Patents by Inventor Morris Lewellyn

Morris Lewellyn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Water-in-Oil Emulsion Compositions and Methods for Making and Using the Same
    Publication number: 20160185613
    Abstract: The suspended solids content of a process stream in a process for producing alumina is reduced by contacting the stream with silicon-containing polymers provided by water-in-oil compositions.
    Type: Application
    Filed: February 7, 2011
    Publication date: June 30, 2016
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventors: Haunn-Lin Tony Chen, Douglas A. Cywar, Matthew J. Davis, Morris Lewellyn
  • Process for removing hydrazine from hydroxlyamine solutions
    Patent number: 8703088
    Abstract: The present invention relates to processes for reducing or eliminating the amount of hydrazine from a hydroxylamine-free base containing hydrazine by treating said hydroxylamine-free base with a scavenger agent, and to the hydroxylamine-free base thereby obtained, as well as to its use for producing microdispersions containing a hydroxamated polymer for use as a flocculant in the Bayer process.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: April 22, 2014
    Assignee: Cytec Technology Corp.
    Inventors: Morris Lewellyn, Alan S. Rothenberg, Haunn-Lin Tony Chen, Lino G. Magliocco, Thomas P. Sassi
  • Microdispersions of hydroxamated polymers and methods of making and using them
    Patent number: 8685256
    Abstract: Methods of producing microdispersions containing hydroxamated polymers by reacting water-in-oil microdispersions having vinyl polymers containing one or more pendant functional groups that react with hydroxylamine, with a hydroxylamine-free base substantially free of inorganic salt and containing less than 500 ppm hydrazine are disclosed herein, along with the microdispersions thereby obtained.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: April 1, 2014
    Assignee: Cytec Technology Corp.
    Inventors: Morris Lewellyn, Alan S. Rothenberg, Haunn-Lin Tony Chen, Lino G. Magliocco, Thomas P. Sassi
  • PROCESS FOR REMOVING HYDRAZINE FROM HYDROXLYAMINE SOLUTIONS
    Publication number: 20130315812
    Abstract: The present invention relates to processes for reducing or eliminating the amount of hydrazine from a hydroxylamine-free base containing hydrazine by treating said hydroxylamine-free base with a scavenger agent, and to the hydroxylamine-free base thereby obtained, as well as to its use for producing microdispersions containing a hydroxamated polymer for use as a flocculant in the Bayer process.
    Type: Application
    Filed: July 29, 2013
    Publication date: November 28, 2013
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventors: Morris LEWELLYN, Alan S. ROTHENBERG, Haunn-Lin Tony CHEN, Lino G. MAGLIOCCO, Thomas P. SASSI
  • FLOCCULANT COMPOSITIONS CONTAINING SILICON-CONTAINING POLYMERS
    Publication number: 20130048571
    Abstract: A flocculant composition that includes a blend of a first water-in-oil emulsion having a silicon-containing polymer in its aqueous phase and a second water-in-oil emulsion having an anionic polymer in its aqueous phase. The silicon-containing polymer and the anionic polymer are present in the composition at a weight ratio between 100:1 and 1:100.
