Patents by Inventor Boleslaus Raschkowski

Boleslaus Raschkowski 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).

  • Composition with hydrogen-containing fluorochlorohydrocarbons
    Patent number: 5399281
    Abstract: Cleaning compositions containing selected hydrogen-containing fluorochlorohydrocarbons, selected surface-active agents, and optional amounts of water and/or ammonia.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: March 21, 1995
    Assignee: Kali-Chemie AG
    Inventors: Hans Buchwald, Andreas Brackmann, Boleslaus Raschkowski
  • Fluorochlorohydrocarbon-free cleaning compositions
    Patent number: 5271861
    Abstract: Fluorochlorohydrocarbon-free cleaning compositions composed of from 80 to 99.5 percent by weight of an alcohol or partially fluorinated alcohol having 2 to 4 carbon atoms and 0.5 to 10 percent by weight of at least one surface-active agent selected from ammonium salts of alkyl benzene sulfonates and mixtures of fatty acid alkanolamides and alkyl phenol polyglycol ethers, and 0 to 10 percent by weight of deionized water.
    Type: Grant
    Filed: August 27, 1991
    Date of Patent: December 21, 1993
    Assignee: Kali-Chemie AG
    Inventors: Hans Buchwald, Andreas Brackmann, Boleslaus Raschkowski
  • Cleaning compositions (containing fluorochlorocarbon, C.sub.1 to C.sub.4 alkanol and ethyl or methyl proprionate)
    Patent number: 5246618
    Abstract: Improved cleaning compositions are disclosed based on fluorochlorohydrocarbons, alkanols and at least one ester selected from the group consisting of methyl propionate, ethyl propionate and ethyl acetate. The compositions may optionally contain additional additives and are highly suitable for industrial cleaning processes or for vapor degreasing, for example, particularly for removing resin soldering fluxes containing high amounts of activator.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: September 21, 1993
    Assignee: Kali-Chemie AG
    Inventors: Hans Buchwald, Boleslaus Raschkowski, Dieter Singer
  • Cleaning compositions
    Patent number: 5114609
    Abstract: Improved cleaning compositions are disclosed based on fluorochlorohydrocarbons, alkanols and at least one ester selected from the group consisting of methyl propionate, ethyl propionate and ethyl acetate. The compositions may optionally contain additional additives and are highly suitable for industrial cleaning processes or for vapor degreasing, for example, particularly for removing resin soldering fluxes containing high amounts of activator.
    Type: Grant
    Filed: January 4, 1990
    Date of Patent: May 19, 1992
    Assignee: Kali-Chemie AG
    Inventors: Hans Buchwald, Boleslaus Raschkowski, Dieter Singer
  • Cleaning compositions comprising dichlorotrifluoroethanes and alkanols
    Patent number: 5112517
    Abstract: Compositions composed of fluorochlorohydrocarbons selected from the group consisting of the dichlorotrifluoroethanes in admixture with lower alkanols. The compositions are especially suitable for use as cleaning compositions, particularly for removing organic resin fluxes or flux residues from printed circuit boards.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: May 12, 1992
    Assignee: Kalie-Chemie AG
    Inventors: Hans Buchwald, Andreas Brackmann, Boleslaus Raschkowski
  • Dichloromonofluoroethane compositions
    Patent number: 5087285
    Abstract: Liquid compositions having release effective properties, which contain dichloromonofluoroethanes as a solvent and at least one agent with release effective properties, and the use of these compositions and a process for their preparation are described.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: February 11, 1992
    Assignee: Kali-Chemie AG
    Inventors: Hans Buchwald, Boleslaus Raschkowski
  • Dichlorotrifluoroethane-containing mixtures
    Patent number: 4995908
    Abstract: Liquid compositions having properties of activity as release agents are described, which contain dichlorotrifluoroethane as a solvent and at least one agent with release effective properties, as well as the use of these compositions and a process for the preparation thereof.
    Type: Grant
    Filed: September 8, 1988
    Date of Patent: February 26, 1991
    Assignee: Kali-Chemie AG
    Inventors: Hans Buchwald, Boleslaus Raschkowski
  • Difluorotetrachloroethane mixtures and their use in removing waxes
    Patent number: 4906304
    Abstract: New mixtures comprising difluorotetrachloroethane and petroleum ethers are described for use, inter alia, as solvents, particularly for waxes.
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: March 6, 1990
    Assignee: Kali-Chemie Aktiengesellschaft
    Inventors: Hans Buchwald, Boleslaus Raschkowski, Dieter Singer
  • Process for producing novel products by hydrogen fluoride with esters of fatty acids
    Patent number: 4746463
    Abstract: A process is disclosed for reacting hydrogen fluoride with a fatty acid ester having a melting point less than than 60.degree. C. The resulting products and various applications for them as lubricants, lubricant additives and pharmaceutical carriers are also described.
    Type: Grant
    Filed: December 9, 1986
    Date of Patent: May 24, 1988
    Assignee: Kali-Chemie Aktiengesellschaft
    Inventors: Heinz-Rudi Feist, Hans Buchwald, Boleslaus Raschkowski, Werner Rudolph
  • Process for producing novel products by hydrogen fluoride with esters of fatty acids
    Patent number: 4659493
    Abstract: A process is disclosed for reacting hydrogen fluoride with a fatty acid ester having a melting point less than than 60.degree. C. The resulting products and various applications for them as lubricants, lubricant additives and pharmaceutical carriers are also described.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: April 21, 1987
    Assignee: Kali-Chemie Aktiengesellschaft
    Inventors: Heinz-Rudi Feist, Hans Buchwald, Boleslaus Raschkowski, Werner Rudolph
  • Process for the chip forming, cutting or abrasive working of metals
    Patent number: 4492641
    Abstract: A process for chip forming, cutting or abrasive treatment of metals using a fluorochlorohydrocarbon containing cooling lubricant is described. The lubricant contains esters of long chain carboxylic acids and monoalcohols having a total of 34 to 50 carbon atoms or derivatives of said esters. Also disclosed is a cooling lubricant to be used in the process and a process for the preparation of such a cooling lubricant.
    Type: Grant
    Filed: November 30, 1983
    Date of Patent: January 8, 1985
    Assignee: Kali-Chemie AG
    Inventors: Hans Buchwald, Boleslaus Raschkowski