Liquid coating composition

Details Liquid coating composition Liquid coating composition

1994-08-11

1995-10-10

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524220, 524221, 524224, 524557, 524560, 524803, 524805, C08K 502, C08L 2714

Patent

active

054571537

ABSTRACT:
Proposed is an aqueous coating composition based on a polyvinyl alcohol suitable for use to provide a protective film on various electronic materials. The composition comprises, as dissolved in water, a partially saponified polyvinyl alcohol having a specified average degree of polymerization and a specified degree of saponification, a fluorine-containing surface active agent and, optionally, a quaternary ammonium hydroxide. The liquid coating composition is preferably freed from sodium ions as an impurity by an ion-exchange treatment.

REFERENCES:
patent: 4183837 (1980-01-01), Tamura et al.
patent: 4802740 (1989-02-01), Hotta et al.

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