摘要 |
<p>Latex adhesives having a Tg of -60 DEG to 0 DEG 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 DEG to 0 DEG C., a number average molecular weight of 2,000 to 10,000 and comprising (a) 50 to 85% by weight of a monomer of the formula: <IMAGE> 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.</p> |
申请人 |
NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORP., WILMINGTON, DEL., US |
发明人 |
IOVINE, CARMINE P., BRIDGEWATER, NJ 08807, US;SHIH, YEN-JER, SOMERSET, NJ 08873, US;FOREMAN, PAUL B., SOMERVILLE, NJ 08876, US |