Abstract: Aqueous liquid detergent compositions are described which comprise a proteolytic enzyme wherein the proteolytic activity is reversibly inhibited by a peptide aldehyde.
Type:
Grant
Filed:
February 8, 1995
Date of Patent:
November 19, 1996
Assignee:
The Procter & Gamble Company
Inventors:
James P. Johnston, Regine Labeque, Pierre M. A. Lenoir, Christiaan A. J. K. Thoen, John M. McIver
Abstract: Starch is oxidized in a controlled manner using nitric acid, sulfuric acid and vanadium catalyst. The resulting oxidized starch is useful in detergent compositions as a dispersant, builder and cleaning auxiliary.
Abstract: Cleaning and soil dispersing compositions comprising ethoxylated/propoxylated polyalkyleneamine polymers are provided. Thus, detergent compositions which comprise ethoxylated/propoxylated polyalkyleneamine polymers, such as poly(ethyleneimine) with a degree of ethoxylation of 1.0, provide soil dispersing performance in the wash liquor and whitening and/or cleaning benefits to fabrics, hard-surfaces, or dishware.
Type:
Grant
Filed:
January 16, 1996
Date of Patent:
October 15, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Randall A. Watson, Eugene P. Gosselink, Shulin Zhang
Abstract: The present invention relates to dryer-activated fabric softening compositions comprising: (A) fabric softening compounds; and (B) an ester of an alcohol perfume wherein the ester has at least one free carboxylic acid. The ester has the general formula: ##STR1## wherein R is selected from the group consisting of substituted or unsubstituted C.sub.1-C.sub.30 straight, branched or cyclic alkyl, alkenyl, alkynyl, alkylaryl, aryl group; or ring containing a heteroatom, R' is a perfume alcohol with a boiling point at 760 mm Hg of less than about 300 .degree. C.; and m and n are independently an integer of 1 or greater.
Type:
Grant
Filed:
November 3, 1995
Date of Patent:
October 8, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Scott W. Waite, John C. Severns, Mark R. Sivik, Frederick A. Hartman
Abstract: A) A metallocatalyst selected from: a) metalloporphin and water-soluble or water-dispersable derivatives thereof; b) metaloporphyrin and water-soluble or water-dispersable derivatives thereof; c) metallophthalocyanine and water-soluble or water-dispersable derivatives thereof; B) a polyamine N-oxide containing polymers; C) an efficient amount of a bleaching agent.
Type:
Grant
Filed:
August 28, 1995
Date of Patent:
October 1, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Abdennaceur Fredj, Frederick E. Hardy, Alan D. Willey, James P. Johnston, Regine Labeque, Christiaan A. J. K. Thoen
Abstract: Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising multiple-substituted bleach activators which have at least one quaternary nitrogen atom, are provided. More specifically, the invention relates to compositions which provide enhanced cleaning/bleaching benefits though the selection of multiple-substituted quaternary bleach activators having specific leaving groups with a conjugate acid aqueous pK.sub.a above 13 and with advantageous ratios of rate of perhydrolysis to rate of hydrolysis and of rate of perhydrolysis to 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:
October 1, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Eugene P. Gosselink, Gregory S. Miracle, Alan D. Willey, Michael E. Burns, Kevin L. Kott, Mark R. Sivik, Lucille F. Taylor
Abstract: Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising multiple-substituted bleach activators which have at least one quaternary nitrogen atom,, are provided. More specifically, the invention relates to compositions which provide enhanced cleaning/bleaching benefits though the selection of multiple-substituted quaternary bleach activators having specific leaving groups with a conjugate acid aqueous pK.sub.a above 13 and with advantageous ratios of rate of perhydrolysis to rate of hydrolysis and of rate of perhydrolysis to 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:
October 1, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Eugene P. Gosselink, Gregory S. Miracle, Alan D. Willey, Michael E. Burns, Kevin L. Kott, Mark R. Sivik, Lucille F. Taylor
Abstract: A method for manufacturing cobalt complexes having the formula:[Co(NH.sub.3).sub.5 OAc]T.sub.ysaid method comprising reacting cobalt (II) acetate having the formula Co(OAc).sub.2 4H.sub.2 O with concentrated ammonium hydroxide/ammonium acetate, followed by oxidizing agent (e.g., peroxide).
