Joseph E Richards

US Patent:

6828294, Dec 7, 2004

Filed:

Aug 6, 2002

Appl. No.:

10/213027

Inventors:

Kenneth E. Kellar - Flemington NJ
Joseph C. Richards - West Windsor NJ
Crystal A. Nesbitt - Bridgewater NJ

Assignee:

FMC Corporation - Philadelphia PA

International Classification:

C11D 348

US Classification:

510382, 510536

Abstract:

An aqueous composition suitable for use as a high-retention sanitizer, especially on irregular and/or non-horizontal surfaces and surfaces on which water does not readily spread, a method for sanitizing a surface using the composition, and kits comprising components of the composition. The composition contains an organic peracid, preferably peracetic acid, or other antimicrobial agent, and a retention aid. The retention aid preferably is provided as a concentrate for admixture with the antimicrobial agent at point of use and comprises a mixture of a non-ionic surfactant, an ionic surfactant, and optionally a water-soluble magnesium ion source; or a mixture of a biopolymer thickening agent and at least one surfactant, and optionally a water-soluble magnesium ion source. In either retention aid, the magnesium ion source stabilizes foams formed from the retention aids in hard water and maintains retention aidconcentrates in a liquid state at room temperature if one of the surfactants is sodium lauryl sulfate, or magnesium lauryl sulfate or mixture thereof. The composition is preferably applied as a foam to the surface of the object to be sanitized.

US Patent:

8029693, Oct 4, 2011

Filed:

Jan 30, 2009

Appl. No.:

12/362873

Inventors:

Emmanuel A. Dada - Bensalem PA, US
Joseph C. Richards - West Windsor NJ, US

Assignee:

FMC Corporation - Philadelphia PA

International Classification:

C07F 5/02

US Classification:

25218212, 562 6

Abstract:

A method for the rapid dilution of an aqueous peracid solution, particularly, peracetic acid, in which a concentrated peracid solution is diluted with an aqueous diluent to produce a more dilute peracid solution in which the solution components are already at equilibrium immediately after dilution. The peracid in a preferred embodiment of this method is peracetic acid, for which the aqueous diluent is acetic acid and water, or hydrogen peroxide and water, or acetic acid, hydrogen peroxide and water, whose relative amounts are selected to produce a diluted aqueous peracid acid solution whose peracetic acid, hydrogen peroxide and acetic acid components are in equilibrium immediately after dilution.

US Patent:

20040171507, Sep 2, 2004

Filed:

Mar 11, 2004

Appl. No.:

10/798491

Inventors:

Kenneth Kellar - Flemington NJ, US
Joseph Richards - West Windsor NJ, US
Crystal Nesbitt - Bridgewater NJ, US

International Classification:

C11D003/00

US Classification:

510/367000

Abstract:

An aqueous composition suitable for use as a high-retention sanitizer, especially on irregular and/or non-horizontal surfaces and surfaces on which water does not readily spread, a method for sanitizing a surface using the composition, and kits comprising components of the composition. The composition contains an organic peracid, preferably peracetic acid, or other antimicrobial agent, and a retention aid. The retention aid preferably is provided as a concentrate for admixture with the antimicrobial agent at point of use and comprises a mixture of a non-ionic surfactant, an ionic surfactant, and optionally a water-soluble magnesium ion source; or a mixture of a biopolymer thickening agent and at least one surfactant, and optionally a water-soluble magnesium ion source. In either retention aid, the magnesium ion source stabilizes foams formed from the retention aids in hard water and maintains retention aidconcentrates in a liquid state at room temperature if one of the surfactants is sodium lauryl sulfate, or magnesium lauryl sulfate or mixture thereof. The composition is preferably applied as a foam to the surface of the object to be sanitized.

US Patent:

49700197, Nov 13, 1990

Filed:

Oct 27, 1988

Appl. No.:

7/263314

Inventors:

John Crosby - Lawrenceville NJ
Joseph C. Richards - Robbinsville NJ

Assignee:

FMC Corporation - Philadelphia PA

International Classification:

C01B 1504
C01B 15043
C01B 1510
C01B 3124

US Classification:

25218627

Abstract:

A manufacturing process and composition is claimed for a composition of matter comprising sodium carbonate, sodium carbonate perhydrate, a fluorescent whitening agent and a diphosphonic acid. The process comprises incorporating the fluorescent whitening agent and diphosphonic acid into aqueous hydrogen peroxide, uniformly applying the hydrogen peroxide solution to particulate sodium carbonate to form a reaction mixture, urging water vapor from the surface of the reaction mixture and maintaining the temperature of the reaction mixture between about 35. degree. C. and 80. degree. C.

US Patent:

55977910, Jan 28, 1997

Filed:

Oct 13, 1994

Appl. No.:

8/322635

Inventors:

Joseph C. Richards - Cranbury NJ
William A. Hills - Lawrenceville NJ
William C. Snow - Rockland ME

Assignee:

FMC Corporation - Philadelphia PA

International Classification:

C11D 322
C11D 339
C11D 3395
C11D 738

US Classification:

510372

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.

US Patent:

47477288, May 31, 1988

Filed:

Aug 25, 1986

Appl. No.:

6/900048

Inventors:

Robert D. Norris - East Windsor NJ
Richard A. Brown - Lawrenceville NJ
Joseph C. Richards - Robbinsville NJ

Assignee:

International Technology Corporation - Torrence CA

International Classification:

E02D 312

US Classification:

405263

Abstract:

The present invention is a method for distributing a colloid-free, aqueous solution containing a peroxygen compound in a particulate matter containing clay without causing the clay to swell. It has been found that hydrogen peroxide alone causes swelling of clays. It is well-known that monovalent ions cause clays to disperse and swell. It is unexpected to find that perborate and persulfate anions do not cause clays to swell, even in the presence of sodium ions. The process is useful for enhancing the biodegradation of contaminants in clayey soils or for winning mineral values from clayey ore deposits.

US Patent:

45941700, Jun 10, 1986

Filed:

Jun 25, 1984

Appl. No.:

6/624423

Inventors:

Richard A. Brown - Trenton NJ
Robert D. Norris - Cranbury NJ
Joseph C. Richards - Robbinsville NJ

Assignee:

FMC Corporation - Philadelphia PA

International Classification:

C09K 700
C09K 704

US Classification:

252 855R

Abstract:

The invention provides a method to liquify a heavy brine completion fluid containing chlorides. The combination of a persulfate and hydrogen peroxide was found to be more effective than either compound alone, or than a peroxygen plus an activator.