Patents by Inventor Ruslan Rustemovich Musin

Ruslan Rustemovich Musin 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).

  • Process for producing polyimide fiber
    Patent number: 5716567
    Abstract: A process for the production of polyimide fibers includes having the fiber spun from a fully aromatic polyamide acid solution in an aprotic amide solvent in an aqueous-organic bath and subjected to plasticization drafting. It is washed until a 2-4 wt. % content of the organic solvent per fiber is attained and treated with organic or inorganic acids until a 0.5-1.0 wt. % content thereof per fiber is attained. Thereafter, fibers are dried and heat-treated.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: February 10, 1998
    Assignee: Tamara Kurmangazievna Musina
    Inventors: Tamara Kurmangazievna Musina, Zinaida Grigorievna Oprits, Alexandr Mikhailovich Schetinin, Alexandr Ivanovich Andriashin, Ruslan Rustemovich Musin