Abstract: Soil removal performance of granular laundry detergents containing aluminosilicate builders is improved by presence of polyaspartic acid (or its water-soluble salts) as a co-builder/soil dispersant.
Abstract: A process for preparing particulate bodies containing a substantially water-insoluble organic peroxyacid compound, which process does not include a solidification step, including an early step of intimately mixing substantially water-insoluble peroxyacid compound with a peroxyacid-stable, water-soluble surfactant.
Type:
Grant
Filed:
November 23, 1993
Date of Patent:
July 16, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Benjamin E. Chapman, Steven M. Gabriel, Jeffrey E. Boucher, Daniel L. Strauss
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:
February 3, 1995
Date of Patent:
July 9, 1996
Inventors:
Gregory S. Miracle, Mark R. Sivik, Patti J. Kellett
Abstract: Improved automatic dishwashing detergent compositions, especially granular detergents, comprising bleach activators which form multiperacids, especially specific monoquaternary substituted bis(peroxycarbonic) acids, upon perhydrolysis are provided.
Abstract: Chemical synthesis of amido acids, and their conversion to amido acid phenyl ester sulfates for use as bleach activators, starting from carboxylic acids and lactams.
Type:
Grant
Filed:
February 23, 1995
Date of Patent:
July 9, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Stephen W. Heinzman, Jeffrey S. Dupont, William C. Tettenhorst
Abstract: Improved detergent compositions, especially granular automatic dishwashing detergents, comprising multiquaternary bleach activators are provided. The bleach activators contain multiple quaternary nitrogen groups, preferably at least three such groups and preferably have at least one quaternary nitrogen group in the peracid-forming portion of the bleach activator as well as at least one quaternary nitrogen group in the leaving-group portion.
Type:
Grant
Filed:
May 8, 1995
Date of Patent:
May 28, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Mark R. Sivik, Lucille F. Taylor, James C. T. R. Burckett-St. Laurent
Abstract: The present invention concerns cellulase-containing granular detergent compositions which are in a "compact" form, i.e. they are of a relatively high density and contain a relatively low amount of inorganic filler salt compared to conventional detergent compositions. In the detergent compositions herein the cellulase is defined by the C14CMC method described herein and preferably comprises a specific single-component endoglucanase.
Type:
Grant
Filed:
November 19, 1993
Date of Patent:
May 28, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Andre C. Baeck, Raphael A. Ceulemans, Alfred Busch
Abstract: High quality acyl lactam imides are prepared by reacting an acyl lactam of the formula ##STR1## where 5 carbon atoms and an acylating acid of the formula R'CO.sub.2 H or by reacting a lactam, an anhydride of the formula (RCO).sub.2 O where R is 1 to 5 carbon atoms and an acylating acid, preferably in the presence of a base catalyst. The process affords acyl lactam imides in high yield and at lower reaction temperatures by providing for the removal of volatile carboxylic acid by-products under vacuum or by the use of a stripping gas. The acyl lactam imides are particularly suited for use as bleach activators in detergent compositions.
Abstract: Yeast or other micro-organism cells for use in the encapsulation of liquids (e.g. liquid bleach activators for use in laundry detergent compositions) are deodorised by treatment with a peroxygen bleach, e.g. hydrogen peroxide.
Type:
Grant
Filed:
June 13, 1994
Date of Patent:
March 5, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Frederick E. Hardy, Alan D. Willey, Stefano Scialla
Abstract: Poly(glutamic acid) is used as a dispersing, soil-suspending or anti-redeposition agent in laundry detergent or other cleaning compositions that also contain a detersive surfactant. Suitable polymers include not only the homopolymers of glutamic acid but also block, graft or random copolymers of glutamic acid with biodegradable monomers or polymers, e.g., other amino acids or polyethylene glycol.