A Laminating Adhesive Composition And Method Of Making A Laminate Using The Composition Thereof

Abstract: A laminating adhesive composition for flexible food packaging using an isocyanate terminated compound which is a reaction product of (a) at least one polymeric isocyanate compound optionally having a 4,4'- MDI monomer content of no more than 65 wt%, and (b) a first polyol selected from the group consisting of polyether polyols, polyester polyols and combinations thereof; and (ii) at least one second polyol selected from the group consisting of polyether polyol, polyester polyol and combinations thereof,. The polymeric isocyanate compound may have an NCO content from about 10 wt% to about 35wt% and a viscosity from about 50 mPa.s to about 1000 mPa.s. A method of bonding a laminate with the adhesive composition, and a method of preparing the composition thereof. Preferably the adhesive composition exhibits a PAA migration of no more than 0.6 ppb with at least 7 days of cure.

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