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A Chromium Free Coating Composition For Forming An Insulation Film And A Method For Forming The Said Insulation Film
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 lOOg 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 ~ 5g of a solid in which cobalt hydroxide and strontium hydroxide are mixed at a 1 :1 ratio: 100 ~ 30Og of an emulsified polyester resin or an emulsified epoxy resin having a solid content of 20% by weight; 3 ~ 1Og of aluminum silicate having a solid content of 20% by weight; and 0.1 ~ 6g of a titanium chelate.
Notices, Deadlines & Correspondence
Patent Information
Applicants
POSCO
Inventors
1. Min-Soo HAN
2. Jung-Woo KIM
3. Jae-Kwan KIM
4. Seong-Ho KIM
Specification
COATING SOLUTION FOR FORMING INSULATING FILM WITH EXCELLENT CORROSION RESISTANCE PROPERTY AND FILM CLOSE ADHESION PROPERTY AND FILM INTENSITY WITHOUT CHROME AND A METHOD FOR MAKING THE INSULATION FILM ON NON-ORIENTED ELECTRICAL STEEL SHEET BY USING IT
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 797-delnp-2009-Form-2-(02-02-2009).pdf | 2009-02-02 |
| 2 | 797-delnp-2009-Form-1-(02-02-2009).pdf | 2009-02-02 |
| 3 | 797-delnp-2009-PCT-Documents-(06-02-2009).pdf | 2009-02-06 |
| 4 | 797-delnp-2009-Correspondence-others-(06-02-2009).pdf | 2009-02-06 |
| 5 | 797-delnp-2009-Correspondence-others-(08-04-2009).pdf | 2009-04-08 |
| 6 | 797-delnp-2009-Assignments-(08-04-2009).pdf | 2009-04-08 |
| 7 | 797-delnp-2009-Form-18-(09-04-2009).pdf | 2009-04-09 |
| 8 | 797-delnp-2009-Correspondence-others-(09-04-2009).pdf | 2009-04-09 |
| 9 | 797-DELNP-2009-Form-3-(31-07-2009).pdf | 2009-07-31 |
| 10 | 797-DELNP-2009-Correspondence-Others-(31-07-2009).pdf | 2009-07-31 |
| 11 | 797-delnp-2009-Correspondence-others-(30-07-2010).pdf | 2010-07-30 |
| 12 | Priority Document.pdf | 2011-08-20 |
| 13 | Form-5.pdf | 2011-08-20 |
| 14 | Form-3.pdf | 2011-08-20 |
| 15 | Form-1.pdf | 2011-08-20 |
| 16 | 797-DELNP-2009-FER.pdf | 2017-04-19 |
| 17 | 797-DELNP-2009-OTHERS [16-10-2017(online)].pdf | 2017-10-16 |
| 18 | 797-DELNP-2009-FER_SER_REPLY [16-10-2017(online)].pdf | 2017-10-16 |
| 19 | 797-DELNP-2009-CORRESPONDENCE [16-10-2017(online)].pdf | 2017-10-16 |
| 20 | 797-DELNP-2009-COMPLETE SPECIFICATION [16-10-2017(online)].pdf | 2017-10-16 |
| 21 | 797-DELNP-2009-CLAIMS [16-10-2017(online)].pdf | 2017-10-16 |
| 22 | 797-DELNP-2009-ABSTRACT [16-10-2017(online)].pdf | 2017-10-16 |
| 23 | 797-DELNP-2009-OTHERS-271017.pdf | 2017-11-01 |
| 24 | 797-DELNP-2009-Correspondence-271017.pdf | 2017-11-01 |
| 25 | 797-DELNP-2009-PatentCertificate09-11-2017.pdf | 2017-11-09 |
| 26 | 797-DELNP-2009-IntimationOfGrant09-11-2017.pdf | 2017-11-09 |
| 27 | 797-DELNP-2009-RELEVANT DOCUMENTS [31-03-2018(online)].pdf | 2018-03-31 |
| 28 | 797-DELNP-2009-RELEVANT DOCUMENTS [30-03-2019(online)].pdf | 2019-03-30 |
| 29 | 797-DELNP-2009-RELEVANT DOCUMENTS [09-03-2020(online)].pdf | 2020-03-09 |