Production and composition of glycerol based polyols
US9290620B2 · kind B2 · utility
3Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2009 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Jul 25, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/41
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides a method of efficiently producing branched, cyclic glycerol-based polyols with a co-product as anti-biodegrading agent from inexpensive readily available glycerol monomer. The method involves polymerizing glycerol or glycerol with at least another monomer to multiple other monomers in the presence of particular amount of a strong base as the catalyst under a particular distillation environment. The polyol produced by the inventive method is beneficial of reducing scales in Bayer liquid for aluminum production process and improving brightness of coated paper substrates without greening effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.