenically unsaturated carboxylic acid.
L'invention concerne une composition de ciment présentant une fluidité améliorée. Cette composition comprend du ciment et un copolymère d'addition de (a) un composé d'addition d'un polyol de polyéther et d'un isocyanate insaturé en éthylène avec (b) un acide carboxylique insaturé en éthylène.
Mcdaniel Kenneth G.
Shawl Edward T.
Zhou Xinhau
Arco Chemical Technology L.p.
Osler Hoskin & Harcourt Llp
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