Water dispersible polymeric compositions

C - Chemistry – Metallurgy – 08 – L

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C08L 101/02 (2006.01) C08G 81/02 (2006.01) C08J 3/03 (2006.01)

Patent

CA 2308450

An aqueous polymeric dispersion is described containing at least one substantially non-gelled polymeric composition comprising the reaction product of an A polymer which is an addition polymer having 3.5 or more reactive functional groups per polymer chain and a B polymer having about 2 to about 3 functional groups per polymer chain that are co-reactive with the reactive functional groups of the A polymer and an aqueous solvent. The aqueous polymeric dispersion is particularly useful in or as overprint varnishes, inks, pigment dispersions, paints, adhesives, coatings, support resins, emulsion polymers and the like.

L'invention concerne une dispersion polymère aqueuse contenant au moins une composition polymère sensiblement non gélifiée comprenant le produit de réaction d'un polymère A, lequel est un polymère d'addition présentant au moins 3,5 groupes fonctionnels réactifs par chaîne polymère, et d'un polymère B ayant environ 2 à environ 3 groupes fonctionnels par chaîne polymère lesquels sont coréactifs avec les groupes fonctionnels réactifs du polymère A et d'un solvant aqueux. La dispersion polymère aqueuse est particulièrement utile en tant que ou dans des vernis à surimpression, des encres, des dispersions de pigments, des peintures, des adhésifs, des revêtements, des résines de support, des polymères en émulsion et analogues.

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