Patents by Inventor Brynley Morris Phillips

Brynley Morris Phillips 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).

  • Carbohydrate-derived surfactants and their precursors
    Patent number: 5710332
    Abstract: A method for the manufacture of N,N dialkylglycamine compounds of general formula R.sub.2 NR.sub.1 R.sub.3 (I) by reacting a secondary amine of general formula R.sub.2 NHR.sub.3 (II) in which R.sub.2 is a straight or branched chain alkyl or hydroxyalkyl group having from 1 to 4 carbon atoms and R.sub.3 is a residue from a monosaccharide, with an alkali metal or alkaline earth metal aliphatic sulphate, R.sub.1 SO.sub.4 M, in which R.sub.1 is a straight or branched chain alkyl or alkenyl group having from 8 to 24 carbon atoms.The betaine, suphobetaine and N-oxidised derivatives of (I) are provided for use as mild surfactants.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: January 20, 1998
    Assignee: Albright & Wilson Limited
    Inventors: Brynley Morris Phillips, Ajit Kumar, Alan Smithson