2 .POLYURETHANE RESIN FOR HOT MELT ADHESIVE AND TWO-COMPONENT POLYURETHANE HOT MELT ADHESIVE COMPRISING THE SAME AND METHOD FOR FORMING POLYURETHANE RESIN FOR HOT MELT ADHESIVE

摘要

A polyurethane resin for a hot-melt adhesive comprises 20-30 wt% of polyester polyol, 1-2.5 wt% of carboxylic alcohol monomer, 2-6 wt% of isocyanate, 0.2-1 wt% of a chain extender, 0.02-0.1 wt% of a catalyst comprising a reaction catalyst and a reaction terminator, and the remainder being an organic solvent. The polyurethane resin is applied to an adhesive for a film and is used to manufacture a polyurethane adhesive for a hot-melt adhesive which comes in close contact with a base material by a hot-press process and has excellent thermal resistance.