Abstract: The invention provides an aqueous colloidal peroxygen composition comprising stable sols, gels and solids of C2 to C6 peroxycarboxylic acids with a polysaccharide gum, optionally with gum cross-linking agents such as boric acid, borate salts, urea and the like useful for delivering peracids in applications such as surface cleaners, detergent bleach, automatic dish washing formulations and the like. The compositions are particularly useful for sanitizing or bleaching at an acid or neutral pH compared with other chlorine or peroxygen bleach compounds.
Type:
Grant
Filed:
October 13, 1994
Date of Patent:
January 28, 1997
Assignee:
FMC Corporation
Inventors:
Joseph C. Richards, William A. Hills, William C. Snow
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.
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
Abstract: This disclosure relates to an aqueous peroxide composition with improved safety profile, the composition comprising a solid, substantially water-insoluble organic peroxy acid stably suspended in an aqueous medium, wherein the aqueous medium also comprises an effective amount of a safety booster selected from the group consisting of triethylene glycol, polyethylene glycol and mixtures thereof. The preferred organic peroxy acid is 1,12-diperoxydodeandioic acid. The aqueous peroxide composition is particularly useful in detergent, bleaching, cleaning and/or disinfecting formulations.
Abstract: A polyvinyl ether and paraffin wax blend is described which is useful as a coating for encapsulates which are stable in an alkaline environment and which exhibit a volume % compressibility of 20.degree. or less at 30.degree. C. The polyvinyl ether material has a formula [C.sub.x H.sub.2x O].sub.y.
Type:
Grant
Filed:
July 17, 1995
Date of Patent:
December 31, 1996
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
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:
August 31, 1994
Date of Patent:
December 17, 1996
Inventors:
Gregory S. Miracle, Alan D. Willey, Kevin L. Kott, Michael E. Burns
Abstract: An aqueous ammonia composition having low surface tension is disclosed, which comprises ammonia water and a fluoroalkylsulfonamide compound having the following general formula:R.sup.1 SO.sub.2 NR.sup.2 --X--H (I)wherein R.sup.1 represents a fluoroalkyl group, R.sup.2 represents a hydrogen atom or a lower alkyl group, X represents a grouping selected from CH.sub.2 COO and (CH.sub.2 CH.sub.2 O).sub.n, wherein n is a positive integer from 1 to 20. This aqueous ammonia composition may be mixed with an aqueous hydrogen peroxide solution and water so that it can be used for cleaning a semiconductor substrate. The cleaning solution has outstanding stability, and exhibits improved efficacy in removing microparticles of impurities and excellent surface-protecting effect on the semiconductor substrate that is useful in the manufacture of high density integrated circuit elements.
Type:
Grant
Filed:
June 7, 1995
Date of Patent:
December 3, 1996
Assignees:
Nissan Chemical Industries, Ltd., Kanto Kagaku Kabushiki Kaisha
Abstract: The concentration of Al on silicon surface is reduced to lose its influence on the growth rate of an oxide film during thermal oxidation when semiconductor surface treatment is carried out by a process for treating semiconductor surfaces which comprises a step of cleaning surfaces of semiconductors with a semiconductor surface treating agent comprising an inorganic or organic alkali, hydrogen peroxide and water as major components, and a step of rinsing the resulting surfaces with ultra-pure water, at least one of the semiconductor surface treating agent and the ultra-pure water containing as a complexing agent a compound having three or more ##STR1## groups in the molecule or a salt thereof.
Abstract: Automatic dishwashing detergent compositions, comprising particular quaternary-substituted bleach activators, are provided. More specifically, the invention relates to granular automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits through the selection of quaternary-substituted bleach activators having specific features, such as caprolactam or valerolactam leaving groups and/or the ability to form particular cationic aliphatic peracid structures in solution. Preferred automatic dishwashing compositions comprise amylase enzymes. Included are preferred activator compounds and methods for washing tableware in domestic automatic dishwashing appliances using the activators.
Type:
Grant
Filed:
August 31, 1994
Date of Patent:
November 26, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Lucille F. Taylor, Mark R. Sivik, Alan D. Willey, James C. T. Burckett-St. Laurent, Frederick A. Hartman
Abstract: A cleaning and sanitizing method for soiled solid surfaces, especially clean-in-place process facilities, is described which involves contacting the surfaces first with an aqueous ozone cleaning composition having a pH greater than 7, wherein the ozone is generated by electrical discharge, then quenching the excess ozone and simultaneously sanitizing the surfaces by contact with an aqueous composition containing hydrogen peroxide, a C.sub.1 -C.sub.10 peroxyaliphatic carboxylic acid or a mixture thereof.
Type:
Grant
Filed:
September 22, 1995
Date of Patent:
October 22, 1996
Assignee:
Ecolab Inc.
Inventors:
Robert D. Hei, Guange-jong J. Wei, Bruce R. Cords, Keith D. Lokkesmoe
Abstract: There are herein disclosed a rubber composition for cleaning a mold which comprises 100 parts by weight of a natural rubber and/or a synthetic rubber, 2 to 30 parts by weight of an amino-alcohol salt in terms of an amino-alcohol content, 5 to 50 parts by weight of a glycol, 30 to 90 parts by weight of an adsorbent and 0.5 to 10 parts by weight of an organic peroxide, and a method for cleaning the mold by the use of this rubber composition.Since the amino-alcohol is fixed as the salt, the generation of ammonia odor at the time of kneading or at room temperature can be prevented to improve a working environment, and the volatilization of the amino-alcohol can be inhibited, whereby a mold cleaning effect can be maintained even after the lapse of a long time.
Abstract: Novel bleach catalysts, a method for bleaching substrates using these catalysts and detergent compositions containing the catalysts are reported. The catalysts are quaternary imine salts. Substrates such as fabrics may be bleached in an aqueous solution containing these salts and a peroxygen compound.
Type:
Grant
Filed:
April 5, 1995
Date of Patent:
August 27, 1996
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
Abstract: A multi-component product for providing, on mixing of the components, a disinfectant composition. A first component of the product comprises an aqueous solution of a lower aliphatic peracid and a second component comprises an aqueous solution containing a corrosion inhibitor and either a hydrogen peroxide stabilizer, a peracid stabilizer, or both.
Abstract: Microbicidal compositions having activity over a broad pH range are provided. The compositions include a peracid and a nonionic surfactant according to the general chemical formula: R-(OCH.sub.2 CH.sub.2).sub.n -(OCH.sub.2 CH.sub.2 CH.sub.3).sub.p -OH, wherein R represents an alkyl group of at least 6 carbon atoms, and n and p each represent an integer. The compositions can additionally include a cationic surfactant.
Abstract: Mildly acidic multi-purpose liquid cleaning compositions which comprise a specific nonionic surfactant system are disclosed. The nonionic surfactant system comprises at least four different nonionic surfactants belonging to four different HLB classes. The compositions can be used for laundering, hard surface cleaning for bathrooms, kitchens or floors, as well as for cleaning carpets.