Process using electrostatic spraying for coating substrates with

Details Process using electrostatic spraying for coating substrates with Process using electrostatic spraying for coating substrates with

1997-10-07

1999-09-21

Pianalto, Bernard

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1562757, 156289, 1563073, 1563082, 1563099, 156310, 1563244, 4272084, 4272088, 4273855, 427387, 4274071, 427421, 427475, 427480, 427482, 427485, 427503, 427505, 427515, 427516, 427551, 427558, 427559, 427595, B32B 3100

Patent

active

059549076

ABSTRACT:
This invention relates to a process for applying a coating material comprising a release coating composition or a pressure sensitive adhesive composition to a substrate, the process comprising: (A) atomizing and electrically charging said coating material; and (B) spraying the atomized and charged coating material from step (A) on to a substrate which overlies a grounded support structure. In one embodiment, the coating material sprayed during step (B) is a release coating composition, said process further comprising the additional steps of: (C) curing said release coating composition; (D) atomizing and electrically charging a pressure sensitive adhesive composition; (E) spraying the pressure sensitive adhesive composition from step (D) on to said substrate over the cured release coating composition from step (C); and (F) placing another substrate over the sprayed pressure sensitive adhesive composition from step (E).

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