Patents Represented by Attorney Brian M. Bolam
  • 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: 5591703
    Abstract: Liquid or granular automatic dishwashing detergent compositions comprising builder, enzyme and low molecular weight modified polyacrylate copolymers for enhanced hard water filming and enzyme performance.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: January 7, 1997
    Assignee: The Procter & Gamble Company
    Inventor: Eugene S. Sadlowski
  • 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
  • Patent number: 5552556
    Abstract: Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising particular neutral or anionically charged substituted bleach activators are provided. More specifically, the invention relates to compositions which provide enhanced cleaning/bleaching benefits through the selection of perhydrolysis-selective bleach activators having specific leaving groups with a conjugate acid pK.sub.a above 13 and with specific ratios of the rate of perhydrolysis to the rate of hydrolysis and the rate of perhydrolysis to the rate of diacylperoxide production. Included are preferred activator compounds and methods for washing fabrics, hard surfaces, and tableware using the activators.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 3, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Gregory S. Miracle, Alan D. Willey, Kevin L. Kott, Michael E. Burns
  • Patent number: 5531915
    Abstract: Detergent compositions containing conventional detergent surfactants, detergent builders, and the like, and a chelant selected from ethylenediamine-N,N'-diglutaric acid (EDDG) and 2-hydroxypropylenediamine-N,N'-disuccinic acid (HPDDS) are disclosed. Such compositions provide enhanced removal of organic stains, such as food and beverage stains. The EDDG and HPDDS are biodegradable and contain no phorphorus.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: July 2, 1996
    Assignee: The Procter & Gamble Company
    Inventor: Christopher M. Perkins