Air Products and Chemicals, Inc.

Richard Van Carr

Kristen Elaine Minnich

Kevin Rodney Lassila

Mark L Listemann

Richard Paul Underwood

Ann C Savoca

Thomas A Johnson

Bernard A Toseland

James Stephen Emerick

Thomas A Albanese

Jeremiah P Casey

Ning Chen

Robert G Petrella

John Edward Sawicki

George J Wasilczyk

Steven M Galaton

Thomas Albert Johnson

John Anthony Marsella

Lisa Ann Mercando

David S Ross

William Joseph Mazzafro

Carl J Martin

Andrew James Casale

Stephen Ian Clarke

Craig R Williams

Barry J Koehler

Amy L Wressell

Mark Shedrick Simpson

Mark Shedric Simpson

Roland Gonzalez

Michael C Pohl

Thomas Archie Albanese

Steven Marc Galaton

The use of 3-[3-(dimethylamino)propyl]-propionamide (Formula I) and 3,3'-{[3-(dimethylamino)propyl]imino}bis-propanamide (Formula II) as catalysts in the production of polyurethanes. ##STR1##

Amido functional amine catalysts for the production of polyurethanes

This invention provides water-based compositions, particularly coating, ink, fountain solution, adhesive, agricultural and photoresist developing/electronics cleaning compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain alkylated aminoalkylpiperazine compounds of the structure ##STR1## where one of R.sup.1 and R.sup.2 is a C5-C14 alkyl or cycloalkyl group and the other is H, or both or R.sup.1 and R.sup.2 are C5 to C8 alkyl groups, and n is 2 or 3.

Alkylated aminoalkylpiperazine surfactants and their use in photoresist

This invention provides water-based compositions, particularly coating, ink, and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain alkylated diamine compounds of the structure ##STR1## where R and R' are independently C5 to C8 alkyl, and G is a C2-C6 linear or cyclic alkylene group which may contain C1-C4 alkyl substituents.

Surface tension reduction with N,N'-dialkylalkylenediamines

N,N'-dialkylurea and an .alpha.,.beta.-unsaturated nitrile are reacted to form a cyclic N,N'-dialkylurea containing an imine group on a ring carbon. This compound is useful as an intermediate in the formation of N,N'-dialkylpropyleneureas by hydrogenation followed by hydrogenolysis to remove the imine group. Using N,N'-dimethylurea and acrylonitrile as the starting materials one can arrive at N,N'-dimethylpropyleneurea which is a compound useful as an organic solvent and known by its acronym, DMPU.

Process for the production of cyclic N,N'-dialkylureas

This invention provides water-based compositions, particularly coating, ink, and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain alkylated aminoether compounds of the structure

Alkylated aminoether surfactants

A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of a compound having the following formula I: ##STR1## where R.sup.1 is hydrogen or a C1-C4 linear or branched alkyl, hydroxyalkyl or aminoalkyl group;

Aminopropylbis(aminoethyl) ether compositions for the production of

3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide is a new compound which is useful as a catalyst in the production of polyurethane foams.

3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide

This invention provides water-based compositions, particularly coating, ink, and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain alkylated polyamine compounds of the structures I and II

Surface tension reduction with alkylated higher polyamines

This invention provides water-based compositions, particularly coating, ink, and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain alkylated polyamine compounds of the structure ##STR1## where m is 2-6, n is 2 or 3, R and R' are C5 to C8 alkyl groups.

Surface tension reduction with alkylated polyamines

This invention relates to an improved process for the production of dinitrotoluene wherein one is able to effectively employ a feed sulfuric acid, which is referred to as 'weak acid' as the feed sulfuric acid for the nitration facility. The weak acid concentration, as feed, ranges from 86-91%, preferably 87-89% sulfuric acid by weight, to meet the total sulfuric acid requirements for the facility. This is accomplished by utilizing cocurrent processing in a mononitration zone and countercurrent nitration with respect to sulfuric acid in the dinitration zone.

Weak acid process for producing dinitrotoluene

Aminopropylbis (aminoethyl) ether compositions for the production of

A process for removing nitrocresols in a crude aqueous alkaline dinitrotoluene wash stream derived by nitration of toluene using a mixed acid technique followed by treatment with aqueous alkaline material in which the crude aqueous alkaline dinitrotoluene wash stream is mixed with a dilute oxidizing acid such as nitric acid, heated to 130.degree. to 180.degree. C. for a period of time required to reduce the nitrocresols to a level at which it does not precipitate from the mixed acidic wash stream at temperatures above about 60.degree. C., and removing the remaining nitrocresols by conventional methods such as adsorption or activated sludge biotreatment.

Dilute acid oxidation of dinitrotoluene alkaline wash water

A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition comprising a compound having the following formula I: ##STR1## where R.sup.1 is hydrogen or a linear or branched C1-C4 alkyl or a C1-C4 hydroxyalkyl group;

Hydroxyalkylbis(aminoethyl) ether compositions for the production of

This invention relates to an improved process for storing and transporting toluenediamine, particularly for long term storage or storage in large containers, e.g., shipboard containers. The improvement in the process resides in substantially reducing the melting or freezing point of anhydrous toluenediamine obtained by the fractional distillation of a reaction product generated by the hydrogenation of dinitrotoluene. Such melting point reduction is accomplished by maintaining a water concentration in the toluenediamine in an amount of from 5 to 15% by weight under molten conditions for storage and transport. Preferably the level of water maintained in the toluenediamine is from about 7 to 10% by weight.

Process for storage and transport of toluenediamine

A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, cell stabilizer and a catalyst composition consisting essentially of a pyrrolizidine of the formula: ##STR1## where R.sub.1 and R.sub.2 independently are --H, --OH, ##STR2## or --NR.sub.4 R.sub.5, R.sub.3 is hydrogen, a C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, or C.sub.7 -C.sub.11 arylalkyl group, and

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Allentown, PA, United States of America

Richard Van Carr