Coating solution for forming insulating film with excellent...

Details Coating solution for forming insulating film with excellent... Coating solution for forming insulating film with excellent...

2011-07-12

2011-07-12

Cameron, Erma (Department: 1715)

Coating processes

With post-treatment of coating or coating material

Heating or drying

C427S385500, C427S388100

Reexamination Certificate

active

07976902

ABSTRACT:
There is provided a chromium-free coating composition for forming an insulation film, the composition having excellent corrosion resistance and excellent film adhesion and film strength after stress relief annealing (SRA), including, based on a 100 g phosphate solution having a solid content of 60% by weight, in which monoaluminum phosphate and monozinc phosphate are mixed at a 1:1 ratio: 0.5˜5 g of a solid in which cobalt hydroxide and strontium hydroxide are mixed at a 1:1 ratio: 100˜300 g of an emulsified polyester resin or an emulsified epoxy resin having a solid content of 20% by weight; 3˜10 g of aluminum silicate having a solid content of 20% by weight; and 0.1˜6 g of a titanium chelate.

REFERENCES:
patent: 4740393 (1988-04-01), Cody et al.
patent: 5658668 (1997-08-01), Kobayashi et al.
patent: 5945212 (1999-08-01), Tanaka et al.

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