Patent · US Active

Powder comprising polymer-coated glass particles

US10787559B2 · kind B2 · utility

3Cited by

8References

18Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Sylvia Monsheimer · Haltern am See, DE
Wolfgang Diekmann · Waltrop, DE
Franz-Erich Baumann · Schneverdingen, DE
Sigrid Hessel-Geldmann · Haltern am See, DE
Kristiane Warnke · Recklinghausen, DE
Heike Stemmer · Haltern am See, DE
Stefan Altkemper · Dorsten, DE

Key dates

Filing date	Jul 3, 2012
Grant date	Sep 29, 2020
Priority date	—
Expiry date	Mar 5, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2996
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Composite particles comprising core particles completely or partially coated with a precipitated polymer, where the d50 median diameter of the core particles is from 3 to 100 μm and wherein the glass core particle material is at least one selected from the group consisting of a solid glass bead, a hollow glass bead, a porous glass bead, and a foamed glass particle. A method to prepare the particles includes dissolution of a polymer in a solvent and precipitation of the polymer in the presence of a suspension of the core glass particles. Further provided is a layer by layer moulding process employing the composite particles and mouldings obtained therefrom.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.