Class 564/1.5 - Adducts or inclusion compounds of urea per se or of of thiourea per se with organic compounds (e.g., urea-alkane inclusion compounds, etc.)

Subclass of Class 564 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein urea, per se, of thiourea, per se, forms
No. of patents: 19
Last issue date: 12/05/2006

Number	Title	Issue Date
7145046	Production of fluorine compounds Inorganic and organic compounds containing fluorine can be produced, for example, from corresponding chlorine-containing compounds by chlorine/fluorine exchange using fluorinating agents. Monocyclic or bicyclic compounds containing at least two nitrogen atoms, at le...	12/05/2006
7002041	Stabilized amide composition An amide composition containing an unsaturated amide, a sulfur-containing compound, and a weak acid salt. The composition can include an amide in crystalline form or the composition can be in form of aqueous solution. The composition can exhibit improved stability w...	02/21/2006
6774270	Method of removing hexafluoropropylene dimers A method of removing hexafluoropropylene dimers (“HFP dimers”), dimer hydrides and other oligomers from a fluid is described. The method comprises heating the fluid to isomerize the HFP dimers to the thermodynamic isomer, and contacting the fluid with a tertiary...	08/10/2004
6284921	Method for preparing a fertilizer An oligomethylene urea product usable as a fertilizer can be more efficiently prepared in several steps by: a) introducing at least urea and an aqueous solution of formaldehyde in the overall molar ratio of urea to formaldehyde of the step 1:1-2:1 into a ...	09/04/2001
6060522	Surfactant co-clathrates A solid, water-soluble complex comprising: a) a polysiloxane of the formula: ##STR1## wherein n is from 2 to 6; a is from 8 to 25; and b is from 0 to 25; and the oxyalkylene groups may be random or block mixtures; y is from 0 to 5; x is from 1 to 5; ...	05/09/2000
5847209	Process for recovery of solid and reusable urea from the urea adduction process A process for recovery of solid and reusable urea from the urea adduction process. Refinery streams are subjected to a step of urea adduction for removal of unwanted branched products, aromatics and sulphur. The adduct is purified, dried and then subjecte...	12/08/1998
5811290	Bioremediation method of hydrocarbon contaminated soils, water, and/or sludge using urea-surfactant clathrates A method and composition for enhancing the biodegradation of hydrocarbon contaminated soil, water, and/or sludge are disclosed. The composition comprises an adduct of urea with a non-ionic surfactant and a phosphorous source. The disclosed method provides...	09/22/1998
5705690	Urea-surfactant clathrates and their use in bioremediation of hydrocarbon contaminated soils and water One embodiment of the present invention provides compounds comprising an adduct of urea with a non-ionic surfactant. Another embodiment of the present invention, there is provided a composition suitable for enhancing the bioremediation of contaminated soi...	01/06/1998
5380892	Process for separating aliphatic straight-chain compounds having terminal functional groups from alpha-isomers thereof A process for separation of aliphatic straight-chain compounds having terminal functional groups from mixtures containing isomers thereof branched in the ଱-position by precipitating the aliphatic, straight-chain compounds as their clathrates....	01/10/1995
4259169	Process for the separation of n-paraffins from hydrocarbon oils A process for the separation of n-paraffins from hydrocarbon by means of solid urea wherein the formation of the adduct of n-paraffins with urea is carried out in a fluidized bed....	03/31/1981
4131621	Adducts of carbamoyl sulphoxides Novel adducts of a carbamoyl sulphoxide and urea having the formula ##STR1## and adducts of the said carbamoyl sulphoxide and an organic compound having the grouping ##STR2## wherein R is substituted or unsubstituted aryl, alkyl or alkenyl; R	12/26/1978
4070410	Method of isolating individual normal alkanes from petroleum stock A method of isolating individual normal alkanes from petroleum stock, wherein the petroleum stock is contacted with crystalline carbamide in the presence of an activator at a temperature which is the upper limit for a given individual normal alkane to be ...	01/24/1978
4048055	Process for regenerating aqueous urea solutions The useful process life of aqueous urea solutions used in mineral oil urea dewaxing processes may be significantly prolonged by contacting with an acidic ion exchange resin at least a portion of the urea solution recovered from n-paraffin-urea adduct deco...	09/13/1977
4008071	Adducts of carbamoyl sulphoxides Novel adducts of a carbamoyl sulphoxide and urea having the formula ##STR1## and adducts of the said carbamoyl sulphoxide and an organic compound having the grouping ##STR2## wherein R is substituted or unsubstituted aryl, alkyl or alkenyl; R	02/15/1977
3975180	Crystalline adducts of carbamoyl sulphoxides and urea in a 1:3 ratio Novel crystalline adducts of a carbamoyl sulphoxide and urea have the formula ##EQU1## wherein R is substituted or unsubstituted aryl, alkyl or alkenyl; R1 and R2, which may be the same or different, are H, substituted or u...	08/17/1976
3968058	Free flowing nonionic inclusion compounds Novel urea-ethoxamer inclusion compounds and a method for their production is disclosed. The new method includes mixing of the ethoxamer with a urea-organic solvent slurry and the subsequent addition of small amounts of silica substances before final curi...	07/06/1976
3960955	Purification process This invention concerns a process for purifying crude oximes, particularly crude n-paraffinone oximes containing carbonyl and/or chlorine contaminants, consisting essentially of treating said crude oximes with urea or thiourea, in the presence of water an...	06/01/1976
3954598	Purification of aqueous urea solutions in a urea dewaxing process Dilute aqueous urea solutions, contaminated with oil-solvent solution and obtained as filtrate or centrifugate in a urea dewaxing process of the type where a concentrated aqueous solution of urea is employed to form the wax-urea adduct, are purified by ad...	05/04/1976
3945912	Urea dewaxing of low n-paraffin content oils Mineral oils containing small amounts (less than 2 weight percent) of normal paraffins may be urea dewaxed to produce refrigerator oils having Freon cloud or flock points of at least minus 55°C. by utilizing large excesses of the amount of crystalline ur...	03/23/1976

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Class 564/1.5 - Adducts or inclusion compounds of urea per se or of of thiourea per se with organic compounds (e.g., urea-alkane inclusion compounds, etc.)