Patents by Inventor Helmut Mohrke

Helmut Mohrke 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 producing polyvinylidene fluoride coatings
    Patent number: 4255462
    Abstract: A powder coating composition comprising a homopolymer or copolymer of polyvinylidene fluoride having a melt flow index of 10 to 300 grams per ten minutes, determined in accordance with ASTM D 1238, Condition J and 5 to 50 weight percent of a glass having a grain size of 1 to 300 .mu.m; an improvement in a method of coating a metal or inorganic oxidic surface wherein a powder coating composition containing polyvinylidene fluoride is applied to such surface and fused thereon, the improvement residing in employing as the powder coating composition one containing 5 to 50 weight percent glass, based upon the weight of the polyvinylidene fluoride polymer; a coated object having a metallic or inorganic oxidic surface which is coated with a polyvinylidene fluoride homopolymer or copolymer which coating contains 5 to 50 weight percent, based upon the weight of the polyvinylidene fluoride, of glass particles, especially glass particles of a grain size of 1 to 300 .mu.m.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: March 10, 1981
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Peter Gebauer, Wilhelm Kaufer, Helmut Mohrke
  • Method of producing polyvinylidene fluoride coatings
    Patent number: 4185000
    Abstract: A powder coating composition comprising a homopolymer or copolymer of polyvinylidene fluoride having a melt flow index of 10 to 300 grams per ten minutes, determined in accordance with ASTM D 1238, Condition J and 5 to 50 weight percent of a glass having a grain size of 1 to 300 .mu.m; an improvement in a method of coating a metal or inorganic oxidic surface wherein a powder coating composition containing polyvinylidene fluoride is applied to such surface and fused thereon, the improvement residing in employing as the powder coating composition one containing 5 to 50 weight percent glass, based upon the weight of the polyvinylidene fluoride polymer; a coated object having a metallic or inorganic oxidic surface which is coated with a polyvinylidene fluoride homopolymer or copolymer which coating contains 5 to 50 weight percent, based upon the weight of the polyvinylidene fluoride, of glass particles, especially glass particles of a grain size of 1 to 300 .mu.m.
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: January 22, 1980
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Peter Gebauer, Wilhelm Kaufer, Helmut Mohrke