Polyamines having at least two amine groups are incorporated into a polymer system comprising an anionic surfactant and a polymer having at least one anionic pendant group. The resulting polymer system typically exhibits at least one improved physical property.
A method for preparing a pressure sensitive paper label is provided. The method is particularly useful on filled papers, especially papers filled with inorganic fillers containing multivalent cation. The pressure sensitive adhesive contains from 0.1 percent to 5 percent of a selected acid monomer, and 99.9 percent to 95 percent of at least one ethenically unsaturated monomer. Paper labels made by the method of this invention have superior age-resistance properties, and may be applied to a wide variety of substrates such as paper, metal, glass, wood, painted surfaces, corrugated board and plastic.
A web of adhesive, especially a normally tacky and pressure-sensitive adhesive, is rendered electrically conductive by imparting a pattern of electrically conductive elements that extend from slightly beyond one face of the web to slightly beyond the other face of the web. In a preferred embodiment, the adhesive web is sandwiched between release liners formed of uniaxially oriented film and a conductive thread stitched through both the liners and the adhesive web. The liners can be removed, tearing along the stitch lines, to create an electrically conductive adhesive web.
