Air Products and Chemicals, Inc.

Other

Michael E Ford

Thomas A Johnson

Dale D Dixon

Kevin Rodney Lassila

John N Armor

Gerald J Mantell

Gamini Ananda Vedage

William F Burgoyne, Jr

Jeremiah P Casey

Michael Langsam

Andrew Wilson Wang

Joseph Richard Krock

Nancy Mary Martin

Ge Grace Zhang

Michel Deeba

Hong-Xin Li

Richard Henry Bott

Randall J Daughenbaugh

Ingrid Kristine Meier

Richard Paul Underwood

Kenneth Merle Kem

William E Lenney

William Eamon Carroll

Susan M Clift

John William Mitchell

Richard Joseph Goddard

Mark David Conner

Michael Gerard Turcotte

Christine Peck Kretz

Cawas A Cooper

William F Burogyne, Jr

Compounds according to formula (I) wherein Z is S, SO, or SO, may be prepared by a process that includes charging to a reactor hydrogen sulfide and an alkyl glycidyl ether according to formula (III), in the presence of a base.  The compounds may also be prepared by contacting an alkoxychlorohydrin according to formula (II) with a sulfide source. 

Bis(3-alkoxypropan-2-ol) sulfides, sulfoxides, and sulfones: new preparative methods

Certain substituted amines, alkylenediamines or polyamines, and derivatives of these, are suitable for use in preventing, inhibiting, or otherwise modifying crystalline gas hydrate formation. These inhibitors include compounds from any of the following groups.  The substituents R-Rmay be hydrocarbyl groups or, in some cases, polyhydroxyalkyl groups or (CH)&#x2014;COOin which p is either 1 or 2.

Amine-based gas hydrate inhibitors

Compounds according to formula (I) wherein Z is S, SO, or SO, may be prepared by a process that includes charging to a reactor hydrogen sulfide and an alkyl glycidyl ether according to formula (III), in the presence of a base. The compounds may also be prepared by contacting an alkoxychlorohydrin according to formula (II) with a sulfide source 

A method for converting amino ether alcohols to amino ether amines by amination in the vapor phase with a catalyst comprising copper and zinc. The catalyst may also comprise an alkali, alkaline earth, or lanthanide element as a promoter.

N-methylated amines from selective vapor phase amination of amino ether alcohols

The present invention provides compounds useful as surfactants having formula (1), including isomers thereof:wherein a and b are integers independently selected from about 3 to about 6; x is an integer from about 1 to about 12; (m+n) is from about 1 to about 4; the Rgroups are independently selected from the group consisting of linear, cyclic, and branched alkyl, alkenyl, aryl, and alkylaryl groups having from about Cto about Catoms; and when (m+n) is equal to or greater than 2, each Rmay be independently Ror R, wherein Rand Rare independently selected from the group consisting of linear, cyclic, and branched alkyl, alkenyl, aryl, and alkylaryl groups having from about Cto about Catoms. The invention also provides a method for reducing surface tension in a waterborne composition or an industrial process by the incorporation of a surfactant having formula (1) and an aqueous composition comprising a surfactant having formula (1). The invention further provides a product prepared by the reaction of a N,N'-bis(polyhydroxyalkyl)alkylenediamine with a glycidyl ether.

Gemini glycidyl ether adducts of polyhydroxyalkyl alkylenediamines

This invention pertains to an improvement in a process for the formation of secondary or tertiary amines by the catalytic reductive amination of a nitrile with a primary amine. The catalyst employed in the improved reductive amination process is one that has been promoted with an acidic promoter preferably a solid phase acidic promoter.

Selective reductive amination of nitriles

This invention pertains to an improvement in a process for the formation of secondary or tertiary amines by the catalytic reductive amination of a nitrile with a primary or secondary amine and, particularly to the reductive amination of C,nitrites with a secondary amine. The catalyst employed in the improved reductive amination process is one which has been promoted with a lithium salt or base, e.g., lithium chloride or lithium hydroxide.

This invention pertains to aqueous emulsions containing water insoluble, vinyl polymer particles containing polymerized N-vinyl formamide (NVF) units converted to water insoluble vinyl acetate polymers containing cationic, amine functional units. These latex dispersions are prepared by the emulsion polymerization of an ethylenically unsaturated monomer and N-vinyl formamide. Preferably, vinyl acetate, optionally with other ethylenically unsaturated monomers, are used to form the copolymer. The copolymer then is selectively hydrolyzed via acid hydrolysis of the N-vinyl formamide group to form water insoluble polymer particles.

Aqueous emulsion materials containing copolymerized vinyl amide monomers

Salt-free poly(vinylamine) and vinylamine copolymers are formed by heating N-vinylformamide or N-vinylformamide copolymers to a temperature from about 50.degree. to 225.degree. C. in an aqueous medium in the presence of a catalyst comprising a transition metal which is a member of either the first transition series or of Group VIII.

One step production of low salt vinylamine polymers

This invention relates to o-tolidines which have a tert-butyl substituent ortho to an amine group. These compositions are represented by the formula: ##STR1## where R.sub.1 =i-propyl, or t-butyl, and where R.sub.2 =hydrogen, i-propyl, or t-butyl. The compositions are useful in the preparation of polyepoxide resins as well as polyurethanes, polyamides and polyimides.

Ortho-alkylated tolidines

Salt-free vinylamine copolymers are formed by heating the corresponding N-vinylformamide copolymer to a temperature from about 75.degree. to 225.degree. C. in non-aqueous media in the presence of a catalyst comprising a Group VIII metal.

Decarbonylation of N-vinylformamide copolymers

Amine functional polymers which are terpolymers made up of randomly linked units of amidine or amidinium formate, N-vinylformamide and either vinylamine or vinylammonium formate are prepared by aqueous hydrolysis of poly(N-vinylformamide) at a temperature in the range of 90.degree. to 175.degree. C., preferably in the presence of a minor amount of ammonia or volatile amine. Best conversions and good control of polymer structure are obtained at 140.degree. to 160.degree. C. with a small concentration of ammonia or alkylamine. Formation of poly(vinylammonium formate) containing no other salts or ionic coproducts is realized by degassing the hydrolyzate to remove ammonia or amine from the polymer solution. The poly(vinylammonium formate) affords distinct advantages in the production of salt-free polymers by catalytic decomposition of impurities. Poly(vinylamines) containing significant amounts of amidine functionality offer advantages in applications where increased basicity is required.

Poly(vinylammonium formate) and process for making amidine-containing

Poly(vinylammonium formate)

Amine functional polymers are purified to remove formate present by contact with a supported Group VIII metal hydrogen transfer catalyst under conditions favoring formate decomposition to carbon dioxide and hydrogen which are removed as gases. The preferred catalyst is palladium on carbon. Essentially salt-free poly(vinylamines) can be obtained by hydrolysis of polymers of N-vinylformamide in aqueous solution using ammonia or a volatile amine as a hydrolysis agent so that formate salts are the principal by-product of the hydrolysis which creates amine functionality in the polymer. Formate can then by removed by the catalytic decomposition described. Removal of carbon dioxide is enhanced by degassing the hydrolyzate prior to formate decomposition and by nitrogen purge of the polymer solution during the catalytic decomposition reaction.

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Trexlertown, PA, United States of America

Michael E Ford