Wet-stick adhesives

Details Wet-stick adhesives Wet-stick adhesives

C - Chemistry, Metallurgy

09

J

C09J 151/00 (2006.01) A61L 15/58 (2006.01) C08F 265/04 (2006.01) C09D 151/00 (2006.01) C09J 133/06 (2006.01) C09J 133/08 (2006.01) C08L 33/06 (2006.01)

Patent

CA 2374922

A wet-skin adhesive includes a pressure-sensitive adhesive component that includes at least one monoethylenically unsaturated (meth)acrylic acid ester comprising an alkyl group having at least 4 carbons on average and at least one monoethylenically unsaturated reinforcing monomer; and a film-forming component that includes at least one monoethylenically unsaturated (meth)acrylic acid ester comprising an alkyl group having less than 4 carbons on average and at least one hydrophilic acidic monomer, wherein the wet-stick pressure-sensitive adhesive has an initial wet skin adhesion of at least about 0.8 N/dm. Advantageously, the wet-stick adhesive has an initial wet skin adhesion that is at least about 65 % of an initial dry skin adhesion.

Un adhésif collant à la peau humide comprend un composant adhésif sensible à la pression qui est constitué d'au moins un ester d'acide (méth)acrylique insaturé en monoéthylène, comprenant un groupe alkyle possédant au moins 4 atomes de carbone en moyenne, et d'au moins un monomère renforçateur insaturé en monoéthylène ; et un composant filmogène comportant au moins un ester d'acide (méth)acrylique insaturé en monoéthylène, comprenant un groupe alkyle possédant 4 atomes de carbone en moyenne, et au moins un monomère acide hydrophile, ledit adhésif sensible à la pression collant aux surfaces humides possédant une adhérence initiale sur peau humide d'au moins environ 0,8 N/dm. Pour plus d'efficacité, l'adhésif collant aux surfaces humides présente une adhérence initiale sur peau humide d'au moins environ 65 % de l'adhérence initiale sur peau sèche.

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