C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 220/56 (2006.01) C04B 24/26 (2006.01) C08F 220/12 (2006.01) C08F 220/58 (2006.01) C08F 222/10 (2006.01) C08F 226/10 (2006.01) C08F 228/02 (2006.01) C08F 230/02 (2006.01) C09J 133/26 (2006.01) C08F 220/18 (2006.01)
Patent
CA 2306020
The open time of a cementitious composition, such as a grout, may be increased by the incorporating therein, as a binder, a polymer composition comprising a film- forming copolymer formed by polymerisation of a monomer mixture comprising 1 to 3% of at least one monomer selected from the group of monomers consisting of amides of .alpha.,.beta.-unsaturated C3 to C6 carboxylic acids and N-vinyl lactams, and at least one hydroxy-(C1 to C8)alkyl (meth)acrylate monomer, wherein the total amount of these monomers is from 2 to 7.5% by weight of said monomer mixture.
Bacho Anne Margaret
Hinz Frederick Paul
Kesselmayer Mark Alan
Koziski Kathleen Anne
Mccoll Fergus Stuart
Gowling Lafleur Henderson Llp
Rohm And Haas Company
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