C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/04 (2006.01) C08F 283/00 (2006.01) C08G 18/00 (2006.01) C08G 18/10 (2006.01) C08G 18/42 (2006.01) C08G 18/48 (2006.01) C08J 3/07 (2006.01)
Patent
CA 2214470
The invention is directed to a process for preparing aqueous polymeric dispersions comprising a dispersion of an interpenetrated polymer of a hydrophobic polyurethane and a polymer prepared from one or more ethylenically unsaturated monomers and optionally a dispersion of a polymeric performance enhancer comprising the steps of providing a mixture of polyurethane prepolymer and one or more ethylenically unsaturated monomers, dispersing the mixture with water, optionally containing polyamines, in the presence of dispersing aids until a phase inversion occurs, and then polymerising the ethylenically unsaturated monomer or monomers using conventional free radical vinyl-addition polymerization techniques. The ethylenically unsaturated monomers maybe substantially hydrophobic and the polyamines preferably are diamines.
Futakuchi Osamu
Kielbania Andrew J.
Kukkala Pravin K.
Ablestik Laboratories
Borden Ladner Gervais Llp
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