Phosphorus Bonded Directly To The Single Bonded X Of A -c(=x)-x-group, Wherein The X's May Be The Same Or Diverse Chalcogens Patents (Class 562/876)
  • Salt of carboxyethyl phosphinate ester and flame retardant thermoplastic resin composition containing the same
    Patent number: 7939588
    Abstract: A composition includes a salt of a carboxyethyl phosphinate ester compound. Additionally, the composition may also include a polymeric resin, such as a thermoplastic resin. The composition may have improved physical and chemical properties including flame retardancy, thermal stability, and hygroscopicity.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: May 10, 2011
    Assignee: Cheil Industries Inc
    Inventors: Sang Hyun Hong, Jeong Hwan Ku, Su Hak Bae, Jin Hwan Choi, Jin Hwan Kim, Min Soo Lee
  • Method for the production of acylphosphine oxides
    Patent number: 7368604
    Abstract: Process for the preparation of aromatic acylphosphine oxides (II) in which aromatic carboxyphosphines (I) are converted to the acylphosphine oxides (II)
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: May 6, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Maase, Klemens Massonne
  • 1-Hydroxy-omega-(alkyl- or arylphosphinico)alkane-1,1-diphosphonic acids, salts thereof, and processes for the preparation of these compounds
    Patent number: 4960928
    Abstract: The present invention relates to 1-hydroxy-.omega.-(alkyl- or arylphosphinico)alkane-1,1-diphosphonic acids of the general formula I ##STR1## and to the salts of these acids of the general formula II ##STR2## where, in these formulae, R.sup.1 denotes an alkyl radical having 1 to 6 carbon atoms, a cycloalkyl radical having 5 to 7 carbon atoms or an aryl radical having 6 to 10 carbon atoms, R.sup.2 denotes a straight-chain or branched alkylene radical having 1 to 6 carbon atoms and A denotes a monovalent equivalent of a cation of an inorganic or organic base. In addition, processes are described for the preparation of these novel compounds.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: October 2, 1990
    Assignee: Hoechst Aktiengesellschaft Knapsack
    Inventors: Werner Klose, Helmut Klemp