...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7825268 | Alkoxylactones, alkoxylactams and alkoxythiolactams for controlling processes based on microbial interaction Compounds of the Formula I, wherein A1 is O or NH; A2 is O or S; each of R1 and R2 is independently hydrogen, a methyl or C2-C8-saturated or mono- or doubly ... | 11/02/2010 |
| 7638642 | Method for the preparation of D-erythro-2,2-difluoro-2-deoxy-1-oxoribose derivative 3R-carboxylate enantiomer derivative of formula (III) can be prepared easily and selectively by the method of the present invention, and a highly pure D-erythro-2,2-difluoro-2-deoxy-1-oxoribose derivative can be prepared efficiently from the compound of formula (III... | 12/29/2009 |
| 6884525 | Red light emitting materials This invention features a compound having the formula: X is O or NR1; and each of Y and Z, independently, is in which each of R1, R2, R | 04/26/2005 |
| 6849203 | Photoisomerizable compounds The invention relates to photoisomerizable compounds of formula I wherein A, Z, L, R, R1, k, m and r are defined herein. ... | 02/01/2005 |
| 6828276 | Herbicidally active benzoylcyclohexanediones There are described benzoylcyclohexanediones of the formula I, their preparation, and their use as herbicides and plant growth regulators. In this formula (I), C1, C2, C3 are cyclic radic... | 12/07/2004 |
| 6624324 | Process for producing optically active hemiesters There is disclosed a process for producing an optically active hemiester of formula (1): ##STR1## wherein R1, R2 and R5 represent the same meanings as described below, which comprises reacting a cyclic acid anhydride o... | 09/23/2003 |
| 6511942 | 2,4,5-trisubstituted phenylketo-enols for use as pesticides and herbicides The invention relates to new phenyl-substituted cyclic ketoenols of the formula (I) ##STR1## in which Het represents one of the groups ##STR2## wherein A, B, D, G, X, Y and Z have the meaning given in the description, several processes and intermedia... | 01/28/2003 |
| 6420419 | L-ascorbic acid 2-phosphate zinc salt and process for manufacturing the same L-Ascorbic acid 2-phosphate zinc salt and a salt hydrate thereof having excellent solubility and exhibiting good stability even under weakly acidic conditions. Also disclosed is a process of manufacturing L-ascorbic acid 2-phosphate zinc salt by displacin... | 07/16/2002 |
| 6380246 | Alkyl-dihalogenated phenyl-substituted ketoenols useful as pesticides and herbicides The present invention relates to new compounds of the formula (I) ##STR1## in which X represents halogen, Y represents halogen or alkyl and Z represents halogen or alkyl, with the proviso that always one of the radicals Y and Z represents halogen while the oth... | 04/30/2002 |
| 6127409 | Ascorbic acid derivative and vitamin C preparation containing the same A novel ascorbic acid derivative having both sufficiently improved stability and liposolubility, and facilitated cellular uptake. Also disclosed is a process for producing the derivative and a composition capable of effectively providing the action of vit... | 10/03/2000 |
| 6060600 | Substituted tetronic acids useful for treating HIV and other retroviruses This application discloses novel tetronic acids for the treatment of AIDS and other diseases caused by retroviruses.... | 05/09/2000 |
| 6060575 | 1,4-bis(3,4-dicarboxyphenoxy)-2-tert-butylbenzene dianhydride and method of using the same The present invention provides a series of easily processable poly(ether-imide)s that are organic-soluble and can afford colorless films, their organic solutions and their manufacturing process. The poly(ether-imide) is prepared from a dianhydride and a d... | 05/09/2000 |
| 5981576 | (Methylsulfonyl)phenyl-2-(5H)-furanones as COX-2 inhibitors The invention encompasses the novel compound of Formula A that is useful in the treatment of cyclooxygenase-2 mediated diseases. ##STR1## The invention also encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated di... | 11/09/1999 |
| 5958957 | Modulators of molecules with phosphotyrosine recognition units The present invention relates to novel organic compounds, to methods for their preparation, to compositions containing them, to their use for treatment of human and animal disorders, to their use for purification of proteins or glycoproteins, and to their... | 09/28/1999 |
