Peroxy Component Patents (Class 510/309)
  • Patent number: 5616280
    Abstract: A bleaching composition for cellulosic materials such as paper pulp, cotton and cotton blends. The chemical system of the present invention includes a mixture of sodium hydroxide, optical brighteners and an enhanced hydrogen peroxide composition including a silicate-free stabilizer. In the preferred embodiment, the silicate-free stabilizer includes a magnesium salt; an aminoalkylphosphonic acid; dipicolinic acid; and the balance water. The resulting textile goods are soft, absorbent, silicate-free with a Hunter Scale whiteness of greater than about 85. Because a silicate-free stabilizer is used, low levels of extractable solids are obtained.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: April 1, 1997
    Assignee: Burlington Chemical Co., Inc.
    Inventors: Samuel B. Moore, James F. Leuck, Edwin T. Turner
  • Patent number: 5597790
    Abstract: Liquid detergent compositions are disclosed, which contain a solid peroxygen compound suspended in a liquid phase containing water and at least one water-miscible solvent, and low levels of silicate which provide adequate suspension for the solid peroxygen compound in the liquid phase.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: January 28, 1997
    Assignee: The Procter & Gamble Company
    Inventor: Christiaan A. J. K. Thoen
  • Patent number: 5595967
    Abstract: Improved detergent compositions, especially granular detergents, comprising bleach activators which form multiperacids, especially specific monoquaternary substituted bis(peroxycarbonic) acids, upon perhydrolysis are provided.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: January 21, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Gregory S. Miracle, Mark R. Sivik, Patti J. Kellett
  • Patent number: 5576282
    Abstract: Bleach boosters comprising zwitterionic imines and anionic imine polyions having a net negative charge are disclosed. The bleach boosters increase bleaching effectiveness in lower temperature solutions and demonstrate superior color safety profiles. The bleach boosters are ideally suited for inclusion into bleaching compositions including those with detersive surfactants and enzymes. Also provided is a laundry additive product including zwitterionic imines and anionic imine polyions with a net negative charge as bleach boosters. A method for laundering a fabric employing the bleach boosters of the present invention is also disclosed.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: November 19, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Gregory S. Miracle, Michael E. Burns, Patti J. Kellett, James C. T. R. Burckett-St. Laurent