Process for producing an antimicrobially effective polyurethane

Details Process for producing an antimicrobially effective polyurethane Process for producing an antimicrobially effective polyurethane

1991-04-26

1992-05-19

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

106 1833, 523122, 524718, 25218226, C08G 1814

Patent

active

051149842

ABSTRACT:
The present invention relates to a process for imparting anti-bacterial and anti-fungal properties to a polyurethane foam. Dissolving the pyrithione salt in an alkanolamine which is miscible with a polyol, makes this dissolved pyrithione an ideal candidate for use as a antimicrobial additive in this application. Prior use of pyrithiones in polyurethanes entailed using the powder form of zinc pyrithione. This was a dusty process as well as being difficult to disperse the pyrithione uniformly throughout the polyurethane foam. This invention overcomes both of these difficulties.

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Article from the Journal of the Society of Cosmetic Chemists entitled "Clear Zinc Pyrithione Preparations", presented May 24, 1971, Washington, D.C.

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