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:
Sep. 20, 2016
Filed:
Feb. 13, 2012
Applicants:
Elisabeth Sjholm, Marsta, SE;
Goran Gellerstedt, Sollentuna, SE;
Rickard Drougge, Marsta, SE;
Ida Norberg, Sollentuna, SE;
Ylva Nordstrom, Danderyd, SE;
Inventors:
Elisabeth Sjholm, Marsta, SE;
Goran Gellerstedt, Sollentuna, SE;
Rickard Drougge, Marsta, SE;
Ida Norberg, Sollentuna, SE;
Ylva Nordstrom, Danderyd, SE;
Assignee:
INNVENTIA AB, Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07G 1/00 (2011.01); D01D 5/08 (2006.01); D01F 2/00 (2006.01); D01F 2/24 (2006.01); C01B 31/00 (2006.01); D01F 9/00 (2006.01); D01F 9/17 (2006.01); C01B 31/02 (2006.01);
U.S. Cl.
CPC ...
C01B 31/00 (2013.01); C01B 31/02 (2013.01); C07G 1/00 (2013.01); D01F 9/00 (2013.01); D01F 9/17 (2013.01);
Abstract
Disclosed is a method of producing a continuous lignin fiber from softwood and/or hardwood alkali lignin. The lignin fiber can be further treated to obtain structural carbon fiber.