Patents by Inventor Andrea S. Allardice

Andrea S. Allardice 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).

  • Biodegradable quaternary hair and skin conditioners
    Patent number: 5610187
    Abstract: Disclosed are conditioning compositions for the hair and skin containing compounds of the formula (R.sup.1)(R.sup.2)N(CHCH.sub.2 OC(O)R).sub.2 X.sup.- wherein R.sup.1 is alkyl containing 1 to 6 carbon atoms, or hydroxyalkyl containing 1 to 6 carbon atoms; R.sup.2 is alkyl containing 1 to 6 carbon atoms, or benzyl; X.sup.- is an anion; and R is alkyl and alkylene of 12 to 22 carbon atoms having 0 to 3 carbon--carbon double bonds, provided that at least 2 different chain lengths R are present and 0, 1 and 2 such double bonds are present.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 11, 1997
    Assignee: Witco Corporation
    Inventors: Monna M. Manning, Andrea S. Allardice, Floyd Friedli
  • Biodegradable quaternary hair conditioners
    Patent number: 5552137
    Abstract: Disclosed are conditioning compositions for the hair and skin containing compounds of the formula (R.sup.1)(R.sup.2)N(CHCH.sub.2 OC(O)R).sub.2 X.sup.- wherein R.sup.1 is alkyl containing 1 to 6 carbon atoms, or hydroxyalkyl containing 1 to 6 carbon atoms; R.sup.2 is alkyl containing 1 to 6 carbon atoms, or benzyl; X.sup.- is an anion; and R is alkyl and alkylene of 12 to 22 carbon atoms having 0 to 3 carbon-carbon double bonds, provided that at least 2 different chain lengths R are present and 0, 1 and 2 such double bonds are present.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: September 3, 1996
    Assignee: Witco Corporation
    Inventors: Monna M. Manning, Andrea S. Allardice, Floyd Friedli