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| Number | Title | Issue Date |
| 7393961 | Polyhalogenated ethers (Per)haloethers having formula: X-(Rf)L-O—CF2CF2—O—CX1X2—CFX3X4 , (I) process for obtaining them and hypofluorites usable in the synthesis of said (per)hal... | 07/01/2008 |
| 6936722 | Polyhalogenated ethers (Per)haloethers having formula: X—(Rf)L—O—CF2CF2—O—CX1X2—CFX3X4 (I), process for obtaining them and hypofluorites usable in the synthesis of said (per)h... | 08/30/2005 |
| 6420401 | 1,2,5, thiadiazolidin-3-one 1,1-dioxide derivatives Substituted derivatives of 1,2,5-thiadiazolidin-3-one 1,1-dioxides, oligomers containing them, and methods of using them.... | 07/16/2002 |
| 6372943 | Polyenepolycarboxylic acids, derivatives thereof with respect to carboxyl groups, or salts of these Polyenepolycarboxylic acids represented by the following formula (1); ##STR1## (wherein n represents an integer of 0 to 5 and m represents an integer of 1 or 2, provided m is 1 when n is 0), or derivatives thereof at their carboxyl group(s) or their salts... | 04/16/2002 |
| 6114156 | Molecular level coating for metal oxide particles Polymer encapsulated metal oxide particles are prepared by combining a polyamide acid in a polar aprotic solvent with a metal alkoxide solution. The polymer was imidized and the metal oxide formed simultaneously in a refluxing organic solvent. The resulti... | 09/05/2000 |
| 5719295 | Process for preparing bis(ether anhydrides) using alkylamine derived bisimides having low melting temperatures A process for making bis(ether anhydrides) employs alkylamines having low melting temperatures thus allowing for novel intermediate process steps for preparing bis(ether anhydrides). The alkylamines have alkyl groups which contain at least three carbon at... | 02/17/1998 |
| 5536846 | Process for preparing bis(ether anhydrides) using alkylamine derived bisimides having low melting temperatures A process for making bis(ether anhydrides) employs alkylamines having low melting temperatures thus allowing for novel intermediate process steps for preparing bis(ether anhydrides). The alkylamines have alkyl groups which contain at least three carbon at... | 07/16/1996 |
| 5516918 | Substituted benzopyran and tetrahydronaphthalene compounds useful for safening herbicides in crops There is provided a method for safening herbicides in crop plants by using substituted benzopyran or tetrahydronaphthalene compounds of formula I ##STR1## Further provided are compounds of formula II and compositions comprising a herbicide and an ant... | 05/14/1996 |
| 5464549 | Oil soluble dispersants suitable for use in fuels and lubricants The dispersants are formed by reacting (a) at least one dispersant having at least one primary or secondary amino group and/or at least one hydroxyl group, with (b) at least one polyolefinic compound substituted at each terminal position by a succinic gro... | 11/07/1995 |
| 5342965 | Process for producing branched fats Branched fatty substances may be produced by reacting maleic acid anhydride with fatty acids having 16 to 24 carbon atoms and 1, 2, 3, 4, or 5 double bonds, or the esters of such acids, with alcohols containing 1 to 4 carbon atoms, in the presence of at l... | 08/30/1994 |
| 5296607 | Photochromic compound In chemical structure of a fulgide type photochromic compound having the following general formula; ##STR1## introduction of electron donative groups into its heteroaromatic structure is effective in improving the long wave length sensitivity without... | 03/22/1994 |
| 5112507 | Polymeric dispersants having alternating polyalkylene and succinic groups Novel copolymers of unsaturated acidic reactants and high molecular weight olefins wherein at least 20 percent of the total high molecular weight olefin comprises the alkylvinylidene isomer are useful as dispersants in lubricating oils and fuels and also ... | 05/12/1992 |
| 5077364 | Polymerization of maleic anhydride Polymaleic anhydride having a weight average molecular weight by gel permeation chromatography of between 450 and 800 and a polydispersivity of between 1.0 and 1.15 is produced by polymerizing maleic anhydride, using a peroxide initiator in an amount not ... | 12/31/1991 |
