Tacky microspheres having pendant hydrophilic polymeric or...

Details Tacky microspheres having pendant hydrophilic polymeric or... Tacky microspheres having pendant hydrophilic polymeric or...

C - Chemistry, Metallurgy

09

J

C09J 133/08 (2006.01) B01J 13/14 (2006.01) C09J 7/02 (2006.01)

Patent

CA 2150122

The invention provides inherently tacky, polymeric, organic, solvent-insoluble, solvent-dispersible, elastomeric, pressure-sensitive adhesive microspheres having pendant hydrophilic polymeric or oligomeric moieties having a degree of polymerisation greater than or equal to 2. The microspheres which are sterically stabilized can offer enhanced stability against coagulation caused by alkali, alkali salts, polyelectrolytes and repeated free/thaw cycles. The present invention also provides pressure-sensitive adhesives comprising these microspheres including aerosol spray PSAs, coated sheet materials prepared therefrom, and method of making the microspheres.

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