C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 7/00 (2006.01) C08F 299/06 (2006.01) C08G 18/67 (2006.01) C09J 175/16 (2006.01)
Patent
CA 2605096
A pressure-sensitive adhesive tape or film obtained by curing a UV-curable pressure-sensitive adhesive composition containing a UV-curable polymer or oligomer, wherein the UV curing is controlled to give a higher degree of cure to one surface of the pressure-sensitive adhesive tape or film than that on the opposite surface and thereby the pressure-sensitive adhesive property is suppressed on the one surface and maintained on the opposite surface.
L'invention concerne une bande ou une pellicule adhésive sensible à la pression, obtenue par séchage d'une composition adhésive sensible à la pression à séchage par ultraviolet contenant un polymère ou un oligomère à séchage aux UV. Le séchage aux UV est régulé de façon à conférer un séchage plus important à une surface de la bande ou de la pellicule sensible à la pression qu'à la surface opposée. Cette démarche permet de supprimer le pouvoir adhésif sensible à la pression au niveau de la première surface et de maintenir ce pouvoir adhésif au niveau de la surface opposée.
Takaki Shunsuke
3m Innovative Properties Company
Smart & Biggar
LandOfFree
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