Abstract: An electrically conductive pressure sensitive adhesive is provided which is prepared by incorporating a conductive black filler into a pressure sensitive adhesive in such a manner as to impart electrical conductivity at a carbon concentration low enough to avoid adversely affecting the physical properties (such as tack) of the adhesive. By practice of the present invention, the carbon particles present in the adhesive are in the form of a carbon structure which optimizes the efficient employment of carbon by providing conductive pathways through the adhesive.

Abstract: A novel polymeric pressure-sensitive adhesive formulation is provided comprised of a hydrophilic base polymer compounded with at least one water-soluble tackifying component. Upon contact of the pressure-sensitive adhesive with excess amounts of water, the water-soluble tackifying component is caused to separate from the base polymer, thus decreasing the ability of the base polymer to function as a pressure-sensitive adhesive. The adhesive may subsequently be easily removed from any substrate to which it has been applied.

Abstract: The adhesive coated foam laminates of the present invention comprise a polyolefin or polyvinyl chloride foam layer coated on one or more sides with a pressure sensitive adhesive which comprises:(a) a block polymer of monovinyl aromatic hydrocarbon and either a conjugated diene or ethylene-butylene;(b) at least two distinct tackifying resins; and(c) at least one oxidation stabilizer.