Removable pressure sensitive adhesives with plasticizer...

Details Removable pressure sensitive adhesives with plasticizer... Removable pressure sensitive adhesives with plasticizer...

C - Chemistry, Metallurgy

09

J

C09J 133/06 (2006.01) C09J 7/02 (2006.01) C09J 7/04 (2006.01) C09J 123/08 (2006.01)

Patent

CA 2521004

A removable, plasticizer resistant pressure sensitive composition that is particularly useful for PSA applications on plasticizer containing vinyl films is provided. The pressure sensitive adhesive comprises: (a) at least one hydrophobic monomer; (b) about 0.2 to about 10 wt. % of at least one hydrophilic monomer; (c) about 1 to about 40 wt. % of one partially hydrophilic monomer (d) an effective amount of a crosslinker selected from diallyl maleate or a compound represented by the formula (I): (I), wherein R is selected from hydrogen, methyl, or ethyl, and R~ is selected from vinyl, allyl, or methallyl; wherein the pressure sensitive adhesive does not contain a plasticizer.

L'invention concerne une composition autocollante amovible, résistant aux plastifiants, particulièrement utile dans des applications pour adhésifs autocollants résistant aux plastifiants (PSA) sur un plastifiant contenant des films vinyliques. Ledit adhésif autocollant résistant aux plastifiants comprend : (a) au moins un monomère hydrophobe ; (b) entre approximativement 0,2 et approximativement 10 % en poids d'au moins un monomère hydrophile ; (c) entre approximativement 1 et approximativement 40 % en poids d'un monomère partiellement hydrophile ;(d) une quantité efficace d'un réticulant sélectionné dans le maléate de diallyle ou un composé représenté par la formule (I), dans laquelle R est sélectionné parmi hydrogène, méthyle ou éthyle, et R' est sélectionné parmi vinyle, allyle ou méthallyle, l'adhésif autocollant ne contenant pas de plastifiant.

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