Process for improving water-whitening resistance of pressure sen

Details Process for improving water-whitening resistance of pressure sen Process for improving water-whitening resistance of pressure sen

1993-11-15

1996-07-16

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

528489, 528490, 523310, 521 32, 521 33, 521 38, C08F 600, C08J 300

Patent

active

055368115

ABSTRACT:
A process is disclosed for improving the water-whitening resistance of a pressure sensitive adhesive containing an aqueous latex emulsion and water-soluble ions by removing the water-soluble ions and adjusting the pH of the pressure sensitive adhesive formulation to at least about 6.0. The preferred method of removing the water-soluble ions is to contact either the aqueous latex emulsion, the formulated pressure sensitive adhesive containing the aqueous latex emulsion, or both with ion exchange resin. The product produced by the process is also disclosed.

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