| abstract |
General purpose inherently tacky acrylic pressure sensitive adhesive polymersnformed of alkyl acrylates, vinyl esters, and saturated carboxylic acids, havingnimproved properties, a lower residual monomer content are formed by a sequentialnemulsion polymerization process in which 40 to 70 percent, typically 45 percent, ofnthe monomers are incrementally added to a reactor as a first charge containingnsubstantially all of the vinyl esters, the balance of the monomers being fed in ansecond incremental charge. |