Patents Assigned to Rhodia Consumer Specialties Ltd.
  • Fire-retardant agent based on polyphosphoric or orthophosphoric acid impregnated on a highly porous mineral oxide method for preparation and use thereof
    Patent number: 7482400
    Abstract: The invention relates to a novel fire-retardant agent based on polyphosphoric or orthophosphoric acid impregnated on a highly porous mineral oxide, method for preparation and use thereof for fire-retarding treatment of materials, in particular of polymers.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: January 27, 2009
    Assignee: Rhodia Consumer Specialties, Ltd.
    Inventor: Lorraine Leite
  • Solvent systems
    Patent number: 6878846
    Abstract: In a method for making bisphosphonates by reacting a carbonyl compound with a phosphorus halide, the reaction is carried out in a solvent/carrier system which is a mixture of an amine hydrochloride, phosphorous acid and optionally phosphoric acid.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: April 12, 2005
    Assignee: Rhodia Consumer Specialties Ltd.
    Inventors: Justin Mark Cowan, Christopher John Harris, Michael John Harrison