Polyamide laminate on thermoplastic polyurethane

Details Polyamide laminate on thermoplastic polyurethane Polyamide laminate on thermoplastic polyurethane

B - Operations, Transporting

29

C

154/106, 154/140

B29C 47/06 (2006.01) B32B 27/08 (2006.01) B32B 27/34 (2006.01) B32B 27/40 (2006.01)

Patent

CA 2009704

ABSTRACT OF THE DISCLOSURE A self-adhering laminate of a polyamide multipolymer DRH 24039 on thermoplastic polyurethane is prepared by disrupting the crystalline structure of the polyamide sufficiently through polymer of at least 3 polyamide precursers such that DRH 27089 that a melting point in range of 140°C to 190°C is obtained. The laminate provides better resistance to solvents on the polyamide side than the uncoated polyurethane. The bonding of the polyamide onto the polyurethane is achieved without the use of surface modifications, such as solvents, softening agents or adhesives.

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