Patent · US Active

Water processes for producing polyether polyols from solid polyhydroxyl compounds

US10633406B1 · kind B1 · utility

0Cited by

26References

23Claims

0Family size

Assignee

Covestro LLC · US

Inventors

Anthony R. Loveday · Weirton, US
Daniel Wagner · Bad Dürkheim, DE

Key dates

Filing date	Nov 15, 2018
Grant date	Apr 28, 2020
Priority date	—
Expiry date	Nov 15, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2650/26
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Batch “water processes” for producing high functionality polyether polyols from polyhydroxyl compounds that are solid at ambient conditions, such as is the case with sucrose, are disclosed. The disclosed processes avoid use of an intermediate dewatering step.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.