Aqueous semi-finished and primary non-stick coating compositions comprising aromatic polymers
US11059981B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2015 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Jun 12, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2650/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is an aqueous amine-free coating composition including at least one aromatic polymer, wherein the aromatic polymer is in the form of powder having a d90 less than or equal to 20 μm and in that the aqueous coating composition further includes polar aprotic solvent at a content greater than 0% by weight and less than or equal to 25% by weight. Also provided is an aqueous amine-free non-stick coating composition including such an aqueous composition for a coating, and the respective methods for producing same. Further provided is a method for producing an item on one of the faces of a metal substrate, from at least one layer of the coating composition or one layer of the non-stick coating composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.