Patents Assigned to John Stofko
  • Steam bonding of solid lignocellulosic material
    Patent number: 4357194
    Abstract: Composite products are formed, such as of lignocellulosic particles, by bonding through the transformation of added sugars and/or starches together with lignin and/or other phenolic containing materials, with the optional presence of added catalyst, the transformation causing the composition to convert into a furan-lignin type binder in situ by heat and pressure. The bonding composition is suitably activated by contact with live steam.
    Type: Grant
    Filed: April 14, 1981
    Date of Patent: November 2, 1982
    Assignees: John Stofko, John Jansky
    Inventor: John Stofko
  • Bonding of solid lignocellulosic material
    Patent number: 4107379
    Abstract: Solid lignocellulosic material is bonded together by heating and pressing with a bonding composition comprising at least one carbohydrate and an acid capable of catalysing hydrolysis of the carbohydrate, for example to make plywood or particle board.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: August 15, 1978
    Assignees: John Stofko, John Jansky
    Inventor: John Stofko