The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 2011
Filed:
Jun. 20, 2007
Min-soo Han, Gyeongsangbuk-do, KR;
Jung-woo Kim, Gyeongsangbuk-do, KR;
Jae-kwan Kim, Gyeongsangbuk-do, KR;
Seong-ho Kim, Pohang-si, KR;
Min-Soo Han, Gyeongsangbuk-do, KR;
Jung-Woo Kim, Gyeongsangbuk-do, KR;
Jae-Kwan Kim, Gyeongsangbuk-do, KR;
Seong-Ho Kim, Pohang-si, KR;
Posco, , KR;
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.