Pressure sensitive adhesives having quaternary ammonium...

Details Pressure sensitive adhesives having quaternary ammonium... Pressure sensitive adhesives having quaternary ammonium...

2006-02-28

2006-02-28

Yao, Sam Chuan (Department: 1733)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C523S111000, C528S071000, C424S078060, C424S078070, C424S078350, C424S078370, C156S332000

Reexamination Certificate

active

07005031

ABSTRACT:
A pressure sensitive adhesive composition is provided that includes a pressure sensitive adhesive polymer. The polymer includes: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 25° C.; at least one copolymerized monoethylenically unsaturated reinforcing monomer, wherein the reinforcing monomer, when homopolymerized, has a Tg of at least about 25° C.; covalently bonded quarternary ammonium functionality; and, optionally, at least one copolymerized monoethylenically unsaturated poly(alkylene oxide) monomer. The composition optionally further includes at least one nonreactive poly(alkylene oxide) polymer and/or at least one antimicrobial agent.

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