Patents by Inventor Peter J. Waters

Peter J. Waters 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).

  • Use of substituted 2-(2'-hydroxyaryl)-2H-benzotriazolesulfonates as photostabilizing agents for natural and synthetic fibres
    Patent number: 4770667
    Abstract: A method for protecting synthetic and natural fibres against phototendering. The method comprises treating the fibres with a substituted benzotriazolesulfonate of the following formula: ##STR1## wherein (I) R.sub.1 is hydrogen or halogen, R.sub.2 is hydrogen or alkyl, R.sub.3 is hydrogen or hydroxy, R.sub.4 is --SO.sub.3 X where X is hydrogen or an alkali metal, and R.sub.5 is hydrogen, with the proviso that R.sub.2 is not methyl when R.sub.1 and R.sub.3 are hydrogen; or(II) R.sub.1, R.sub.3 and R.sub.4 are hydrogen, R.sub.2 is --SO.sub.3 X where X is hydrogen or an alkali metal, and R.sub.5 is --OR.sub.6 where R.sub.6 is hydrogen or alkyl; or(III) R.sub.1 is hydrogen or halogen, R.sub.2 is --SO.sub.3 X where X is hydrogen or an alkali metal, R.sub.3 and R.sub.5 are hydrogen, and R.sub.4 is hydrogen, alkyl or benzyl; or(IV) R.sub.1 is --SO.sub.3 X where X is hydrogen or an alkali metal, R.sub.2 is alkyl, R.sub.3 and R.sub.5 are hydrogen, and R.sub.4 is hydrogen or alkyl;under acidic conditions.
    Type: Grant
    Filed: March 17, 1987
    Date of Patent: September 13, 1988
    Assignee: Board of Regents, U T Systems
    Inventors: Neil A. Evans, Ian H. Leaver, Judi Rosevear, Peter J. Waters, John F. K. Wilshire
  • Use of sulfonated 2-(2'-hydroxyaryl)-s-triazines as photostabilizing agents for wool and other protein fibres
    Patent number: 4698064
    Abstract: A method for protecting proteinaceous fibres, either dyed or in their natural form, against photodegradation and thermal degradation. The method comprises treating the fibres with a sulfonated s-triazine derivative of formula (I), wherein R.sup.1 is hydrogen, alkyl, hydroxyl, O-alky, OOC-alkyl or OOCNH-alkyl; R.sup.2 is hydrogen, alkyl or SO.sub.3 X; R.sup.3 is aryl, substituted aryl or O-alkyl; and X is hydrogen, NH.sub.4 or alkali metal, or formula (II), wherein R.sup.1 and R.sub.4 are hydrogen, alkyl, hydroxyl, O-alkyl, OCC-alkyl or OOCNH-alkyl; R.sup.2 and R.sup.5 are hydrogen, alkyl or --SO.sub.3 X; R.sup.3 is hydrogen or --SO.sub.3 X; R.sup.6 is aryl, substituted aryl, O-alkyl or O-aryl; and X is hydrogen, NH.sub.4 or alkali metal; under acidic conditions. The method is particularly suitable for treating dyed and undyed wool, silk, mohair and cashmere fibers, including blends thereof.
    Type: Grant
    Filed: August 7, 1986
    Date of Patent: October 6, 1987
    Assignee: Commonwealth Scientific and Industrial Research Org.
    Inventors: Neil A. Evans, Brian Milligan, Peter J. Waters
  • Use of substituted 2-(2-hydroxyaryl)-2H-benzotriazolesulfonates as photostabilizing agents for natural synthetic fibres
    Patent number: 4668235
    Abstract: A method for protecting synthetic and natural fibres against phototendering. The method comprises treating the fibres with a substituted benzotriazolesulfonate of the following formula: ##STR1## wherein (I) R.sub.1 is hydrogen or halogen, R.sub.2 is hydrogen or alkyl, R.sub.3 is hydrogen or hydroxy, R.sub.4 is --SO.sub.3 X where X is hydrogen or an alkali metal, and R.sub.5 is hydrogen, with the proviso that R.sub.2 is not methyl when R.sub.1 and R.sub.3 are hydrogen; or(II) R.sub.1, R.sub.3 and R.sub.4 are hydrogen, R.sub.2 is --SO.sub.3 X where X is hydrogen or an alkali metal, and R.sub.5 is --OR.sub.6 where R.sub.6 is hydrogen or alkyl; or(III) R.sub.1 is hydrogen or halogen, R.sub.2 is --SO.sub.3 X where X is hydrogen or an alkali metal, R.sub.3 and R.sub.5 are hydrogen, and R.sub.4 is hydrogen, alkyl or benzyl; or(IV) R.sub.1 is --SO.sub.3 X where X is hydrogen or an alkali metal, R.sub.2 is alkyl, R.sub.3 and R.sub.5 are hydrogen, and R.sub.4 is hydrogen or alkyl;under acidic conditions.
    Type: Grant
    Filed: August 7, 1984
    Date of Patent: May 26, 1987
    Assignee: The Commonwealth of Australia Commonwealth Scientific & Industrial Research Organization
    Inventors: Neil A. Evans, Ian H. Leaver, Judi Rosevear, Peter J. Waters, John F. K. Wilshire