Continuous solid state web coating process

Details Continuous solid state web coating process Continuous solid state web coating process

1997-03-07

1998-08-11

Beck, Shrive

Coating processes

Solid particles or fibers applied

Uniting particles to form continuous coating with...

427201, 427365, 4273744, 427375, B05D 134, B05D 312

Patent

active

057925135

ABSTRACT:
One or more particulate active agents are fused to the surface of a substrate web by mixing the particulate agents with a particulate binder having a particle size not exceeding an average diameter of approximately 40 microns and coating the composite mixture onto the surface of the substrate. Thereafter, the coated substrate is heated to a temperature equal to or greater than the Vicat softening temperature of the binder and compressed within the nip of a pair of pressure rolls to achieve fusion. If desired, a top layer may be placed upon the coated composite prior to the compression step. Also disclosed are various products manufactured by the process.

REFERENCES:
patent: 4420590 (1983-12-01), Gartner
patent: 5147722 (1992-09-01), Koslow
patent: 5151301 (1992-09-01), Kruger et al.
patent: 5225242 (1993-07-01), Frankosky et al.
patent: 5360419 (1994-11-01), Chen et al.
patent: 5413747 (1995-05-01), Akers et al.

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