PMMA-based cast polymers having improved mechanical properties

US12139589B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Thomas Richter · Wauseon, US
• Christoph Seipel · Babenhausen, DE
• Kay Bernhard · Darmstadt, DE

Key dates

• Filing date: Jul 3, 2020
• Grant date: Nov 12, 2024
• Expiry date: Sep 21, 2040

Classification

• Technology area (CPC —): General

Abstract

A composition can be used for producing a PMMA-based cast polymer with a low styrene content using urea (derivatives) as a formulation constituent, and a hydrophilic inorganic compound as a filler. It is possible to produce PMMA-based cast polymers and mouldings having surprisingly high mechanical stability from the composition.