Coating agent, process of forming coating films, primer treatment process, process of repairing concretes, and process of constructing roads
US11549033B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 21, 2018 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Dec 23, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A coating agent is capable of forming a coating film that has enhanced adhesion and adherence to a substrate, and enhanced water resistance as well and composed mainly of an aqueous material. A process of forming a coating agent uses the coating agent, a primer treatment process uses the coating agent, a process of doing repairs to concretes uses the coating agent, and a process of laying down roads uses the coating agent. The coating agent is composed mainly of a polyphenol derivative and containing a polymerizing agent, and has a pH of 9 or less. The polymerizing agent contains a compound having two or more functional groups selected from the group of an amino group and a mercapto group per molecule. In the process of forming a coating film, the coating agent is applied onto a substrate in an alkaline environment having a pH of greater than 9.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.