Waterborne epoxy resin for anti-corrosion coating, and preparation method and use thereof
US12077632B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 17, 2021 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Aug 3, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2150/90
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present disclosure discloses a waterborne epoxy resin for an anti-corrosion coating, and a preparation method and use thereof. In the preparation method, a strongly-hydrophilic polyethylene glycol (PEG) branch is introduced into a molecular chain of epoxy resin to realize the self-emulsification function of epoxy resin. Moreover, due to the short molecular chain, a solid content can reach up to 66.7% under the action of PEG. In addition, the waterborne emulsion can be prepared without adding any additional alcohol-soluble solvents and other high-boiling-point organic solvents, and a production process and a product use process both are very environmentally friendly. The waterborne epoxy resin can be mixed with a waterborne ammonia curing agent to form a film for corrosion protection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.