Process for manufacturing thermosetting resin particles for powder coating use
US5856377A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1997 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Mar 10, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J3/124
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for manufacturing thermosetting resin particles for powder coating use exhibiting improved anti-blocking property and workability is disclosed. The process include providing a suspension of the thermosetting resin particles in an aqueous medium and an emulsion or dispersion of a vinyl-based polymer having a relatively high Tg, respectively. The thermosetting resin particles are then treated with the emulsion while the resin particles are still suspended in or wetted with the aqueous medium to adhere the vinyl based polymer onto the resin particles forming a shell layer. The resin particles are dried and made to ready to use in the powder coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.