C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
400/6412
C09J 109/04 (2006.01) C08F 220/12 (2006.01) C08F 265/06 (2006.01) C09J 151/00 (2006.01)
Patent
CA 1291840
ABSTRACT Latex adhesives having a Tg of -60 to 0°C characterized by superior rheological properties, are prepared without the use of additional thickeners from a colloid stabilized latex comprising: 65-90% by weight of the latex polymer solids of an acrylate or methacrylate ester monomer polymerized in 10-35% by weight of the latex solids of a polymeric colloid, the polymeric colloid having a Tg of -40 to 0°C, a number average molecular weight of 2,000 to 10,000 and comprising a) 50 to 85% by weight of a monamer of the formula: CH = ? - CO2R" where R' is hydrogen or methyl and R" is a C1-C12 straight or branched chain alkyl group; b) 10 to 50% by weight of an ethylenically unsaturated mono- or dicarboxylic acid; c) 5 to 30% by weight of an acrylic or methacrylic ester of a polyalkylene oxide, and d) 0 to 30% by weight of another ethylenically unsaturated copolymerizable monomer.
513592
Foreman Paul B.
Iovine Carmine P.
Shih Yen-Jer
Ablestik Laboratories
Borden Ladner Gervais Llp
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