MOISTURE-SETTING POLYURETHANE ADHESIVE FOR HYGIENE ARTICLES

摘要

The invention concerns a moisture-setting polyurethane adhesive comprising: (a) 70 to 95 wt.% of a polyurethane prepolymer obtained by polyadditon of polyols with diisocyanates trimerised into isocyanates; and (b) 5 to 30 wt.% of a substantially amorphous polyalphaolefin, the content in free NCO groups representing 1 to 20 wt.% of the adhesive. Said adhesive is used for bonding VELCRO3 type fixing elements on hygiene articles.