Church Dwight & Co., Inc.

Other

Alfredo Vinci

M Stephen Lajoie

Anthony E Winston

Francis R Cala

Kenneth R Cummings

Steven E Dunn

Thomas F Sweeney

Steven A Bolkan

Robert C Jorgensen

Ronald L Forrest

Gale A Byrnes

Patricia L Phillips

Antony E Winston

Keith A Jones

Lisa M Kurschner

Frank Cala

Paul E DeCastro

MStephen Lajoie

An aqueous metal cleaning composition is provided which comprises an alkalinity providing agent such as alkali metal carbonate and/or bicarbonate salts and a low foaming surfactant. The aqueous cleaning solution has specific foam height and foam collapse characteristics, and provides for substantially complete phase separation of a contaminant phase from the aqueous cleaning composition such that there is substantially no aqueous phase drag out into the contaminant phase; and the contaminant phase can be removed easily, and the aqueous cleaning solution can be recovered and reused.

General purpose aqueous cleaner

An alkaline, aqueous metal-cleaning composition capable of effectively removing industrial-type soil contaminants from a metal surface at temperatures as low as ambient temperature and in the absence of substantial agitation contains (A) an active-ingredient portion containing (1) an alkalinity-providing component, and (2) a surfactant mixture containing: (a) at least one first non-ionic, ethoxylated linear primary alcohol surfactant having a hydrophobic carbon chain length of from 9 to 11 carbon atoms and being ethoxylated with (i) an average of 2.5 moles of ethylene oxide or (ii) an average of 5.0 moles of ethylene oxide; and (b) at least one second non-ionic, ethoxylated linear primary alcohol surfactant having a hydrophobic carbon chain length of from 9 to 11 carbon atoms and being ethoxylated with an average of 6.0 moles of ethylene oxide; and (B) an aqueous portion.

Aqueous composition for low-temperature metal-cleaning and method of use

An alkaline, aqueous cleaning solution which is capable of removing at least a substantial portion of uncured adhesive residues, e.g., epoxy-based adhesives, from a substrate, preferably a metal stencil substrate, contains water, an alkalinity-providing agent and a synergistic combination of surfactants, specifically an N-alkylpyrrolidone surfactant, which is preferably N-octyl-2-pyrrolidone, and an aminocarboxylic acid surfactant, which is preferably N-coco-beta-aminopropionic acid. At an active-concentration ratio of the N-alkyl-2-pyrrolidone surfactant to the aminocarboxylic acid surfactant of from about 1:1 to about 3.5:1 and a total active concentration of at least 0.30% by weight of the aqueous cleaning solution, the N-alkyl-2-pyrrolidone and aminocarboxylic acid surfactants synergistically improve the ability of the solution to remove uncured adhesive residues from the substrate, even at relatively low wash temperatures, e.g., from about 70.degree. F. to less than about 135.degree. F.

Aqueous cleaning solution and method for removing uncured adhesive

In one embodiment this invention provides a process for preparing a deodorized fatty acid salt feed supplement. Primary amine reagent is added to a process medium in which C.sub.14 -C.sub.22 fatty acid with a content of malodorous carbonyl compound is converted into a deodorized C.sub.14 -C.sub.22 fatty acid alkaline earth metal salt product.

Deodorized fatty acid salt feed supplement product

A method for removing rosin soldering flux with aqueous cleaning compositions. The aqueous cleaning compositions can be employed for household use or for cleaning electronic circuit assemblies. The aqueous cleaning compositions contain an alkaline salt, an alkali metal silicate to boost detersive action or to provide corrosion protection to the substrates which are cleaned and an anionic polymer of a high molecular weight polyacrylic acid which stabilizes the alkali metal silicate to prevent precipitation of the silicate from solution.

Method for removing rosin soldering flux from a printed wiring board

The present invention relates to environmentally safe aqueous cleaning compositions comprising alkaline salts, organic adjuvants and a hydrotrope comprised of alkali metal salts of carboxylic acids having a chain length of 7-13 carbon atoms so as to maintain the organic adjuvant in solution.

