| abstract |
Polymers are made by polymerisation of an ionic monomer such as methacrylic acid or dialkylaminoa!kyl (meth)-acrylate or -acrylamide and or a substantially non-ionic monomer, optionally a cross linking agent, and an allyl ether of the formula CH 2 =CR'CH 2 OA m B o A p R where R' is hydrogen or methyl, A is propvieneoxy 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 especialiy emulsion paints, print pastes, alkaline liquors and acidic liquors |