| 摘要 |
<p>PURPOSE:To provide the subject one pot type composition composed of a specified modified polyurethane resin, exhibiting an excellent adhesion to various kinds of plastic films and excellent in lamination processability, boil-retort processability, shelf life, etc. CONSTITUTION:The objective composition is composed of a polyurethane resin synthesized from (A) a high-molecular polyol (e.g. polyether polyol (B) a diisocyanate compound (e.g. 4,4'-diphenylmethane diisocyanate), (C) a chain- lengthening material (e.g. ethylenediamine) and (D) a polyepoxy alcohol (e.g. glyceral diglycidyl ether) having two or more epoxy groups based on one hydroxyl group. In addition, the components (A) and (B) are used preferably in a ratio satisfying (1/1.3) to (1/3) equivalent ratio of OH/NCO so as to obtain a uniform polymer solution.</p> |
