Patent ID: 6034168
Filing Date: 2000-03-07
Classification: C08L,C09J,Y10T

Abstract:
A heat stable water sensitive hot melt adhesive composition, comprising:(a) about 10% to about 80%, by weight, of a N-substituted alkyleneimine copolymer, said N-substituted alkyleneimine copolymer is selected from the group consisting of a block copolymer and a random copolymer of formula I: ##STR2## wherein p and q are each independently about 2-6, m and n are each independently about 20-10,000, R.sub.1 is selected from a grout of radicals that renders the repeating unit to which it is joined substantially water soluble, and R.sub.2 is selected from a group of radicals that renders the repeating unit to which it is joined substantially water insoluble;(b) about 0% to about 70%, by weight, of a compatible tackifying resin; and(c) about 10% to about 70%, by weight, of a plasticizer, the components of the composition adding up to 100% by weight, and wherein the adhesive composition maintains the integrity of a disposable article during normal use but degrades in the presence of water thereby permitting the disposable article to be easily disassembled and subsequently recycled.