Composite article having thermoplastic elastomer region on...

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 27/08 (2006.01) B32B 27/36 (2006.01) B32B 27/40 (2006.01) B65G 17/08 (2006.01) B65G 17/40 (2006.01) B29C 47/02 (2006.01)

Patent

CA 2500013

A method and materials are disclosed wherein a layer of a softer thermoplastic material comprising (i) a thermoplastic polyurethane or (ii) a thermoplastic elastomer alloy including a styrenic thermoplastic elastomer and a thermoplastic polyurethane can be attached to a substrate comprising a harder thermoplastic alloy including a polyester and a polycarbonate. In one form, the method and materials are used to form a modular chain link for use in constructing a modular conveyor chain. The modular chain link includes a main body comprising the thermoplastic alloy including a polyester and a polycarbonate, and a softer layer of the thermoplastic material comprising (i) a thermoplastic polyurethane or (ii) a thermoplastic elastomer alloy including a styrenic thermoplastic elastomer and a thermoplastic polyurethane disposed on at least a portion of the main body.

Cette invention concerne des matériaux et un procédé selon lequel une couche de matériau thermoplastique plus tendre, qui comprend (i) un polyuréthane thermoplastique ou (ii) un alliage élastomère thermoplastique avec élastomère thermoplastique styrènique et polyuréthane thermoplastique, peut être fixée sur un substrat renfermant un alliage thermoplastique plus dur comprenant un polyester et un polycarbonate. Dans une forme donnée, le procédé et les matériaux s'utilisent pour la fabrication d'un maillon de chaîne modulaire pour chaîne de bande transporteuse modulaire. Ledit maillon de chaîne modulaire comprend un corps principal fait dans l'alliage thermoplastique comprenant un polyester et un polycarbonate, et dans une couche plus tendre de matériau thermoplastique comprenant (i) un polyuréthane thermoplastique ou (ii) un alliage élastomère thermoplastique avec élastomère thermoplastique styrènique et polyuréthane thermoplastique disposé sur au moins une partie du corps principal.

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