Pressure sensitive adhesive composition and coated product
AssigneeScott Paper Company
InventorsGerald G. Grzywinski, Edward J. Foley
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Abstract
Disclosed is an improved pressure-sensitive adhesive composition comprising an unvulcanized elastomer component comprising at least one block copolymer of styrene and either isoprene or butadiene with a polystyrene block on at least one end of the block copolymer, a tackifying resin component compatible with the elastomer component, a plasticizer component, and a modifier component of unvulcanized cis-1,4-polybutadiene. Also disclosed is the pressure-sensitive adhesive structure comprising a web of material, such as paper, upon which is coated a layer of the above-described composition.
Claims5
A pressure-sensitive adhesive composition comprising a mixture of:
- A. 100 parts by weight of an unvulcanized elastomer component comprising at least one block copolymer of styrene and either isoprene or butadiene, with a polystyrene block on at least one end of the block copolymer;
- B. about 100 to about 250 parts by weight of a tackifying resin component compatible with the elastomer component;
- C. about 10 to about 75 parts by weight of a plasticizer component;
- and
- D. about 2 to about 100 parts by weight of a modifier component consisting essentially of unvulcanized cis-1,4-polybutadiene.
Dependencies are inferred from the claim text.