| 5072003 | Acid anhydrides and dianhydrides of disubstituted maleic anhydrides Compounds are disclosed which are anhydrides containing additional carboxylic acid moieties and dianhydrides of disubstituted maleic anhydride compounds wherein the acid anhydrides and dianhydrides retain their alkene character. These compounds are useful... | 12/10/1991 |
| 5003085 | Acid anhydrides and dianhydrides of disubstituted maleic anhydrides A process is disclosed for preparation of anhydrides containing additional carboxylic acid moieties and dianhydrides of disubstituted maleic anhydride compounds wherein the acid anhydrides and dianhydrides retain their alkene character. The resulting alke... | 03/26/1991 |
| 4957704 | Method of corrosion inhibition using hydrocarbyl polycarboxylates compositions Hydrocarbyl polycarboxylates are formed by the reaction of water and a basic neutralizing agent with a hydrocarbyl poly(succinic anhydride) of the formula R(succinic anhydride)x, wherein R is a hydrocarbyl group derived from a crude or refined ... | 09/18/1990 |
| 4937120 | Optical recording medium and process for producing the same A long-chain keto group is introduced into the molecule of furylfulgide hng no hydrophobic group to procure a good balance of hydrophilicity and hydrophobicity, thereby making it possible to obtain a uniform ultra-thin film optical recording medium havin... | 06/26/1990 |
| 4902701 | Tetrazolyl substituted tricyclic compounds and pharmacological compositions thereof Tricyclic compounds of formula (I) ##STR1## wherein X1 is a carboxyl or 5-tetrazolyl group X2 is carbonyl or methylene X3 is hydroxyl or a group --X4 (Cn H2n)X5 where X4 is... | 02/20/1990 |
| 4900843 | Method for dimerization of aromatic halide compounds A method of dehalogeno-dimerizing an aromatic halide compound substituted by at least one halogen atom substituted on the aromatic ring using a palladium catalyst on support in the presence of water, a reducing agent and a halogen acceptor is disclosed. T... | 02/13/1990 |
| 4845240 | Optical recording medium and process for producing the same A long-chain keto group is introduced into the molecule of furylfulgide hng no hydrophobic group to procure a good balance of hydrophilicity and hydrophobicity, thereby making it possible to obtain a uniform ultra-thin film optical recording medium havin... | 07/04/1989 |
| 4803287 | Certain photochromic fulgide compounds and method for their synthesis The invention provides a photochromic material characterized by an improvnt in balance of the substituents in the conventional furylfulgides and represented by the general formula: ##STR1## (wherein R represents an alkyl chain having 5 to 31 carbon ... | 02/07/1989 |
| 4784784 | Succinic acid esters and hydraulic fluids therefrom Hydraulic fluids contain as novel dispersants, reaction products of di- or trisuccinic anhydrides with polyethoxylated alcohols to produce polyethoxylated hydrocarbyl polyanhydrides.... | 11/15/1988 |
| 4720555 | Hydrocarbyl anhydrides Hydrocarbons substituted with at least two anhydride moieties, are useful as dispersants in aqueous based hydraulic fluids and as curing agents in epoxy resins. These anhydrides are produced by reaction of a hydrocarbon derived from a soft wax or liquid h... | 01/19/1988 |
| 4665189 | Oxiranes There are described compounds of formula ##STR1## in which n is 0, 1 or 2, R1 is a hydrocarbyl group optionally substituted with an optionally substituted phenyl group and containing from 5 to 30 carbon atoms, R2 is optionally s... | 05/12/1987 |
| 4634779 | Cyanogenation of benzopyrones and naphthopyrones There are described novel dyes of the formulae ##STR1## in which R1 and R2 independently of one another are each hydrogen, unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl, and R1 and R2 toge... | 01/06/1987 |
| 4620014 | 2-furylbutyrolactones and methods for using same Novel 2-furylbutyrolactones are directly formed by reaction of 2,5-dialkoxy-2,5-dihydrofurans and 2,3-dihydroxybutenolides in aqueous media and recovering crystalline product from an anhydrous medium. These novel compounds and compositions containing same... | 10/28/1986 |
| 4596867 | Disubstituted maleic anhydride compounds Di-substituted maleic anhydride compounds are disclosed of the structural formula ##STR1## wherein R and R1 are selected from the group consisting of aliphatic and phenyl moieties, and R2 is a divalent aromatic moiety. Poly... | 06/24/1986 |
