Patents by Inventor Franz Neumayr

Franz Neumayr 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).

  • Preparation of chlorocarboxylic acid chlorides
    Patent number: 4764309
    Abstract: Chlorocarboxylic acid chlorides of the formula ##STR1## where R is H or alkyl and n is an integer from 2 to 4, are prepared by reacting a lactone of the formula ##STR2## with phosgene at elevated temperatures and in the presence of a quaternary ammonium salt.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: August 16, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Decker, Franz Neumayr
  • Manufacture of .beta.-chlorocarboxylic acid chlorides
    Patent number: 4213919
    Abstract: The manufacture of .beta.-chlorocarboxylic acid chlorides by reacting .alpha..beta.-olefinically unsaturated carboxylic acids with phosgene is advantageously carried out by first at least partially reacting the unsaturated carboxylic acid with hydrogen chloride and then carrying out the reaction with phosgene.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: July 22, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Datow, Martin Decker, Karl Merkel, Franz Neumayr
  • 1,3,5 Tris-(2-chloroformyl-oxyethyl)-isocyanurate
    Patent number: 4085269
    Abstract: A new compound, 1,3,5-tris-(2-chloroformyl-oxyethyl)-isocyanurate.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: April 18, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenther Daumiller, Karl Merkel, Franz Neumayr, Kurt Schneider
  • Removal of phosgene from off-gases
    Patent number: 4064218
    Abstract: Process for the removal of phosgene from an off-gas in which it is present in small quantities, by washing with an aqueous solution of alkali and ammonia.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: December 20, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinrich Scholz, Martin Decker, Franz Neumayr
  • Modified polymers of diisopropenylbenzene
    Patent number: 3933774
    Abstract: Modified copolymers of vinyl aromatic compounds or diene hydrocarbons with diisopropenylbenzene. They contain at least 0.2% of polymerized units of a group of the general formulaThe copolymers are intermediates in the manufacture of block copolymers and graft copolymers suitable for use as impact-resistant plastics or polymeric antistatic agents.
    Type: Grant
    Filed: March 21, 1974
    Date of Patent: January 20, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Neumayr, Gerhard Fahrbach, Erhard Seiler