Aldehyde scavengers for polyurethane foams

US10683385B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Sheng-Kai Su · Shanghai, CN
• Juan Jesus Burdeniuc · Macungie, US
• Gauri Sankar Lal · Whitehall, US
• Jennifer Elizabeth Antoline Al-Rashid · Bethlehem, US
• Torsten Panitzsch · Henstedt-Ulzburg, DE

Key dates

• Filing date: Jun 16, 2015
• Grant date: Jun 16, 2020
• Expiry date: Jun 16, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2003/3054
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A polyurethane composition comprising an aldehyde scavenger, a polyurethane product, and a process for making polyurethane foam are disclosed. The scavenger compounds can reduce, if not eliminate, the emissions of aldehydes from polyurethane foams. The scavenger compounds comprise at least one member selected from the group consisting of: phenol or substituted phenol, a 1,3-dicarbonyl compound, a polyamine bearing a 1,3-propanediamino function, melamine, a 1,2-diaminocycloalkane, an ammonium salt; a compound containing the bisulfite anion, titanium dioxide and aminosiloxane.