Patents by Inventor Erwin Panusch

Erwin Panusch 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).

  • Flame retarding compositions for cellulosic boards
    Patent number: 4126473
    Abstract: Synergistically performing flame retarding compositions are provided for cellulosic boards, such as hardboards, particleboards and fiberboards. The synergistically performing compositions consist of three components, namely, an aluminous material, a naturally occurring borate-containing mineral and a phosphate or sulfate salt. Incorporation of these compositions in the boards allows consistent production of flame-retarded products with a Class I or better fire rating.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: November 21, 1978
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventors: Igor Sobolev, Erwin Panusch
  • Flame retardant cellulosic boards
    Patent number: 4076580
    Abstract: Cellulosic boards, such as hardboards, fiberboards and particle-boards, are flame retarded by incorporation of a synergistically acting alumina trihydrate-ulexite composition in the boards. The alumina trihydrate-ulexite flame-retarding agent provides a board of satisfactory strength properties with a flame spread at least equivalent to that of a commercial Class I-rated hardboard when the loading of the flame-retarding agent in the board is kept at 50% or below of the total weight of the flame-retarded board.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: February 28, 1978
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventors: Erwin Panusch, Igor Sobolev, Stephen C. Carniglia
  • Synergistic flame-retarding compositions for cellulosic boards
    Patent number: 4008214
    Abstract: Flame-retardant cellulosic hardboards and particle boards are made by incorporating in the boards a synergistically acting flame-retarding composition containing at least about 30% by weight (calculated on the weight of the flame-retarded board) alumina hydrate in combination with one of the following compositions: melamine-formaldehyde-phosphate, urea-formaldehyde-phosphate or dicyandiamide-formaldehyde-phosphate.
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: February 15, 1977
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventors: Igor Sobolev, Erwin Panusch