Patents by Inventor Elizabeth Ann Salter

Elizabeth Ann Salter 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).

  • Aqueous polymer dispersion
    Patent number: 7858695
    Abstract: The invention provides a process for preparing an aqueous dispersion of water insoluble heteropolymeric particles comprising polymerising in an aqueous reaction medium ethylenically unsaturated monomers, said ethylenically unsaturated monomers comprising ionisable ethylenically unsaturated monomers and non-ionisable hydrophilic ethylenically unsaturated monomers, to form said heteropolymeric particles dispersed in said aqueous reaction medium, wherein the monomers in said reaction medium at any point in time comprise less than 5 weight % of ionisable ethylenically unsaturated monomer, wherein for at least a part of the polymerisation the monomers in said reaction medium have a composition which is maintained with an ionisable ethylenically unsaturated monomer content of from 0.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: December 28, 2010
    Assignee: DuluxGroup (Australia) Pty Ltd
    Inventors: Amanda Jane Chalmers, Jason Michael Farrugia, Elizabeth Ann Salter, Christopher Henry Such, Olga Maree MacKinnon
  • Anionic alkoxylate surfactant
    Patent number: 6590030
    Abstract: This invention relates to an anionic alkoxylate surfactant of formula (I), where R is a di- or tri-unsaturated C4-22 straight or branched hydrocarbon chain, at least two double bonds of said unsaturated chain being conjugated and exhibiting opposite geometric isomerism; m is 0 or 1; Y is O or NR′; each R′ is independently selected from hydrogen, C1-6 alkyl and phenyl; n is 1 to 50; and OX is an anionic group selected from the group consisting of acids or salts of sulfate, phosphate, sulphosuccinate, succinate, carbomethyl, maleate, carboxyethyl, alkenylsuccinate, phthalate, sulphoethyl, 3-sulpho-2-hydroxypropyl, sulphopropyl, oxalate and citrate.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: July 8, 2003
    Assignee: Orica Australia Pty Ltd
    Inventors: Elizabeth Ann Salter, Patrick William Houlihan, Michael Anthony Bajraszewski, Rodney Walter Parr, Keith Moody
  • Anionic alkoxylate surfactant
    Publication number: 20020061828
    Abstract: This invention relates to an anionic alkoxylate surfactant of formula (I), where R is a di- or tri-unsaturated C4-22 straight or branched hydrocarbon chain, at least two double bonds of said unsaturated chain being conjugated and exhibiting opposite geometric isomerism; m is 0 or 1; Y is O or NR′; each R′ is independently selected from hydrogen, C1-6 alkyl and phenyl; n is 1 to 50; and OX is an anionic group selected from the group consisting of acids or salts of sulfate, phosphate, sulphosuccinate, succinate, carbomethyl, maleate, carboxyethyl, alkenylsuccinate, phthalate, sulphoethyl, 3-sulpho-2-hydroxypropyl, sulphopropyl, oxalate and citrate.
    Type: Application
    Filed: August 9, 2001
    Publication date: May 23, 2002
    Inventors: Elizabeth Ann Salter, Patrick William Houlihan, Michael Anthony Bajraszewski, Rodney Walter Parr, Keith Moody
  • Anionic alkoxylate surfactant from conjugated unsaturated alcohol
    Patent number: 6335314
    Abstract: This invention relates to an anionic alkoxylate surfactant (I), where R is di- or tri-unsaturated C4-22 straight or branched hydrocarbon chain, at least two double bonds of said unsaturated chain being conjugated and exhibiting opposite geometric isomerism; m is 0 or 1; Y is O or NR; each R40 is independently selected from hydrogen, C1-6 alkyl and phenyl; n is 1 to 50; and OX is an anionic group selected from the group consisting of acids or salts of sulphate, phosphate, sulphosuccinate, succinate, carboxymethyl, maleate, carboxyethyl, alkenylsuccinate, phthalate, sulphoethyl, 3-sulpho-2-hydroxypropyl, sulphopropyl, oxalate and citrate.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: January 1, 2002
    Assignee: Orica Australia Pty. Ltd.
    Inventors: Elizabeth Ann Salter, Patrick William Houlihan, Michael Anthony Bajraszewski, Rodney Walter Parr, Keith Moody