C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/404
C08F 246/00 (2006.01) C08F 2/32 (2006.01) C08F 216/14 (2006.01) C08F 220/28 (2006.01) C08J 3/03 (2006.01) C08J 3/09 (2006.01) C09D 7/00 (2006.01)
Patent
CA 1295778
ABSTRACT Polymeric Thickeners and their Production Polymers are made by polymerisation of an ionic monomer such as methacrylic acid or dialkylaminoalkyl (meth)-acrylate or -acrylamide and/or a substantially non-ionic monomer, optionally a cross linking agent, and an allyl ether of the formula CH2=CR'CH2OAmBnApR whexe R' is hydrogen or methyl, A is propyleneoxy or butyleneoxy, B is ethyleneoxy, n is zero or an integer, m and p are zero or an integer less than n, and R is a hydrophobic group of at least 8 carbon atoms. The polymers are preferably made by oil in water emulsion polymerisation. They can be used as thickeners particularly in environments containing surfactant and/or electrolyte, including especially emulsion paints, print pastes, alkaline liquors and acidic liquors.
515534
Farrar David
Hawe Malcolm
Borden Ladner Gervais Llp
Ciba Specialty Chemicals Water Treatments Limited
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