The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2016
Filed:
Oct. 21, 2009
Xiaojin Harry LI, Palatine, IL (US);
Joanna L. Shih, Downers Grove, IL (US);
Heinrich E. Bode, Aurora, IL (US);
Jing Wang, Aurora, IL (US);
Frederick J. Swiecinski, Algonquin, IL (US);
Xiaojin Harry Li, Palatine, IL (US);
Joanna L. Shih, Downers Grove, IL (US);
Heinrich E. Bode, Aurora, IL (US);
Jing Wang, Aurora, IL (US);
Frederick J. Swiecinski, Algonquin, IL (US);
NALCO COMPANY, Naperville, IL (US);
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.