A process for the dehydrogenation of a paraffinic hydrocarbon compound, such as an alkane or alkylaromatic hydrocarbon compound to produce an unsaturated hydrocarbon compound, such as an olefin or vinyl aromatic compound or mixture thereof, in which a dehydrogenation catalyst contacts gaseous reactant hydrocarbons in a reactor at dehydrogenation conditions.
ABSTRACT OF THE DISCLOSURE A resin/aluminate composite which has been substantially loaded with Li+ values by being contacted with a contaminated, Li+-containing aqueous solution, is pre-washed with a substantially pure, concentrated NaCl brine to remove the contaminants without removing the Li+ values, then is washed with water to leach out much, but not all, of the Li+ values. The resin/alumi- nate composite comprises a macroporous anion-exchange resin having crystalline LiX?2Al(OH)3 dispersed therein, where X is halide.
ABSTRACT OF THE DISCLOSURE An improved process is described for separating carbon dioxide from other gases by means of a dry, asymmetric cellulose ester membrane. It has been found that by conducting the separation at a temperature no greater than 10°C., the degree of separation effected is significantly improved. This process is particularly valuable for the separation of carbon dioxide from natural gas streams.
B01D 53/22 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
ABSTRACT OF THE DISCLOSURE This invention is directed to a process for making ordered ester/carbonate copolymers characterized by comprising the steps of (1) contacting in an organic liquid medium a dihydric organic compound such as bisphenol-A with a carbonate precursor such as phosgene and a diacid halide such as terephthaloyl chloride under conditions such that the carbonate moieties in the resultant intermediate oligomer are formed simultane- ously with or before the formation of ester moieties and (2) contacting this oligomer with additional carbo- nate precursor under conditions sufficient to form the desired ordered ester/carbonate copolymer.
ABSTRACT OF THE DISCLOSURE Ring-fluorinated pyridine compounds are con- tacted with a chlorinating agent, preferably in the presence of a catalyst, under favorable conditions to yield pyridine compounds having a chlorine substituted in the ring-fluorine position(s).
ABSTRACT OF THE DISCLOSURE Less damage to soybeans occurs when the combination of bentazon [3-(1-methylethyl)-1H-2,1,3- -benzothiadiazinone-4(3H)-one-2,2-dioxide] and a 3-substituted-pyridyloxy(or thio)phenoxy alkanoate herbicide is applied thereto, in comparison to the combination of bentazon and a 3-unsubstituted pyridyloxyphenoxy alkanoate herbicide. -17-
A01N 43/88 - Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms, as ring hetero atoms six-membered rings with three ring hetero atoms
A01N 43/40 - Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
7.
METHOD FOR RECOVERING SYNTHETIC RESINOUS LATEX SOLIDS
Abstract of the Disclosure Latex is shear coagulated to form a paste, the paste heated and sheared to form a desired crumb; the crumb is mechanically dewatered and ground to a desired particle size. Relatively low energy consumption is a feature of the process.
ABSTRACT OF THE DISCLOSURE (Trifluoromethyl)pyridine compounds are prepared by contacting (trichloromethyl)pyridine com- pounds with hydrogen fluoride in the presence of a catalytic amount of a catalyst selected from the group consisting of FeCl2, FeF2 and mixtures thereof under liquid phase conditions. The (trifluoromethyl)pyridine compounds are useful as intermediates for the preparation of agricultural chemicals.
ABSTRACT OF THE DISCLOSURE This invention is directed to a process for the continuous polymerization in a reactor having a narrow cross-section of a water-miscible monomer in an aqueous phase containing at least 20 weight percent monomer. The monomer is polymerized in the presence of an organic liquid employed as a lubricant in a reactor having surfaces which are wetted by the organic liquid but are not wetted by the aqueous phase, the water- soluble polymer so formed being maintained separate from the internal surfaces of the reactor by the organic liquid. Polymers produced by this process are employed, for example, as additives in the manufacture of paper products, agents for the treatment of sewage and industrial waste waters, thickeners and dispersing agents.