    Type: Application
    Filed: February 7, 2011
    Publication date: February 28, 2013
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventors: Haunn-Lin Tony Chen, Douglas A. Cywar, Matthew J. Davis, Morris Lewellyn
  • Water-in-oil-in-water emulsions of hydroxamated polymers and methods for using the same
    Patent number: 8216534
    Abstract: A method and composition for flocculation and separation of suspended solids from an industrial process stream containing suspended solids is provided. The method includes the steps of adding to the stream a water-in-oil-in-water emulsion polymer in an amount effective to flocculate the suspended solids and separating the flocculated solids therefrom. The composition is a water-in-oil-in-water emulsion of a water-soluble polymer in which the continuous phase is an aqueous solution of a water-soluble salt.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: July 10, 2012
    Assignee: Cytec Technology Corporation
    Inventors: Franklyn A. Ballentine, Morris Lewellyn
  • PROCESSES FOR REMOVING HYDRAZINE FROM HYDROXYLAMINE SOLUTIONS
    Publication number: 20120152852
    Abstract: The present invention relates to processes for reducing or eliminating the amount of hydrazine from a hydroxylamine-free base containing hydrazine by treating said hydroxylamine-free base with a scavenger agent, and to the hydroxylamine-free base thereby obtained, as well as to its use for producing microdispersions containing a hydroxamated polymer for use as a flocculant in the Bayer process.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 21, 2012
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventors: Morris LEWELLYN, Alan S. ROTHENBERG, Haunn-Lin Tony CHEN, Lino G. MAGLIOCCO, Thomas P. SASSI
  • MICRODISPERSIONS OF HYDROXAMATED POLYMERS AND METHODS OF MAKING AND USING THEM
    Publication number: 20120153209
    Abstract: Methods of producing microdispersions containing hydroxamated polymers by reacting water-in-oil microdispersions having vinyl polymers containing one or more pendant functional groups that react with hydroxylamine, with a hydroxylamine-free base substantially free of inorganic salt and containing less than 500 ppm hydrazine are disclosed herein, along with the microdispersions thereby obtained.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 21, 2012
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventors: Morris LEWELLYN, Alan S. ROTHENBERG, Haunn-Lin Tony CHEN, Lino G. MAGLIOCCO, Thomas P. SASSI
  • WATER-IN-OIL-IN-WATER EMULSIONS OF HYDROXAMATED POLYMERS AND METHODS FOR USING THE SAME
    Publication number: 20110150754
    Abstract: A method and composition for flocculation and separation of suspended solids from an industrial process stream containing suspended solids is provided. The method includes the steps of adding to the stream a water-in-oil-in-water emulsion polymer in an amount effective to flocculate the suspended solids and separating the flocculated solids therefrom. The composition is a water-in-oil-in-water emulsion of a water-soluble polymer in which the continuous phase is an aqueous solution of a water-soluble salt.
    Type: Application
    Filed: March 3, 2011
    Publication date: June 23, 2011
    Applicant: CYTEC TECHNNOLOGY CORP.
    Inventors: Franklyn A. Ballentine, Morris Lewellyn
  • USE OF SILICON-CONTAINING POLYMERS FOR IMPROVED FLOCCULATION OF SOLIDS IN PROCESSES FOR THE PRODUCTION OF ALUMINA FROM BAUXITE
    Publication number: 20100098607
    Abstract: The suspended solids content of a process stream in a process for digesting bauxite ore to produce alumina is reduced by contacting the stream with silicon-containing polymers.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 22, 2010
    Inventors: Matthew J. Davis, Morris Lewellyn, Qi Dai, Haunn-Lin Tony Chen, Matthew Taylor
  • Water-in-oil-in-water emulsions of hydroxamated polymers and methods for using the same
    Publication number: 20060191853
    Abstract: A method and composition for flocculation and separation of suspended solids from an industrial process stream containing suspended solids is provided. The method includes the steps of adding to the stream a water-in-oil-in-water emulsion polymer in an amount effective to flocculate the suspended solids and separating the flocculated solids therefrom. The composition is a water-in-oil-in-water emulsion of a water-soluble polymer in which the continuous phase is an aqueous solution of a water-soluble salt.
    Type: Application
    Filed: February 24, 2006
    Publication date: August 31, 2006
    Inventors: Franklyn Ballentine, Morris Lewellyn
  • Dispersal of polyacrylamides
    Patent number: 6642351
    Abstract: Polymer compositions comprised of small, dry polyacrylamide particles may be dispersed into water at industrially useful rates to form aqueous compositions, by separating the particles from each other and bringing them into contact with a moving stream of water in the manner described herein. The resulting aqueous compositions may be used as a treating solution in diverse applications such as flocculants in water treating, papermaking, mining, oil field, and biotechnological separations.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: November 4, 2003
    Assignee: Cytec Technology Corp.
    Inventors: John Harlukowicz, Morris Lewellyn, Roderick G. Ryles