| 4550171 | 2-(Oxo, or thio)-3-substituted 1,3-benzothiazolyl-4-cyano-7-substituted amino-benzopyrans There are described novel dyes of the formulae ##STR1## in which R1 and R2 independently of one another are each hydrogen, unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl, and R1 and R2 toge... | 10/29/1985 |
| 4526950 | Method for preparing interpolymers Interpolymers of -olefins having at least about 6 carbon atoms and unsaturated carboxylic acids or derivatives thereof, such as maleic anhydride, may be prepared by heating reactive amounts only of the monomers with a free radical initiator, prefer... | 07/02/1985 |
| 4446264 | Synergistic antioxidant mixtures Compounds prepared by reacting maleic anhydride, maleic acid or their esters with thiols; which exhibit a synergistic effect when combined with a phenolic antioxidant in the stabilization of organic materials such as natural and synthetic polymers, rubber... | 05/01/1984 |
| 4442298 | Chemical synthesis of ethylene/maleic anhydride dimer with phenylethyl end group A phenylethyl substituted dimer of ethylene and maleic anhydride, names 7-phenyloctane-(1,2),(5,6)-dianhydride, is chemically synthesized by (a) alkylating alkyl 2,4-dihalobutyrate with alkyl 2-cyano-3-phenylbutyrate, (b) alkylating the resulting halide conden... | 04/10/1984 |
| 4391981 | Thio bis-lactone compounds derived from n-octenyl succinic anhydride Lactone oxazoline reaction products of hydrocarbon substituted lactone carboxylic acids, for example, polybutyl lactone carboxylic acid, with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl)aminomethane (THAM), and their derivatives are ... | 07/05/1983 |
| 4364956 | 5-Substituted pyranone compounds and their use as pharmaceuticals to treat an immediate hypersensitivity condition Compounds are described of the formula ##STR1## in which R1 is COOR5, CONHR5, cyano, 5-tetrazolyl or 5-tetrazolylaminocarbonyl, where R5 is hydrogen or C1-6 alkyl; R2 is hydrogen or C | 12/21/1982 |
| 4302395 | Lactone oxazolines as oleaginous additives Lactone oxazoline reaction products of hydrocarbon substituted lactone carboxylic acids, for example, polybutyl lactone carboxylic acid, with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl)aminomethane (THAM), and their derivatives are ... | 11/24/1981 |
| 4271288 | Novel polyamic acid polymers and polyimide derivatives thereof Novel polymeric materials are formed from dianhydride compounds of the formula ##STR1## wherein Ar, R' and R" are named substituents, and both x's are either zeros or ones.... | 06/02/1981 |
| 4263212 | Process for preparation of substituted olefins The present invention relates to a process for the preparation of aromatic or furyl substituted olefins, which comprises reacting an olefinic compound with an aromatic compound or furan compound in the presence of carbon monoxide by using a rhodium carbon... | 04/21/1981 |
| 4260702 | Polymers containing cyclic ether units joined through 2,6-diyl linkages Polymers that have a number average molecular weight of at least 1000 and that contains at least 5% by weight of segments that contain at least two consecutively recurring cyclic ether units wherein at least one of said tetrahydropyran 2,6-diyl unit of th... | 04/07/1981 |
| 4260548 | Process for preparing polyethylene waxes Low molecular weight ethylene homo and copolymer waxes are prepared by using a combination of (1) incremental addition of free radical catalyst (2) at high temperatures up to 150° C. and (3) high pressures up to 3000 psi. Preferably molten aliphatic waxe... | 04/07/1981 |
| 4169842 | Carboxymethyloxysuccinic anhydride and acid halide thereof Carboxymethyloxysuccinic anhydrides and/or halides, their reaction products with active hydrogen compounds and methods for preparing the anhydrides, the halides and the reaction products are disclosed. The reaction products are variously useful in the fie... | 10/02/1979 |
| 4167514 | Heterosubstituted alkyl lactone acids, esters and amides Lactone oxazoline reaction products of hydrocarbon sustituted lactone carboxylic acids, for example, polybutyl lactone carboxylic acid, with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl)aminomethane (THAM), and their derivatives are u... | 09/11/1979 |
