Patent ID: 7659000
Filing Date: 2010-02-09
Classification: B32B,Y10T

Abstract:
1. An article comprising a laminate having first and second layers and a tie-layer therebetween bonding the first and second layers, the first and second layers formed, respectively, of first and second polymer materials, the first and second polymer materials being different, wherein the first and second polymer materials, respectively, have first and second functional groups thereon, and the tie layer is formed of a tie-layer polymer material obtained by melt modification of one of the first or the second polymer materials, said melt modification comprising incorporation therein of at least 5% by weight of a coupling agent, the coupling agent having functional groups thereon, at least some of which are reactive in the melt with at least the functional groups on the other of said first and second polymer materials, said coupling agent being selected from the group consisting of compounds having plural epoxy groups thereon, compounds having plural oxazaline groups thereon, compounds having plural carbodiimide groups thereon and compounds having plural isocyanate groups thereon.