Polymer powder with block polyetheramide, use in a shaping process, and moldings produced from this polymer powder

US7491792B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Sylvia Monsheimer · Haltern am See, DE
• Franz-Erich Baumann · Schneverdingen, DE
• Maik Grebe · Bochum, DE
• Ulrich Simon · Kahla, DE
• Sigrid Hessel · Haltern am See, DE

Key dates

• Filing date: Feb 17, 2006
• Grant date: Feb 17, 2009
• Expiry date: Aug 31, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D153/005
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Moldings can be produced from a polymer powder containing at least one block polyetheramide containing an oligoamide dicarboxylic acid and a polyetheramine; wherein the powder is suitable for use in a layer-by-layer process in which regions of a powder layer are selectively melted via introduction of electromagnetic energy.