Process for preparing particles of aromatic polymers, particles obtainable by said process and their uses
US11685829B2 · kind B2 · utility
0Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2018 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Mar 26, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2267/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for preparing polymeric particles, based on the use of a polyester polymer (PE) comprising units from a dicarboxylic acid component and a diol component, wherein at least 2 mol. % of the diol component is a poly(alkylene glycol). The process comprises the melt-blending of the aromatic polymer (P) with the PE, the cooling the blend and the recovery of the particles by dissolution of the PE into water. The present invention relates to polymeric particles obtained therefrom and to the use of these particles in SLS 3D printing, coatings and toughening of thermoset resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.