Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1992-12-29
1995-10-03
Ryan, Patrick J.
Coating processes
With post-treatment of coating or coating material
Heating or drying
4273885, 4273898, 4273899, 427392, 427379, 4273722, 428934, 428224, 428246, B05D 300, B32B 2700
Patent
active
054550742
ABSTRACT:
A method of preparing a laminate having increased peel strength and solvent resistance which involves (A) applying an adhesive composition to a surface of a first sheet; (B) exposing the adhesive composition on the surface of the first sheet to incoherent, pulsed ultraviolet radiation from a dielectric barrier discharge excimer lamp; (C) bringing a surface of a second sheet in contact with the adhesive composition-bearing surface of the first article; and (D) allowing the adhesive composition to cure. The incoherent, pulsed ultraviolet radiation has a single narrow wavelength band within the range of from about 260 to about 360 nanometers. The adhesive composition includes from about 94 to about 60 percent by weight of a cycloaliphatic diepoxide, from about 1 to about 10 percent by weight of a cationic photoinitiator, and from about 5 to about 30 percent by weight of a vinyl chloride-vinyl acetate-vinyl alcohol terpolymer, all based on the weight of adhesive composition. The sheets desirably are films and nonwoven webs composed of cellulosic fibers, polyolefin fibers, or a mixture of cellulosic fibers and polyolefin fibers. The method is particularly well suited for the preparation of such laminates as industrial wipers, workwear, medical fabrics, and the like.
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MacDonald John G.
Nohr Ronald S.
Kimberly-Clark Corporation
Maycock William E.
Ryan Patrick J.
Weisberger Richard P.
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