Process for uniform coating of polymer particles with an additive
US5041310A · kind A · utility
9Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1990 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Jun 21, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2491/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for coating polymer particles with an additive includes preparing a liquid composition comprising one or more desired additives and a gelling agent in an oil. The composition is coated onto the polymer particle by any convenient procedure. On cooling the coated particle below the gelling point, the composition gels providing a polymer particle having a uniform coating of the additives which is suitable for direct introduction into a mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.