Electrical steel sheet with insulating coating
US10526672B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Apr 5, 2016 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Sep 6, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C2222/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The disclosure provides an electrical steel sheet with an insulating coating excellent in both punchability and powdering resistance, without any chromium compound being contained in the insulating coating. The electrical steel sheet with an insulating coating includes an electrical steel sheet and an insulating coating formed on the electrical steel sheet. The insulating coating contains Si and particulate organic resin. The organic resin contains primary particles having an average primary particle size of 1.0 μm or less, and 5% or more and 50% or less of the primary particles of the organic resin are agglomerated particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.