Method for reducing coefficient of friction of a laminate comprising a polyurethane adhesive

A laminate product comprising:

• a first substrate that is a polyethylene;
• a second substrate that is a polyethylene terephthalate;
• and
• an adhesive layer sandwiched between and in direct contact with each of the first substrate and the second substrate, wherein the adhesive layer is formed by the reaction between
• (A) an isocyanate component consisting of a prepolymer, which is derived from the reaction of
• (i) one or more diisocyanates,
• (ii) from 60 wt % to 70 wt % of a polyethylene glycol having a molecular weight from 200 to 2,000 g/mol, wherein the weight percent is based on the total weight of the isocyanate component (A), and
• (iii) optionally an additional polyol selected from the group consisting of a polyether polyol other than the polyethylene glycol, a polyester polyol, and combinations thereof, with the proviso that the prepolymer comprises at least two free isocyanate groups, and
• (i), (ii), and (iii) amount to 100 wt % of the isocyanate component (A);
• and
• (B) a polyol component comprising at least one polyether polyol, at least one polyester polyol, or a combination thereof.