Patents Assigned to Polyrand AB and Polycell Kompositer
  • Method for treatment of cellulose fibres and production of composite materials of the treated cellulose fibres in combination with resins
    Patent number: 5143791
    Abstract: Method of treating cellulose fibers wherein the fibers are treated with a composition containing a reagent A-B-X based on cyanuric chloride (A) in which one of the three chlorines has been reacted with an amine or hydroxyl compound (B-X). The reagent reacts under alkaline conditions with cellulose hydroxyl groups. A resin, e.g., polyester or vinyl resin, is then reacted with the thus modified cellulose fibers through the B-X substituent.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: September 1, 1992
    Assignee: Polyrand AB and Polycell Kompositer
    Inventors: Per Flodin, Pawel Zadorecki