C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/3032, 402/40
C08F 8/04 (2006.01) C08F 240/00 (2006.01) C09J 153/02 (2006.01) C09J 157/02 (2006.01)
Patent
CA 1248285
ABSTRACT OF THE DISCLOSURE This invention relates to pressure sensitive adhesive formulations which include a saturated midblock thermoplastic elastomer such as a block copolymer of poly- styrene and hydrogenated polydiene such as Kraton? G and a fully saturated tackifying resin derived from petroleum feedstock polymerized in the presence of aluminum chloride and having a ?n ranging from 400 to 800, a softening point of 40 to 70°C and a glass transition temperature less than 45°C whereby the adhesive formulations have a rolling ball tack of less than 10 cm., a 180° peel of from 1 to 4 pounds per inch, a 90° quick stick of from 0.5 to 2.0 pounds per inch and a Polyken probe tack of higher than 400 g/cm2 with a formulation containing 100 to 180 phr of the saturated tackifying resin.
456320
Hughes Vincent L.
Looney Ralph W.
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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