Process for troublefree coating of hydrophobic materials with po

Details Process for troublefree coating of hydrophobic materials with po Process for troublefree coating of hydrophobic materials with po

1989-05-23

1990-08-14

Lusignan, Michael

Coating processes

With pretreatment of the base

Preapplied reactant or reaction promoter or hardener

427322, 4274121, 428339, B05D 300

Patent

active

049486349

ABSTRACT:
The present invention relates to a process for troublefree, i.e. flaw-free and uniform, coating of a support which can accept a large amount of electrostatic charge, such as, for example, polycarbonate foils, with a solution of fully reacted polyurethane in organic solvents, more precisely after prior coating of the polycarbonate foil with an organic solution of the sodium salt of polystyrenesulphonic acid.

REFERENCES:
patent: 4395461 (1983-07-01), Ching
patent: 4612249 (1986-09-01), Packer et al.

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