Continuous solid state web coating process and webs produced...

Details Continuous solid state web coating process and webs produced... Continuous solid state web coating process and webs produced...

B - Operations, Transporting

01

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B01J 20/32 (2006.01) A61F 13/15 (2006.01) A61L 15/60 (2006.01) B01J 20/28 (2006.01) B05D 1/28 (2006.01) B05D 3/12 (2006.01) B32B 27/12 (2006.01) B32B 37/24 (2006.01) C02F 1/50 (2006.01) C02F 1/62 (2006.01) D06N 3/00 (2006.01) D06N 3/04 (2006.01) D21H 23/64 (2006.01) B05D 1/30 (2006.01) B05D 5/06 (2006.01) D21H 19/58 (2006.01) D21H 21/14 (2006.01) D21H 25/06 (2006.01)

Patent

CA 2226231

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.

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