C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
400/3002
C09J 179/02 (2006.01) C09J 153/02 (2006.01) C09J 179/04 (2006.01) C09J 201/00 (2006.01)
Patent
CA 1332769
Abstract Normally water insoluble hot melt adhesive compositions containing structural polymers such as A-B-A block copolymers, butyl rubbers, polyesters, ethylene vinyl acetates, ethylene acrylic acid polymers can be made sensitive to the action of water using an effective water sensitizing amount of a polyalkyloxazoline polymer in the hot melt adhesive. The polyalkyloxazoline polymer can be incorporated into a single phase adhesive composition with the structural polymer using an effective amount of a hydroxyl or carboxylic acid compound. The compositions are comprised of: (a) about 10-30 wt % of a thermoplastic aqueous insoluble polymer; (b) about 1-75 wt % of an N-substituted polyalkyleneimine of the formula: Image wherein N is about 2-3, m is about 100-10,000, and R is a C1-3 alkyl group; (c) about 2-90 wt % of a diluent, either an acid functional organic compound having an acid number of at least 75, or a hydroxy substituted organic compound having a hydroxyl number of ?150; and (d) about 0-60 wt % of a compatible plasticizer or tackifier.
570461
Bunnelle William L.
Knutson Keith C.
Scholl Steven L.
Simmons Eugene R.
Cassan Maclean
H.b. Fuller Licensing & Financing Inc.
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