| 5856323 | Compounds and methods for the treatment of disorders mediated by platelet activating factor or products of 5-lipoxygenase 2,5-Diaryl tetrahydrofurans, 2,5-diaryl tetrahydrothiophenes, 2,4-diaryl tetrahydrofurans, 2,4-diaryl tetrahydrothiophenes, 1,3-diaryl cyclopentanes, 2,4-diaryl pyrrolidines, and 2,5-diaryl pyrrolidines are disclosed that reduce the chemotaxis and respira... | 01/05/1999 |
| 5750516 | Phosphoric diester This invention provides a phosphoric diester of formula (I) which is available on di-esterification of phosphoric acid with L-ascorbic acid involving its 5-hydroxyl group and tocopherol involving its hydroxyl group or a pharmacologically acceptable salt t... | 05/12/1998 |
| 5746933 | Lubricating oil and composition for refrigerating machine, and refrigerating machine A lubricating oil for refrigerating machines comprises polyoxyalkylene compounds represented by the formula (I): ##STR1## Wherein A is a residue obtained from a compound which has both a heterocyclic ring having an ether linkage therein and hydroxyl ... | 05/05/1998 |
| 5663380 | Cysteine protease inhibitors containing heterocyclic leaving groups A class of cysteine protease inhibitors which inactivate a cysteine protease by covalently bonding to the protease and releasing a heterocyclic leaving group is presented. The cysteine protease inhibitors of the present invention comprise a first portion ... | 09/02/1997 |
| 5648486 | Compounds and methods for the treatment of inflammatory and immune disorders 2,5-Diaryl tetrahydrofurans, 2,5-diaryl tetrahydrothiophenes, 2,4-diaryl tetrahydrofurans, 2,4-diaryl tetrahydrothiophenes, 1,3-diaryl cyclopentanes, 2,4-diaryl pyrrolidines, and 2,5-diaryl pyrrolidines are disclosed that reduce the chemotaxis and respira... | 07/15/1997 |
| 5585373 | 3-(7'-oxo-1'-aza-4'-oxabicyclo[3.2.0]-hept-3'-YL)propionic acid derivative as antitumor agent A derivative of 3-(7'-oxo-1'-aza-4'-oxabicyclo[3.2.0 ]hept-3'-yl)propionic acid represented by the formula ##STR1## wherein R1 is a hydrogen atom, a lower alkyl group optionally having one or more cycloalkyl groups, a lower acyl group, a b... | 12/17/1996 |
| 5580995 | Process for preparing anhydride-functional monomers Anhydride-functional polymerizable monomers having the structure: ##STR1## and polymers and reactive compositions prepared from these monomers are disclosed. The reactive compositions are especially useful in primer and clearcoat/basecoat application... | 12/03/1996 |
| 5580996 | Oxygen-containing aliphatic compounds and their use as intermediates for the preparation of 4-hydroxy-2, 5-dimethyl-3(2H)-furanone The compounds of the invention are characterised by the formulae ##STR1## wherein index p represents an integer equal to 2 or 3 and q can take the value zero or 1, with the provision that p+q=3. Said compounds are obtained from hex-3-yne-2,5-diol fol... | 12/03/1996 |
| 5519052 | Carbonarin antiinsectan metabolites Carbonarins A, B, C, D, E, F, G, and H have been isolated from the sclerotia of the fungus Aspergillus carbonarius. The carbonarins are effective for controlling Coleopteran and Lepidopteran insects. The carbonarins have the structure: ##STR1## ... | 05/21/1996 |
| 5434151 | Compounds and methods for the treatment of disorders mediated by platelet activating factor or products of 5-lipoxygenase 2,5-Diaryl tetrahydrofurans, 2,5-diaryl tetrahydrothiophenes, 2,4-diaryl tetrahydrofurans, 2,4-diaryl tetrahydrothiophenes, 1,3-diaryl cyclopentanes, 2,4-diaryl pyrrolidines, and 2,5-diaryl pyrrolidines are disclosed that reduce the chemotaxis and respira... | 07/18/1995 |
| 5420157 | Inhibitors of farnesyl protein transferase or prodrugs thereof This invention relates to pharmaceutical compounds of structural formulae (I) and (II): ##STR1## and compositions and methods of treatment utilizing these compounds to inhibit farnesyl protein transferase and farnesylation of the oncogene protei... | 05/30/1995 |
| 5412121 | Process for the preparation of 4-hydroxy-3[2H]furanones A process is provided for the preparation of 5-alkyl-4-hydroxy-3[2H]furanones and/or 2,5-dialkyl-4-hydroxy-3[2H]furanones, wherein each alkyl group independently has one to six carbons, comprising (a) saponifying an ester selected from the group of 3,4-di... | 05/02/1995 |