Low foaming effective hydrotrope

A process for preparing a fatty acid calcium salt ruminant feed supplement product which contains an incorporated methionine hydroxy analog calcium salt additive. The dietary product can function as a rumen bypass feed supplement, and permit a beneficial increase in the nutrient fat content of the feed.

Ruminant feed supplement product

The present invention is directed to aqueous cleaning compositions such as for household use or for cleaning electronic circuit assemblies comprising alkaline salt, an alkali metal silicate to boost detersive action or to provide corrosion protection to the substrates which are cleaned and an anionic polymer comprising a high molecular weight polyacrylic acid which stabilizes the alkali metal silicate to prevent precipitation of the silicate from solution.

Stabilization of silicate solutions

The present invention is directed to aqueous cleaning concentrates such as for cleaning electronic circuit assemblies comprising 15-30 wt. % of a composition containing alkaline salt, an alkali metal silicate to boost detersive action or to provide corrosion protection to the substrates which are cleaned, an anionic polymer comprising a high molecular weight polyacrylic acid which stabilizes the alkali metal silicate to prevent precipitation of the silicate from solution, surfactants, and a hydrotrope to maintain the surfactants in solution and the balance water.

Aqueous cleaning concentrates

The present invention provides a method for controlling fungal disease in cultivated crops. The aqueous fungicide formulation which is applied to pre-harvest and post-harvest crops contains ingredients which are biocompatible for purposes of agricultural and horticultural applications. Illustrative of a formulation which is harmless to animals and humans is an aqueous solution having a content of potassium bicarbonate, potassium carbonate, nonionic surfactant and xanthan gum. The combination of nonionic surfactant and xanthan gum functions as an effective spreader-sticker medium for forming a film-like coating on plant surfaces. The adherent coating exhibits both immediate and long duration fungicidal activities.

Method of controlling fungal disease in cultivated plants

The present invention is directed to aqueous cleaning compositions such as for household use or for cleaning electronic circuit assemblies comprising alkaline salt, an alkali metal silicate to boost detersive action or to provide corrosion protection to the substrates which are cleaned and an anionic polymer which stabilizes the alkali metal silicate to prevent precipitation of the silicate from solution.

The present invention relates to environmentally safe aqueous cleaning compositions for cleaning electronic circuit assemblies, such as printed circuit or printed wiring boards, during their fabrication. Alkali metal carbonate and bicarbonate salts are utilized with an alkali metal silicate to achieve a variety of objectives, among which are the removal of solder flux, oils, waxes, and greasy substances, adhesives and other residues as well as provide anti-corrosion protection and metal brightening.

Aqueous electronic circuit assembly cleaner and method

The present invention provides a process for preparing a C.sub.14 -C.sub.22 fatty acid alkaline earth metal salt product which is essentially free of C.sub.14 -C.sub.22 fatty acid or C.sub.14 -C.sub.22 fatty acid glyceride. The glyceride content of C.sub.14 -C.sub.22 fatty acid starting material is hydrolyzed with a water-soluble basic compound such as sodium carbonate in the first step of the process. The C.sub.14 -C.sub.22 fatty acid salt aqueous dispersion formed in the first step is converted to an alkaline earth metal salt in a subsequent process step. A biologically active constituent such as methionine hydroxy analog can be incorporated as an additional ingredient during the processing.

Process for production of high purity fatty acid salt products

The present inventions provides a process for preparing a C.sub.14 -C.sub.22 fatty acid alkaline earth metal salt product which is essentially free of C.sub.14 -C.sub.22 fatty acid or C.sub.14 -C.sub.22 fatty acid glyceride. The glyceride content of C.sub.14 -C.sub.22 fatty acid starting material is hydrolyzed with a water-soluble basic compound such as sodium carbonate in the first step of the process. The C.sub.14 -C.sub.22 fatty acid salt aqueous dispersion formed in the first step is converted to an alkaline earth metal salt in a subsequent process step. A biologically active constituent such as methionine hydroxy analog can be incorporated as an additional ingredient during the processing.

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Dayton, NJ, United States of America

Alfredo Vinci