Patents by Inventor Walter Brotz

Walter Brotz 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).

  • Mixed oxidation product on the basis of bark waxes and other waxes
    Patent number: 4083731
    Abstract: A mixture of wax acids is prepared by oxidizing by means of chromosulfuric acid a mixture of a bark wax with a further natural or synthetic wax, preferably a hydrocarbon wax. The mixture of wax acids is especially suitable as wax component in polishes.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: April 11, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Brotz, Gunther Illmann, Karl Heinz Stetter
  • Lubricant containing poly(vinyl chloride) molding composition
    Patent number: 3979347
    Abstract: As lubricants for processing poly(vinyl chloride), there are used polyolefin oxidates having a content of from 20 to 80 weight % of dicarboxylic acids, an acid number of from 30 to 150 and a saponification number of from 40 to 220. Partial esters and salts of the indicated polyolefin oxidates are also appropriate. Shaped articles made from a PVC containing these lubricants have a very high degree of transparence.
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: September 7, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Brotz, Fred Mader
  • Coating composition
    Patent number: 3970624
    Abstract: A coating composition essentially consisting of a polypropylene having a crystalline fraction of from 20 to 60 % by weight and a melt viscosity of from 5,000 to 200,00 cP at 170.degree. C is applicable by a roll coater. The coatings have a high elasticity, toughness and good adherence on the support and are sealable.
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: July 20, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Brotz, Manfred Engelmann, Klaus Rieger
  • Lubricant for polyvinyl chloride materials
    Patent number: 3963658
    Abstract: The invention is concerned with novel modified candelilla waxes which are obtained by treating natural candelilla wax with magnesium, calcium, barium, zinc or aluminium hydroxide to such an extent that the product has substantially no acid number and a saponification number of from 5 to 20 units below that of the starting wax. The modified waxes of the invention do not, in contrast to natural wax, render tranparent PVC materials turbid during their processing, while the good properties of the natural lubricant remain unchanged.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: June 15, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Brotz, Gunther Illmann, Alfred Riedel, Friedrich Zinnert