B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/08 (2006.01) B41M 1/30 (2006.01) E04F 15/16 (2006.01)
Patent
CA 2057117
POLYMERIC SHEET Abstract An adhesive system is suitable for use in adhering an incompatible ink system to a polymeric film; particularly, adhering a lithographic ink or electrographic toner bonded to a floor covering. The polymeric sheet and incompatible ink have a primer layer interposed between them or the ink layer is encapsulated between the two primer layers. The primer may be solvent based or aqueous based, and preferably includes a benzene derivative, ketone, acetate or nitroparaffin solvent or film former. If aqueous based, the primer includes an organic solvent or film former. The preferred solvent or film former includes methyl isobutyl ketone, methyl ethyl ketone, n-propyl acetate, isopropyl acetate, or N-methyl-2-pyrrolidone. To deter dot distortion of the ink, the primer should have a glass transition temperature (Tg) of at least 60°C, and preferably at least 100°C. - 16 -
Davey Raymond Graham
Hines Charles Henry
Ko Kenneth Koon-Ying
Lewicki Walter John Jr.
Putt Dean Leo
Armstrong World Industries Inc.
Gowling Lafleur Henderson Llp
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