Polyether block amide-poly(meth)acrylate foams

US12139605B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Kathrin Salwiczek · Recklinghausen, DE
• Alexander Richter · Johannesweg, DE
• Christine Weiß · Dorsten, DE
• Wolfgang Luley · Griesheim, DE
• Andreas Weber · Rabenau, DE
• Lukas Friedrich Dössel · Hattersheim, DE
• David S. Bailey · Rochester, US
• Ralf Richter · Dresden, DE
• Steffen Krill · Mühltal, DE
• Johannes Vorholz · Alzenau, DE
• Maren Kuhn · Schermbeck, DE

Key dates

• Filing date: Oct 16, 2019
• Grant date: Nov 12, 2024
• Expiry date: Jul 10, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2203/14
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A mixture contains at least one polyether block amide (PEBA) and at least one poly(meth)acrylate, selected from poly(meth)acrylimides, poly-alkyl(meth)acrylates, and mixtures thereof. The mass ratio of PEBA to poly(meth)acrylate is 95:5 to 60:40. The polyalkyl(meth)acrylate contains 80% by weight to 99% by weight of methyl methacrylate (MMA) units and 1% by weight to 20% by weight of C1-C10-alkyl acrylate units, based on the total weight of polyalkyl(meth)acrylate. The mixture can be processed to give foamed mouldings. The mouldings can be used in footwear soles, stud material, insulation or insulating material, damping components, lightweight components, or in a sandwich structure.