Patent Number: 6,617,419

Title: Long-chain polyether polyols with a high proportion of primary oh groups

Abstract: The invention relates to long-chain polyether polyols having a content of primary OH groups of 40 to 95 mol-% and a total content of oxyethylene units of >25 wt. % as well as a process for their production by DMC-catalysed polyaddition of an ethylene oxide (EO)/propylene oxide (PO) mixture in the weight ratio of 40:60 to 95:5 as an end block to starter compounds having active hydrogen atoms.

Inventors: Hofmann; Jorg (Krefeld, DE), Gupta; Pramod (Bedburg, DE), Dietrich; Manfred (Frankfurt, DE)

Assignee: Bayer Aktiengesellschaft

International Classification: C08G 18/48 (20060101); C08G 65/00 (20060101); C08G 65/26 (20060101); C08G 18/00 (20060101); C08G 065/34 ()

Expiration Date: 09/09/2020