Patents by Inventor Jacques Lonchampt

Jacques Lonchampt 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).

  • Antifreeze concentrates based on dicarboxylic acids, molybdate and triazoles or thiazoles, and coolant compositions comprising them
    Patent number: 6802988
    Abstract: Antifreeze concentrates are based on a mixture of at least two different C3- to C16-dicarboxylic acids, molybdate and a mixture of at least two different triazoles or thiazoles.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: October 12, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Wenderoth, Ralf Strauss, Jacques Lonchampt
  • Polyoxyalkylene triol additives for minimizing deposits from aqueous heat-exchanging fluids
    Patent number: 4260504
    Abstract: PCT No. PCT/FR78/00008 Sec. 371 Date Mar. 22, 1979 Sec. 102(e) Date Mar. 22, 1979 PCT Filed July 10, 1978The invention concerns a process for preventing the formation of deposits on the walls of the heating or cooling circuits of heat exchangers in which an aqueous heat-exchange liquid circulates.This process comprises mixing with the heat-exchange liquids from about 0.3 to about 5% by weight of a product of polyaddition of ethylene oxide and propylene oxide on a monohydric alcohol, water, a diol or a triol, the ethylene oxide representing from 60% to 90% by weight of the fixed alkylene oxides.This process can be used in particular in internal combustion engine cooling circuits.
    Type: Grant
    Filed: March 22, 1979
    Date of Patent: April 7, 1981
    Assignee: Naphtachimie
    Inventors: Marcel J. Tucoulat, Jacques Lonchampt