Command-cure adhesives

C - Chemistry – Metallurgy – 08 – G

Patent

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Details

C08G 59/68 (2006.01) C08G 65/10 (2006.01) C09J 5/00 (2006.01) C09J 163/00 (2006.01)

Patent

CA 2534635

Reactive adhesive compositions that can be activated with actinic radiation, manipulated for an extended time and then cured thermally are disclosed. The prepolymer mixture for the reactive adhesive contains a catalyst component and a monomer/oligomer component. The monomer or oligomer is chosen from oxetane monomers, oxirane monomers, oxetane oligomers and oxirane oligomers. The oxirane monomers and oligomers have at least one oxygen or sulfur of an ether or thioether in a position two or three carbons removed from the oxygen of the oxirane.

L'invention concerne des compositions adhésives réactives pouvant être activées par un rayonnement actinique, manipulées pendant un laps de temps prolongé, puis traitées thermiquement. Le mélange prépolymère pour l'adhésif réactif contient un catalyseur et un monomère/oligomère. Ce monomère ou oligomère est sélectionné dans un groupe comprenant des monomères oxétane, des monomères oxirane, des oligomères oxétane et des oligomères oxirane. Les monomères et les oligomères oxirane comportent au moins un atome d'oxygène ou de soufre d'un éther ou d'un thioéther à une position située à une distance de deux ou trois carbones de l'oxygène de l'oxirane.

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