Repulpable pressure-sensitive adhesive constructions having...

Details Repulpable pressure-sensitive adhesive constructions having... Repulpable pressure-sensitive adhesive constructions having...

B - Operations, Transporting

32

B

B32B 7/12 (2006.01) B05C 5/02 (2006.01) B05C 9/06 (2006.01) B05D 5/10 (2006.01) C09J 7/02 (2006.01)

Patent

CA 2200059

A pressure-sensitive adhesive construction repulpable in paper recycling operations, comprising a facestock which is repulpable; a dispersible pressure- sensitive adhesive comprising tacky emulsion polymers dispersible in water; and a nondispersible pressure-sensitive adhesive comprising tacky emulsion polymers not dispersible in water, wherein, on the facestock, the dispersible pressure-sensitive adhesive is closer to the facestock than the nondispersible pressure-sensitive adhesive, thereby improving both adhesive performance and recyclability.

Structure adhésive adhérant sous l'effet de la pression et pouvant être refondue dans des opérations de recyclage de papier, qui comprend une partie frontale recyclable, un adhésif dispersible adhérant sous l'effet de la pression qui comprend des polymères en émulsion collants dispersibles dans l'eau et un adhésif non dispersible adhérant sous l'effet de la pression qui comprend des polymères en émulsion collants non dispersibles dans l'eau. Sur la partie frontale recyclable, l'adhésif dispersible adhérant sous l'effet de la pression est plus proche de ladite partie frontale que l'adhésif non dispersible adhérant sous l'effet de la pression, ce qui améliore à la fois la performance adhésive et l'aptitude au recyclage.

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