Coating liquid for forming conductive layer, method for producing conductive layer, and conductive layer
US10796812B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 14, 2017 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Jun 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/1476
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A coating liquid for forming a conductive layer according to the present invention is a coating liquid for forming a conductive layer, the coating liquid containing fine metal particles, a dispersant, and a dispersion medium. In the coating liquid for forming a conductive layer, the fine metal particles contain copper or a copper alloy as a main component, the dispersant is a polyethyleneimine-polyethylene oxide graft copolymer, a polyethyleneimine moiety in the graft copolymer has a weight-average molecular weight of 300 or more and 1,000 or less, a molar ratio of polyethylene oxide chains to nitrogen atoms in the polyethyleneimine moiety is 10 or more and 50 or less, and the graft copolymer has a weight-average molecular weight of 3,000 or more and 54,000 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.