High temperature resistant antistatic pressure-sensitive adhesive tape
AssigneeMinnesota Mining and Manufacturing Company
InventorsGustav Gutman, Steven D. Yau
Life of this patent
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Abstract
A heat-resistant anti-static pressure-sensitive adhesive tape comprising a substrate having coated thereon an acrylic microparticulate adhesive having an average diameter of at least about 1 micrometer, wherein the microparticles have a surface bearing thereon a conductive material formed from a polymer electrolyte base polymer, and at least one ionic salt selected from the group consisting of salts of alkali metals and salts of alkaline earth metals, said adhesive being adhered to said substrate by means of a primer, said primer comprising at least one phenolic resin and at least one rubbery compound, said adhesive tape being capable of surviving immersion in molten solder for at least about 5 seconds.
Claims17
A heat-resistant anti-static pressure-sensitive adhesive tape comprising a substrate having opposing surfaces, at least one of said surfaces bearing thereon a acrylic microparticulate adhesive having an average diameter of at least about 1 micrometer, wherein the microparticles have a surface bearing thereon an ionic conductive material formed from a polymer electrolyte base polymer, and at least one ionic salt selected from the group consisting of salts of alkali metals and salts of alkaline earth metals, said adhesive being bonded to said substrate by means of a primer, said primer comprising at lease one phenolic resin and at least one rubbery compound,
- said adhesive tape being capable of surviving immersion in molten solder at about 260.degree. C. for at least about 5 seconds.
Dependencies are inferred from the claim text.