Oxymethylene polymers, process for the preparation thereof and use thereof

US8742065B2 · kind B2 · utility

Assignee

• Ticona LLC · US

Inventors

• Michael Haubs · Bad Kreuznach, DE
• Michael Hoffmockel · Niedernhausen, DE
• Jurgen Lingnau · Mainz, DE
• Robert M. Gronner · Erlanger, US
• Horst Roeschert · Ober-Hilbersheim, DE

Key dates

• Filing date: May 29, 2012
• Grant date: Jun 3, 2014
• Expiry date: May 29, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L59/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Oxymethylene polymers having a bimodal distribution or having a distribution of higher modality and having a targeted content of a low molecular weight fraction of from 1 to 5 percent by mass are described. Moldings of these polymers are distinguished by high low-temperature notched impact strength associated with a high modulus of elasticity.