ABSTRACT OF THE DISCLOSURE The present invention concerns curable compositions containing epoxy resins and salicyloyl hydrocarbyl amines, such as N,N'-disalicyloyl- -1,2-propylenediamine, and cured compositions thereof. The cured resins have an improvement in one or more properties such as color, tensile strength and flexural strength or improved pot life when compared to amine curing agents such as methylene dianiline.
ABSTRACT OF THE DISCLOSURE Certain novel pyridinyloxyphenoxy alkanoic acids, pyridinylthiophenoxy alkanoic acids, derivatives thereof and related compounds exhibit surprising preemergent and postemergent activity in the control of grassy weeds. They are prepared from novel pyridine intermediates having the general formula:- , and X is CF3, Cl or Br and its alkali metal salts.
ABSTRACT OF THE DISCLOSURE Low density compositions containing colloidal- -size particulates of an ELM absorber such as Fe3O4 and a particulate of an ELM attenuator such as carbonyl iron dispersed in a dielectric matrix such as a styrene/butyl acrylate copolymer provide improved absorption of electromagnetic radiations.
ABSTRACT OF THE DISCLOSURE This invention is directed to a process of encapsulating aqueous liquid wastes in liquid thermo- settable resins of the group consisting of vinyl ester resins, unsaturated polyester resins, and mixtures thereof, wherein the waste is emulsified in the resin. The invention is characterized by incorporating in the waste-resin emulsion a water-soluble salt of carboxy- methyl cellulose in an amount sufficient to increase the amount of waste emulsified in the resins.
ABSTRACT OF THE DISCLOSURE This invention is directed to a process of encapsulating aqueous liquid wastes in liquid thermo- settable resins of the group consisting of vinyl ester resins, unsaturated polyester resins, and mixtures thereof, wherein the waste is emulsified in the resin. The invention is characterized by incorporating in the waste-resin emulsion both a water-soluble polymeric substance containing a carbon chain having a plurality of -COOH groups or derivatives thereof, and a water soluble salt of carboxymethyl cellulose.
ABSTRACT OF THE DISCLOSURE (Trichloromethyl)pyridine compounds are reacted in the liquid phase with HF in the presence of a metal halide catalyst at superatmospheric pressures to form (trifluoromethyl)pyridine compounds in a high yield.
ABSTRACT OF THE DISCLOSURE 2-Fluoro-pyridine compounds are contacted with a chlorinating agent at superatmospheric pressures to yield 2-chloro-pyridine compounds.
ABSTRACT OF THE INVENTION This invention is directed to a process for encapsulating low level radioactive liquid water- insoluble organic wastes into a solid form suitable for burial. The process is characterized by contacting one part by weight of said waste with less than one part by weight of a particulate, crosslinked, organic liquid- -swellable, organic liquid-insoluble polymer to provide discrete, noncoalescent, gelled particles of said polymer and said waste; dispersing from 0.1 to 3 parts by weight of said gelled particles essentially uniformly in one part by weight of a curable liquid resin selected from the group consisting of unsaturated polyester resins, vinyl ester resins, or mixtures thereof and curing said liquid resin to a solid with said gelled particles encased therein. 27,584A-F
Abstract A method of converting saturated aliphatic chlori- nated hydrocarbons to carbon dioxide and hydrogen chlo- ride which comprises contacting a preheated mixture of the hydrocarbon, water, and, optionally, oxygen with a molecular sieve catalyst at temperatures of from 180°C to 400°C. Simple chlorinated hydrocarbons can thus be completely converted to HCl and CO2 at low temperatures without the production of undesired by-products.
