Patents by Inventor CAROLINE LÖFGREN

CAROLINE LÖFGREN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of treating cellulose pulp
    Patent number: 10858781
    Abstract: Disclosed is a method of treating cellulose pulp for use in regeneration of cellulose including the steps of: i) preparing an alkaline metal hydroxide solution having a concentration of 4-10% by weight; ii) adding cellulose pulp to form a slurry; iii) heating the slurry to a temperature of 40-100° C.; and iv) dissolving the treated cellulose pulp in an alkaline solution having a temperature within the range of ?10° C. to 12° C.; wherein the percentage by weight is based on the total weight of the slurry.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: December 8, 2020
    Inventors: Caroline Löfgren, Linda Friman, Linda Svedberg
  • A METHOD OF TREATING CELLULOSE PULP
    Publication number: 20180347112
    Abstract: Disclosed is a method of treating cellulose pulp for use in regeneration of cellulose including the steps of: i) preparing an alkaline metal hydroxide solution having a concentration of 4-10% by weight; ii) adding cellulose pulp to form a slurry; iii) heating the slurry to a temperature of 40-100° C.; and iv) dissolving the treated cellulose pulp in an alkaline solution having a temperature within the range of ?10° C. to 12° C.; wherein the percentage by weight is based on the total weight of the slurry.
    Type: Application
    Filed: April 8, 2016
    Publication date: December 6, 2018
    Inventors: CAROLINE LÖFGREN, LINDA FRIMAN, LINDA SVEDBERG