| 5358938 | Compounds and methods for the treatment of disorders mediated by platelet activating factor or products of 5-lipoxygenase 2,5-Diaryl tetrahydrofurans, 2,5-diaryl terahydrothiophenes, 2,4-diaryl tetrahydrofurans, 2,4-diaryl tetrahydrothiphenes, 1,3-diaryl cyclopentanes, 2,4-diaryl pyrrolidines, and 2,5-diaryl pyrrolidines are disclosed that reduce the chemotaxis and respirato... | 10/25/1994 |
| 5298658 | Photographic elements with reduced print-through A photographic element is detailed which provides for improved resolution by decreasing the blue and ultraviolet radiation typically associated with internal scatter and print-through. These and other improvements are provided in a photographic element co... | 03/29/1994 |
| 5223533 | New benzylcyclanone derivatives process for preparing them and cosmetic and pharmaceutical compositions containing them The invention relates to the benzylcyclanone derivatives of formula: ##STR1## where R1 and R3 denote H, OH, linear or branched C1 -C8 alkyl or linear or branched C1 -C8 alkoxy, R2 | 06/29/1993 |
| 5175298 | Dipeptide hydroxy ethylene isostere synthesis and intermediates therefor The present invention provides processes and intermediates for one preparation of the hydroxy ethylene isostere dipeptide of leu-val which is itself useful in the preparation of renin inhibitory peptides. The process employs certain novel oxazolidenes.... | 12/29/1992 |
| 5171867 | Method of preparing 2,5-dimethyl-4-hydroxy-2H-furan-3-one The present invention relates to a method of preparing 2,5-dimethyl-4-hydroxy-2H-furan-3-one. It consists in reacting hydrogen peroxide with 2,5-dimethyl-2H-furan-3-one in the presence of a base.... | 12/15/1992 |
| 5149840 | Hydroxy furanone preparation The invention provides a process for the preparation of natural 5-methyl- and 2,5-dimethyl-4-hydroxy-2,3-dihydrofuran-3-one, by heating and reacting a pentose or 6-deoxyhexose in the presence of an amino acid and directly separating, the hydroxyfuranone f... | 09/22/1992 |
| 4973583 | Pesticidal O-halogenocyclobutyl S-alkyl (di)thiphosph)(on)ates Pesticidal O-halogenocyclobutyl S-alkyl (di) thiophosph(on)ates of the formula ##STR1## in which x represents oxygen or sulphur, p represents zero, one or two, m represents zero, one or two, n represents 2, 3 or 4 R1 represents alkyl, alkoxy wh... | 11/27/1990 |
| 4889735 | Furanic esters and their utilization as flavor ingredients Furanic esters of formula ##STR1## wherein R designates a linear or branched, saturated or unsaturated C2 -C6 alkyl radical, are novel compounds having useful organoleptic properties and, consequently, can be used advantageously... | 12/26/1989 |
| 4818795 | Polymaleic acid, its preparation and its use A process for the preparation of polymaleic acid by polymerizing maleic anhydride in an aromatic hydrocarbon at from 60° to 200° C., using from 1 to 20% by weight, based on maleic anhydride, of peroxyesters derived from saturated or ethylenically unsatu... | 04/04/1989 |
| 4762848 | 1,3-thiazoles and their use as immunomodulators Heterocyclic sulfides of the general formula heterocycle-S-R, a process for their preparation and, in particular, their use for immunostimulation, immunorestoration and cytostatic treatment, and pharmaceutical agents, which contain a sulfide of this type,... | 08/09/1988 |
| 4758680 | Pineapple ketone carbonate derivatives A compound of the general formula, ##STR1## wherein R1 and R2 independently are --H, --CH3, or --CH2 CH3 ; and R3 is alkyl of from 1 to 10 carbons or aryl of from 6 to 10 carbons.... | 07/19/1988 |
| 4680403 | Process for producing N-protected--L-aspartyl-L-phenylalanine methyl ester The invention relates to a process for producing N-protected-L-aspartyl-L-phenylalanine methyl ester, which comprises esterifying L-phenylalanine with methanol in the presence of a strong acid catalyst, adding, to the resulting solution, an aqueous... | 07/14/1987 |
| 4590284 | Pineapple ketone 1'-alkoxyalkyl derivatives A compound of the general formula, ##STR1## wherein R1 and R2 independently are --H, --CH3, or --CH2 CH3 ; and R3 and R4 are independently alkyl or alkenyl of from 1 to 10 c... | 05/20/1986 |
| 4568378 | Herbicidal 5-cycloalkylamino-3-oxo-4-(substituted-phenyl)-2,3-dihydrofuran and derivatives thereof 5-cycloalkylamino-3-oxo-4-(substituted-phenyl)-2,3-dihydrofuran and derivatives thereof. The compounds generally exhibit both pre-emergence and post-emergence phytotoxicity and are useful as herbicides and also at low dosages as plant growth regulating ag... | 02/04/1986 |