Patents by Inventor Karl-Heinz Frassek

Karl-Heinz Frassek 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).

  • Metal carboxylate derivatives for use in synthetic materials, emulsions and suspensions
    Patent number: 4999400
    Abstract: The invention relates to metal carboxylate derivatives of partially esterified .alpha.-olefin unsaturated polycarboxylic acid copolymers, the .alpha.-olefin containing 6 to 40 carbon atoms and the copolymer being esterified with an alcohol. At least 80 percent by weight of the unesterified copolymer has a molecular weight in the range from 1000 to 100,000. Preferably, the .alpha.-olefin is maleic anhydride and the alcohol contains 4 to 18 carbon atoms. The present compounds are surprisingly satisfactory internal and external lubricants for synthetic resin such as PVC. Furthermore, the present compounds can be used as emulsifying and/or suspending agents, in particular when the alcohol is a polyethylene oxide glycol ether with 1 to 50 ethylene oxide units.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: March 12, 1991
    Assignee: Akzo N.V.
    Inventors: Helmut Kuhne, Karl-Heinz Frassek, Dieter Sonderhof, Gunther Lanzrath, Fritz Steinseifer, Heinz Beck
  • Copolymers for .alpha.-.beta.-unsaturated dicarboxylic acid esters wherein said esters are comprised of ethoxylated esters, methods for their production as well as their use as lubricant for the working-up of plastics
    Patent number: 4931197
    Abstract: The copolymers of the invention are made from .alpha.,.beta.-unsaturated dicarboxylic acid esters and .alpha.-olefins. The .alpha.-olefins employed have 8 to 24 C-atoms and the .alpha.,.beta.-unsaturated dicarboxylic acid esters are made solely from ethoxylated alcohol with a degree of ethoxylation of 1 to 45. Also disclosed is a process for the production of these copolymers, in which either .alpha.-olefin having 8-24 C-atoms is copolymerized with .alpha.-.beta.-unsaturated dicarboxylic anhydride or .alpha.-.beta.-unsaturated dicarboxylic acid at temperatures of 80.degree.-210.degree. C. in the presence of a peroxide catalyst in an inert gas atmosphere, along with esterification with ethoxylated alcohol having a degree of ethoxylation of 1-45 in the mole ratio of 1:1 to 1:2 .alpha.-.beta.-unsaturated dicarboxylic acid or anhydride : ethoxylated alcohol, or by copolymerizing .alpha.-olefins having 8-24 C-atoms and .alpha.-.beta.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: June 5, 1990
    Assignee: AKZO NV
    Inventors: Heinz Beck, Karl-Heinz Frassek, Eduard M. Verhulst, Egenius A. Giezen
  • Metal carboxylate derivatives for use in synthetic materials, emulsions and suspensions
    Patent number: 4775723
    Abstract: The invention relates to metal carboxylate derivatives of partially esterified .alpha.-olefin unsaturated polycarboxylic acid copolymers, the .alpha.-olefin containing 6 to 40 carbon atoms and the copolymer being esterified with an alcohol. At least 80 percent by weight of the unesterified copolymer has a molecular weight in the range from 1000 to 100,000. Preferably, the .alpha.-olefin is maleic anhydride and the alcohol contains 4 to 18 carbon atoms. The present compounds are surprisingly satisfactory internal and external lubricants for synthetic resin as PVC. Furthermore, the present compounds can be used as emulsifying and/or suspending agents, in particular when the alcohol is a polyethylene oxide glycol ether with 1 to 50 ethylene oxide units.
    Type: Grant
    Filed: November 4, 1987
    Date of Patent: October 4, 1988
    Assignee: AKZO N.V.
    Inventors: Helmut Kuhne, Karl-Heinz Frassek, Dieter Sonderhof, Gunther Lanzrath, Fritz Steinseifer, Heinz Beck
  • Solid rubber adhesion promoter and a method for improving the adhesion of rubber to metal reinforcing elements embedded therein
    Patent number: 4340515
    Abstract: The present invention relates to a solid rubber adhesion promoter composition. It comprises 20-90%, preferably 60-80% by weight of cobalt naphthenate, nickel naphthenate or a mixture thereof and 10-80%, preferably 20-40% by weight of cobalt resinate, nickel resinate or a mixture thereof.The composition can be produced in the form of crisp, non-dusting, friable cast solids, powders or flakes. It has a long shelf life and mixes very well into rubber compounds.By the use of the present promoter compositions strong rubber-to-metal adhesion is obtained.
    Type: Grant
    Filed: June 16, 1981
    Date of Patent: July 20, 1982
    Assignee: Akzo NV
    Inventors: Karl-Heinz Frassek, Willy J. van Ooij