Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1998-01-05
1999-07-27
Niland, Patrick D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
524270, 524590, 524499, 525455, C08J 300, C08K 320, C08L 7500, C08F 830
Patent
active
059291672
ABSTRACT:
The present invention relates to a pressure sensitive adhesive composition comprising a thermoplastic polyurethane and a tackifying resin, which thermoplastic polyurethane is derived from an aromatic diisocyanate and/or a cycloaliphatic diisocyanate, a chain extender, and a polymeric diol and/or a hydrogenated polydiene diol and a hydrogenated polydiene mono-ol, and wherein the number average functionality of the diol and mono-ol ranges from 1.2 to 1.8. Further, the invention relates to a thermoplastic polyurethane for use in pressure sensitive adhesives and to articles containing the pressure sensitive adhesives.
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Gerard Eric-Jack
Muyldermans Xavier
Haas Donald F.
Niland Patrick D.
Shell Oil Company
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