Preparation of thermoplastic polymer particles having controlled geometry and powders obtained therefrom
US8444886B2 · kind B2 · utility
46Cited by
9References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2007 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Dec 23, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Controlled geometry particles of thermoplastic polymers are prepared from compositions containing the thermoplastic polymer and two additives, in the molten state, by cooling the molten composition and disintegrating the resulting dispersion of thermoplastic polymer; powders obtained therefrom advantageously have mean particle diameters ranging from 0.1 to 800 μm and are useful additives in, e.g., paints and coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.