Patents Represented by Attorney L. F. Kline
  • Patent number: 4246386
    Abstract: Hard, infusible, discrete beads of crosslinked copolymer are prepared by free-radical catalyzed polymerization of a monomer mixture in aqueous dispersion wherein a minor amount of a modifier, specifically an organic compound containing acetylenic or allylic unsaturation having the ability to moderate the rate of polymerization, is incorporated in the monomer mixture. Ion exchange resins having improved mechanical strength are obtained by attaching functional groups to the copolymer.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: January 20, 1981
    Assignee: Rohm and Haas Company
    Inventors: Thomas J. Howell, William G. Paterson, Ian Pattison
  • Patent number: 4082701
    Abstract: Crosslinked macroreticular and gel-type quaternary ammonium acrylamide anion exchange resins which possess a potential for hydrophobic bonding and thereby display a high affinity for slightly ionized or unionized refractory color bodies as well as for the more easily removed color bodies in aqueous sugar solutions are provided.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: April 4, 1978
    Assignee: Rohm and Haas Company
    Inventors: William Fries, Silvia Napierski
  • Patent number: 4082564
    Abstract: Crosslinked macroreticular and gel-type quaternary ammonium acrylamide anion exchange resins which possess a potential for hydrophobic bonding and thereby display a high affinity for slightly ionized or unionized refractory color bodies as well as for the more easily removed color bodies in aqueous sugar solutions are provided.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: April 4, 1978
    Assignee: Rohm and Haas Company
    Inventors: William Fries, Silvia Napierski