Method for preparing polymer particles
US11413794B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Dec 5, 2017 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Sep 1, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2351/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method for preparing spherical cured polymer particles from a curable composition. The method comprises the steps of: dropping a curable composition onto a substrate having a water contact angle of 150° to 170° at 25° C. to form droplets of the curable composition; and curing the droplets to form the polymer particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.