Aqueous vacuum forming laminating adhesive composition,...

C - Chemistry – Metallurgy – 09 – J

Patent

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C09J 111/00 (2006.01) B32B 7/12 (2006.01) C08J 5/12 (2006.01) C09J 123/28 (2006.01) C09J 131/04 (2006.01) C09J 175/04 (2006.01)

Patent

CA 2496819

The present invention provides an aqueous adhesive composition including a resinous phase dispersed in an aqueous medium, the resinous phase containing (a) a polychloroprene, (b) optionally, a halogenated polyolefin different from (a), and (c) optionally, an aminoplast resin. Further provided is an aqueous adhesive composition of a resinous phase dispersed in an aqueous medium wherein the resinous phase includes (a) a polychloroprene, (b) a halogenated polyolefin different from (a), and (c) a polyurethane polymer having ionic salt groups. A multi-layer composite and methods for adhering a thermoplastic material to a rigid substrate using the aqueous adhesive compositions also are provided.

L'invention concerne une composition adhésive aqueuse comprenant une phase de résine dispersée dans un milieu aqueux, la phase de résine comprenant (a) un polychloroprène, (b) éventuellement une polyoléfine halogénée différente de (a), et (c) éventuellement une résine aminoplaste. Elle concerne, en outre, une composition adhésive aqueuse d'une phase de résine dispersée dans un milieu aqueux dans laquelle la phase de résine comprend (a) un polychloroprène, (b) éventuellement une polyoléfine halogénée différente de (a), et (c) éventuellement un polymère polyuréthanne comportant des groupes ioniques salins. Elle concerne enfin un composite à couches multiples et des procédés destinés à faire adhérer un matériau thermoplastique à un substrat rigide au moyen des compositions adhésives aqueuses.

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