And Oxygen Containing (e.g., Fulminate, Cyanate, Etc.) Patents (Class 423/365)
  • Process for preparing cyanic acid
    Patent number: 3970742
    Abstract: The invention is directed to a process for preparing cyanic acid from urea, comprising atomizing urea in a tubular reactor in the presence of a stream of a carrier gas to obviate the formation and deposition of by-products on the inner walls of the tubular reactor, thereby increasing the efficiency and production yields of the process.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: July 20, 1976
    Assignee: Stamicarbon B.V.
    Inventor: Johannes D. M. Verstegen
  • Method for improving the adhering ability of vulcanized rubber surfaces
    Patent number: 3968198
    Abstract: A method for improving the adhering ability of a vulcanized rubber surface by treating said surface with a solution of iodine isocyanate or a mixed solution of iodine isocyanate and iodine to provide a high adhering ability to said surface.The thus treated vulcanized rubber surface can be adhered strongly to other vulcanized rubber or the other various materials by contacting these materials tightly using an adhesive or without using an adhesive.
    Type: Grant
    Filed: January 28, 1974
    Date of Patent: July 6, 1976
    Assignee: Bridgestone Tire Company Limited
    Inventors: Toshio Honda, Shoji Tanaka, Yukio Fukuura, Yoshikatsu Suzuki, Itsuo Tanuma, Koichi Iwami, Shoson Shibata
  • Process for the preparation of carbonyldiisocyanate
    Patent number: 3956468
    Abstract: The instant invention is directed to a process for preparing carbonyldiisocyanate comprising reacting N-chlorocarbonylisocyanate with trichloroisocyanuric acid and/or an alkali metal salt of dichloroisocyanuric acid at a temperature of from about 20.degree.C to about 200.degree.C.
    Type: Grant
    Filed: February 11, 1975
    Date of Patent: May 11, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventor: Hermann Hagemann
  • Process for preparing alkali metal and alkaline-earth metal cyanates
    Patent number: 3950497
    Abstract: Cyanates of alkali and alkaline-earth metals are prepared by reacting a salt such as the hydroxide, carbamate or carbonate of the metal in aqueous solution or slurry with cracked urea gas which is a gaseous mixture of ammonia and (iso)cyanic acid.
    Type: Grant
    Filed: June 19, 1974
    Date of Patent: April 13, 1976
    Assignee: Stamicarbon B.V.
    Inventor: Johannes D. M. Verstegen
  • Process for the preparation of carbonyl diisocyanate
    Patent number: 3941873
    Abstract: This invention relates to a process for the preparation of carbonyl diisocyanate, CO(NCO).sub.2, which comprises reacting trichloroisocyanuric acid and/or an alkali metal salt of dichloroisocyanuric acid with phosgene at temperatures of from about 150.degree. to about 200.degree.C.
    Type: Grant
    Filed: February 11, 1975
    Date of Patent: March 2, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventor: Hermann Hagemann
  • Process for preparing potassium cyanate from potassium hydroxide and urea
    Patent number: 3935300
    Abstract: Potassium cyanate is prepared by reacting from 1.75 to 2.15 moles of urea per mole of potassium hydroxide.
    Type: Grant
    Filed: February 20, 1974
    Date of Patent: January 27, 1976
    Assignee: Mississippi Chemical Corporation
    Inventors: Gerald L. Tucker, Elmer Ladelle Blanton