ABSTRACT OF THE DISCLOSURE This invention is directed to water-in-oil emulsions of water-soluble polymers and to a process for making such emulsions. The emulsion comprises (1) a discontinuous aqueous phase containing a water- -soluble polymer which aqueous phase is dispersed as colloidal size particles or droplets in (2) a continuous oil phase wherein the emulsion contains an emulsion stabilizing amount of a water-soluble salt and an emulsifying amount of a water-in-oil emulsifier, said salt added prior to polymerization to form the water- -soluble cationic polymer. The water-in-oil emulsions are characterized in that the water-soluble polymer is a cationic polymer and the water-soluble salt is a salt of a monovalent anion. The process for preparing the water-in-oil emulsions comprises (1) forming a stable water-in-oil emulsion (monomeric precursor) containing at least one water-soluble monomer in the aqueous phase which is dispersed in a continuous oil phase, said emulsion containing a stabilizing amount of a water-soluble salt and an emulsifying amount of a water-in-oil emulsifier, and (2) subjecting the monomeric precursor to conditions sufficient to polymerize the monomer. The method is characterized in that at least one water-soluble monomer is a cationic monomer and the water-soluble salt is a salt of a monovalent anion. The water-in-oil emulsions of this invention are employed to supply flocculant to many substrates including, for example, sewage, cellulosic fibers and fines for retention and freeness; metal or treatment plating wastes, and coal tailings.
Abstract of the Disclosure Mechanically stable styrene polymer foams having highly desirable physical properties are prepared employing as a blowing agent a mixture of lower alcohols with chlorofluoromethanes.
C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
21.
NORBORNYL MODIFIED POLYESTERAMIDES AND PROCESS FOR PREPARING SAME
ABSTRACT OF THE DISCLOSURE Polyesteramides modified by having at least one terminal norbornene radical have improved physical and chemical properties, such as enhanced corrosion resistance, electrical properties, and heat stability. The modified polyesteramides are prepared by a process of reacting a dicarboxylic acid, a diamine, a polyol and a norbornene compound. 29,421-F
-24- ABSTRACT OF THE DISCLOSURE Polymers and the process for producing polymers by the polymerization of at least three monomers wherein at least one monomer is selected from the group consisting of tetrafluoroethylene, trifluoromonochloroethylene, trifluoroethylene, vinylidene fluoride, 1,1-difluoro-2,2-dichloroethylene, 1,1-difluoro-2-chloroethylene, hexafluoropropylene, 1,1,1,3,3-pentafluoropropylene, octafluoroisobutylene ethylene, vinylchloride, trifluoronitrosomethane, per- fluoronitrosoethane and alkyl vinyl ether, and at least one other monomer is selected from the group represented by the general formula where Y is an acid group or a group easily con- vertible to an acid group; a is zero or an integer greater than zero; b is zero or an integer greater than zero; c is 0 or 1; a + b + c = 0; X is Cl, Br, or mixtures thereof when n > 1; n is zero or an integer greater than zero; and
ABSTRACT OF THE DISCLOSURE 2-t-Butyl-5-chloropyrimidine is made by the direct chlorination of 2-t-butylpyrimidine with ele- mental chlorine in an acetic or propionic acid solution at temperatures of 40° to 90°C in the presence of a buffer.
ABSTRACT OF THE DISCLOSURE This invention is directed to a process for hydrolyzing an epoxy resin by reacting said epoxy resin with water in the presence of a catalyst. This inven- tion is characterized by conducting the reaction in the absence of a polyhydric phenol and substantial quanti- ties of an organic solvent and in the presence of a catalytic quantity of a catalyst comprising (1) at least one dicarboxylic acid and (2) at least one phos- phonium compound wherein the molar ratio of (1) to (2) is from 1:1 to 20:1. Hydrolyzed epoxy resins produced by the process of this invention are useful in coating compositions.
ABSTRACT OF THE DISCLOSURE Solid compositions are prepared by-reacting (A) one or more materials containing an average of more than one 1,2-epoxy groups with (B) one or more materials containing an average of more than one phenolic hydroxy groups wherein at least one of (A) or (B) contains with respect to (B) or has been prepared from with respect to (A) a reaction product of (1) at least one aromatic compound having at least one aromatic ring, at least one aromatic hydroxyl group and which aromatic ring contains at least one ortho or para position which is capable of being alkylated and (2) at least one aliphatic or cycloaliphatic C4-C6 unsaturated hydro- carbon or a dimer, codimer, oligomer of cooligomer thereof.
C08G 59/00 - Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by reaction of epoxy polycondensates with monofunctional low-molecular-weight compounds; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
C08L 63/00 - Compositions of epoxy resins; Compositions of derivatives of epoxy resins
patents
