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:
Apr. 15, 2014
Filed:
Mar. 14, 2013
Lignol Innovations Ltd., Burnaby, CA;
Mikhail Yurevich Balakshin, North Vancouver, CA;
Alex Berlin, Burnaby, CA;
Humbert Thomas Dellicolli, Hanahan, SC (US);
Chadrick Adam Nathaniel Jordan Grunert, Vancouver, CA;
Vera Maximenko Gutman, Burnaby, CA;
Darwin Ortiz, Delta, CA;
Edward Kendall Pye, Media, PA (US);
Lignol Innovations Ltd., Burnaby, British Columbia, CA;
Abstract
At least one embodiment of the present inventions relates to a method of producing a softwood lignin derivative softwood lignin derivative. The method includes steps of pulping a fibrous biomass, heating the biomass, maintaining the elevated temperature for 1 minute or longer, separating the cellulosic pulp to form a lignin rich material, and recovering derivatives of native lignin wherein the derivatives have an aliphatic hydroxyl content of from about 2.5 mmol/g to about 7 mmol/g. The derivatives can have a phenolic hydroxyl content of from about 2 mmol/g to about 8 mmol/g and a normalized RSI of 10 or greater. The method can be a kraft process or a modification thereof.