In-press process for coating composite substrates

Details In-press process for coating composite substrates In-press process for coating composite substrates

1998-11-06

2000-12-26

Mayes, Curtis

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156182, 156230, 156239, 156241, 1563082, 427370, 4274071, B32D 3120, B05D 312

Patent

active

06165308&

ABSTRACT:
An improved process for manufacture of polymer coated composite substrates is described. a coated composite substrate is prepared in the press by applying a layer of a primer coating composition to the surface of a compressible mat comprising fibers and/or particles and a resin binder. The primer coating composition is formulated preferably as a fast setting polymer latex capable of forming a chemically crosslinked polymer matrix when applied to the surface of a compressible mat. A thermosetting top coat composition can be applied directly over the wet primer coating composition before heat-processing the mat to improve surface quality and release characteristics. Compressing and heating the coated mat produces a primed composite substrate directly out of the press.

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