Patent attributes
Disclosed are pressure sensitive adhesive compositions having enhanced water resistance and adhesion properties, which compositions include 70-99 wt % of an acrylic polymer dispersion and 1-30 wt % of a polyolefin dispersion. The acrylic polymer dispersion includes (1) one or more acrylic acid ester or (meth)acrylate acid ester(s), (2) one or more hydrocarbon monomer(s), (3) one or more ethylenically unsaturated carboxylic acid(s), (4) one or more nitrile(s) or amide(s) of an ethylenically unsaturated carboxylic acid(s), (5) one or more vinyl ester(s) of a carboxylic acid(s), optionally (6) one or more nitrogen containing acetoacetoxy functional compound(s), and optionally (7) one or more mercaptan chain transfer agent(s), and the polyolefin dispersion includes one or more polyolefins, which may or may not contain acid functionality.
