Patent ID: 11965067
Assignee: DOW GLOBAL TECHNOLOGIES LLC
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 4:
5. A laminate comprising:
at least 6 film layers, each film layer being a pearlized biaxially oriented polypropylene (BOPP), each film layer having a thickness from 50 μm to 80 μm, with one of the BOPP film layers being an outermost layer on a first side of the laminate and another BOPP layer being an outermost layer on a second side opposing the first side;
an adhesive layer between each film layer, each adhesive layer in direct contact with two film layers, each adhesive layer formed from a solvent-less adhesive comprising
(i) a polyol component comprising at least one polyol selected from the group consisting of a polyester polyol, a polyether polyol, and combinations thereof;
(ii) an isocyanate component comprising an isocyanate prepolymer that is the reaction product of at least one isocyanate monomer and at least one polyol selected from the group consisting of a polyester polyol, a polyether polyol, and combinations thereof; and

the laminate has a thickness of at least 300 μm.