Powder comprising polymer-coated polymeric core particles

US9382420B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Wolfgang Diekmann · Waltrop, DE
• Franz-Erich Baumann · Schneverdingen, DE
• Maik Grebe · Bochum, DE
• Kristiane Warnke · Recklinghausen, DE
• Sylvia Monsheimer · Haltern am See, DE

Key dates

• Filing date: Jul 5, 2012
• Grant date: Jul 5, 2016
• Expiry date: Dec 25, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2998
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to powder, comprising composite particles comprising core particles completely or partially coated with a precipitated first polymer, where the core particles comprise a second polymer which differs from the precipitated first polymer, and where the ratio of the d50 median diameter of the composite particles to the d50 median diameter of the core particles is 1.15 or greater. The invention further relates to processes of using the powders of the present invention to making moldings.