Bioactive coating of surfaces by using cross-linking agents

Details Bioactive coating of surfaces by using cross-linking agents Bioactive coating of surfaces by using cross-linking agents

C - Chemistry, Metallurgy

08

J

C08J 7/18 (2006.01) A01N 25/34 (2006.01) A61L 17/00 (2006.01) A61L 27/00 (2006.01) A61L 27/34 (2006.01) A61L 29/00 (2006.01) A61L 29/08 (2006.01) A61L 31/00 (2006.01) A61L 31/10 (2006.01) C08J 7/04 (2006.01) C09D 4/00 (2006.01)

Patent

CA 2241483

Disclosed is a process for coating a polymer substrate, by grafting: (i) a mixture of (A) a monomer of the general formula Formula I R-(A)a (wherein R stands for an aliphatic unsaturated radical with the valency a; (A) stands for an acid group or a salt thereof; a stands for 1, 2, or 3), and (B) a cross-linking vinyl monomer (B monomer) that contains at least two olefin double bonds or (ii) a mixture of the cross-linking vinyl monomer B and a polymer derived from the (A) monomer (polymer C), onto the polymer substrate, wherein the polymer substrate has been activated prior to the grafting process or an initiator is used and the grafting is initiated by electromagnetic irradiation or thermally. Articles that have been coated according to the present invention are suitable for use in the fields of food and beverage technology, water technology, biotechnology, health and hygiene , and in particular medical technology.

On divulgue un procédé pour le revêtement d'un substrat polymérique par greffe (i) d'un mélange de (A) monomère de formule générale R-(A)a (où R représente un radical aliphatique insaturé de valence a; (A) représente un groupe acide ou un sel de celui-ci; a représente 1, 2 ou 3) et (B) d'un monomère vinylique réticulant (monomère B), qui renferme au moins deux doubles liaisons oléfinique, ou (ii) d'un mélange du monomère vinylique réticulant B et d'un polymère dérivé du monomère (A) (polymère C), sur le substrat polymérique, lequel est activé avant le procédé de greffage; ou bien on utilise un initiateur, la greffe étant induite thermiquement ou par rayonnement électromagnétique. Les articles revêtus grâce à la présente invention peuvent être employés dans les secteurs suivants : technologie des aliments et des boissons, technologie de l'eau, biotechnologie, santé et hygiène, et certaines technologies médicales spéciales.

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