Aqueous adhesive system, method for the production and use...

C - Chemistry – Metallurgy – 09 – J

Patent

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C09J 133/00 (2006.01) C04B 26/02 (2006.01) C04B 40/06 (2006.01) C09J 11/00 (2006.01)

Patent

CA 2431562

The invention relates to an adhesive system comprising at least two separate constituents A and B. Said adhesive system comprises a) an aqueous dispersion of a polymer obtained by means of polyaddition or polymerisation of a monomer comprising at least one olefinically unsaturated double bond, or of a mixture of at least two such monomers, or of a mixture of at least two such polymers, as constituent A, and b) a dispersion of a drying agent contained in a liquid oil phase at 23 ~C, as constituent B. Said oil phase contains at least 0.1 wt. % of a liquid compound at 23 ~C which is soluble in the oil phase and which contains at least one covalent single, double or triple bond between a C atom and a heteroatom, or a mixture of at least two such compounds. The invention also relates to a method for the production of an adhesive consisting of constituents A and B, as well as the use of constituent B for producing adhesives.

L'invention concerne un système de colle comportant au moins deux constituants A et B, ledit système de colle comportant a) en tant que constituant A une dispersion aqueuse d'un polymère obtenu par polyaddition ou polymérisation d'un monomère présentant au moins une double liaison insaturée de manière oléfinique, ou d'un mélange de deux ou trois de ces monomères, ou une dispersion d'un mélange de deux ou trois de ces polymères, et b) en tant que constituant B une dispersion d'un agent dessiccateur dans une phase huileuse liquide à 23 ·C. Ladite phase huileuse contient au moins 0,1 % en poids d'un composé liquide à 23 ·C, soluble dans la phase huileuse, présentant une liaison covalente simple, double, ou triple entre un atome de C et un hétéroatome, ou un mélange d'un ou deux de ces composés. L'invention concerne par ailleurs un procédé de fabrication d'une colle à partir des constituants A et B, ainsi que l'utilisation du constituant B pour la fabrication de colles.

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