Process of production of water-soluble linear polymers of very high molecular weight Patent #: 3957739
ApplicationNo. 05/613231 filed on 09/15/1975
US Classes:524/801, Process of preparing water-in-oil emulsion or dispersion, or product thereof523/335, Creaming, agglomerating, or coalescing a solid polymer latex or aqueous dispersion wherein solid polymer latex or aqueous dispersion is the result523/336, Inverting phase relationships or reapportioning the distribution of ingredients among phases523/339, With removal of a phase524/110, Six-membered chalcogen ring524/166, Metal524/317, Oxygen atom other than as part of a carboxylic acid group, e.g., glycolic ester, etc.524/339, C-O-C linkage524/376, OH group, e.g., ether-alcohol solvent, etc.524/555, From nitrogen-containing monomer other than acrylonitrile or methacrylonitrile524/922FLOCCULATING, CLARIFYING, OR FINING COMPOSITIONS
ExaminersPrimary: Rzucidlo, Eugene C.
Attorney, Agent or Firm
AbstractWater soluble polymers dispersed in a water-in-oil emulsion are treated to reduce the water content thereof to provide a polymer dispersed in oil which is stable to coagulation or agglomeration during subsequent treatment. The composition can be chemically modified and/or made self dissolving in water by addition of surfactant without polymer agglomeration.