Patents by Inventor Myat T. Htun

Myat T. Htun 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 reducing the energy consumption at the refining of cellulose containing material
    Patent number: 5007985
    Abstract: Method of reducing the energy consumption at the refining/beating of cellulose-containing material by the addition of alkali to the material for neutralizing acid groups bonded to the fibre wall. According to the invention, the pH-value in the pulp suspension is measured at the refiner outlet, the alkali is added in an amount depending on the measured pH value for neutralization without excess in the beating zone or immediately before the material enters the same, in an amount of 0.05-9 kg/ton, preferably 0.5-5 kg/ton, suitably 1-4 kg/ton, calculated as NaOH.
    Type: Grant
    Filed: May 2, 1989
    Date of Patent: April 16, 1991
    Assignee: STFI
    Inventors: Per O. Engstrand, Lars-Ake Hammar, Myat T. Htun, Rune L. Pettersson