And Reactant Having Alcoholic Or Phenolic -xh Group, Wherein X Is Chalcogen (and Wherein H Of -xh May Be Replaced By Substituted Or Unsubstituted Ammonium, Or By A Group Ia Or Iia Light Metal) Patents (Class 558/92)
  • Patent number: 4800229
    Abstract: Reactive dispersants for magnetic recording media are prepared by sequentially phosphating and esterifying or esterifying and phosphating alkoxylated alcohols having at least two carbon atoms and at least two hydroxyl groups. The phosphating agent can be phosphorus oxychloride while the esterifying agent can be acrylic acid.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: January 24, 1989
    Assignee: Diamond Shamrock Chemical Company
    Inventor: John G. Papalos
  • Patent number: 4751320
    Abstract: A novel phosphoric ester represented by the following formula (I): ##STR1## is produced by halogenating the hydroxyl group of a monoalkyl phosphoric acid, reacting the halogenated product with N-benzoyloxycarbonyl serine ester and then removing protecting groups for the carboxyl group and amino group.According to the present production process, the phosphoric ester can be obtained inexpensively at a high yield and high purity. Further, the phosphoric ester has a structure similar to that of the phospholipid and has nitrogen-containing polar groups such as amino group in one molecule, so that it has excellent emulsification ability and moisture keeping function. It is thus useful as emulsifiers, humectants and the like.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: June 14, 1988
    Assignee: Kao Corporation
    Inventors: Mitsuharu Masuda, Tomihiro Kurosaki
  • Patent number: 4724265
    Abstract: Liquid mixed triaryl thiophosphate mixtures can be prepared by forming a mixture of phenol and substituted phenols, forming a phosphite from that mixture and sulfurizing the phosphite, washing the thiophosphate with aqueous base, and drying the so washed thiophosphate under mild conditions. The products are liquid while containing at least 25 percent symmetrical triaryl thiophosphate. Colorless and odorless products are prepared.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: February 9, 1988
    Assignee: Stauffer Chemical Company
    Inventors: Fred Jaffe, Alan M. Aaronson
  • Patent number: 4697029
    Abstract: Phosphobrominated polyetherpolyols which contain in their molecule oxyalkylene radicals bound to phosphorus atoms in the phosphate or phosphonate state and 1,4-dioxy-2,3-dibromo-2-butylene radicals in which the ratio of the total number of oxyalkylene radicals to the total number of phosphorus atoms is equal to at least 7.These polyetherpolyols can be used as flame-retarding reactive additives in the manufacture of flame-retardant flexible polyurethane foams involving polyetherpolyols, the foams possessing good comfort-conferring properties.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: September 29, 1987
    Assignee: Solvay & Cie. (Societe Anonyme)
    Inventors: Andre Collin, Henri Wautier
  • Patent number: 4629803
    Abstract: A continuous process for producing alkyl and alkoxy alkyl phosphates in which an alkali metal alkoxide at a temperature at 50.degree. C. or less is continuously fed to a reactor while phosphorus oxychloride is continuously fed to the reactor under ratio control. Part of the contents of the reactor is circulated through a cooling device or apparatus to help maintain optimum reaction temperature. The phosphorus oxychloride ratio is adjusted to maintain proper reaction end point. Crude reaction product is continuously removed from the reactor and quenched with water to remove sodium chloride and stop the reaction.
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: December 16, 1986
    Assignee: FMC Corporation
    Inventors: Tawny R. Hall, Harry M. Smith