Patents by Inventor Marta Bialik

Marta Bialik 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).

  • Alkali recycle in cellulose spinning process
    Patent number: 10138578
    Abstract: The present invention concerns a method for the recovery of solvent in a process for preparation of regenerated cellulosic fibers using sodium hydroxide as solvent for cellulose dissolving in the manufacturing of a cellulose spinning dope wherein sodium hydroxide present in the spinning dope is at least partially recovered and recycled as sodium hydroxide from a cellulose fiber regeneration or cellulose coagulation step and wherein said cellulose fiber regeneration or cellulose coagulation step consists of a bath into which cellulose spinning dope is injected. Recovered sodium hydroxide may be directly or indirectly recycled from a cellulose fiber regeneration or cellulose coagulation step to a cellulose dissolving step.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: November 27, 2018
    Assignee: TREETOTEXTILE AB
    Inventors: Lars Stigsson, Bengt Hagström, Tobias Köhnke, Artur Hedlund, Marta Bialik
  • ALKALI RECYCLE IN CELLULOSE SPINNING PROCESS
    Publication number: 20160138200
    Abstract: The present invention concerns a method for the recovery of solvent in a process for preparation of regenerated cellulosic fibers using sodium hydroxide as solvent for cellulose dissolving in the manufacturing of a cellulose spinning dope wherein sodium hydroxide present in the spinning dope is at least partially recovered and recycled as sodium hydroxide from a cellulose fiber regeneration or cellulose coagulation step and wherein said cellulose fiber regeneration or cellulose coagulation step consists of a bath into which cellulose spinning dope is injected. Recovered sodium hydroxide may be directly or indirectly recycled from a cellulose fiber regeneration or cellulose coagulation step to a cellulose dissolving step.
    Type: Application
    Filed: June 27, 2014
    Publication date: May 19, 2016
    Inventors: Lars Stigsson, Bengt Hagström, Tobias Köhnke, Artur Hedlund, Marta Bialik