High-functionality polyether polyols and preparation thereof

US7122708B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Peter Bohme · Kelkheim, DE
• Michael Pcolinski · Bloomfield, US
• Udo Rotermund · Ortrand, DE
• Wolf-Dieter Habicher · Dresden, DE
• Antje Ziemer · Mannheim, DE

Key dates

• Filing date: May 10, 2000
• Grant date: Oct 17, 2006
• Expiry date: May 10, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/721
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to high-functionality polyether polyols of the general formulawhere each R′1 is an unsubstituted or substituted aliphatic or aromatic radical and each R′2 is an unsubstituted or substituted aliphatic or aromatic radical, H, OH, polyalkyl ether chain or halogen, each X is a polyalkyl ether chain or H, where at least one X is a polyalkyl ether chain, and m is an integer from 0 to 20, where Xm is H when m is 0, and n is an integer from 4 to 12, to processes for preparing such high-functionality polyether polyols and also to the use thereof for preparing polyurethanes and nonionic surfactants.