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:
Nov. 30, 2010
Filed:
Dec. 26, 2007
Adriaan Reinhard Pieter Van Heiningen, Orono, ME (US);
Sung-hoon Yoon, Auburn, AL (US);
Haixuan Zou, Orono, ME (US);
Jianer Jiang, Mason, OH (US);
Gopal C. Goyal, Mason, OH (US);
Adriaan Reinhard Pieter van Heiningen, Orono, ME (US);
Sung-Hoon Yoon, Auburn, AL (US);
Haixuan Zou, Orono, ME (US);
Jianer Jiang, Mason, OH (US);
Gopal C. Goyal, Mason, OH (US);
The University of Maine System Board of Trustees, Bangor, ME (US);
International Paper, Memphis, TN (US);
Abstract
A process of treating a lignocellulosic material includes a pre-extraction step in which hemicellulose is extracted from the lignocellulosic material. Then, in a solvent pulping step, the lignocellulosic material is separated into pulp by contacting the lignocellulosic material with a cooking liquor comprising a solvent. In one embodiment, the solvent has a boiling point of at least about 150° C. In another embodiment, the cooking liquor comprises a mixture of solvent and water.