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| Number | Title | Issue Date |
| 8058469 | Method for making carbamates, ureas and isocyanates The present invention provides methods of forming carbamates, ureas, and isocyanates. In certain embodiments these methods include the step of reacting an amine with an ester-substituted diaryl carbonate to form an activated carbamate which can be further derivitize... | 11/15/2011 |
| 7767843 | Process for the preparation of phenylcarbamates A process for the preparation of aminoalkyl phenyl carbamate compounds of Formula I, wherein R1 and R2 independently are hydrogen or a C1-6 alkyl; R3 and R4 are the sam... | 08/03/2010 |
| 7329689 | Monohydrate hydrochloride of the 4-hydroxycarbamoyl-phenyl)-carbamic acid (6-diethylaminomethyl-naphtalen-2-yl) ester A compound having formula (I) and a process for the preparation thereof are described. ... | 02/12/2008 |
| 7253282 | Hexafluoroisopropanol substituted cyclohexane derivatives The invention is concerned with novel hexafluoroisopropanol substituted cyclohexane derivatives of formula (I) wherein R1 to R4, X, m and n are as defined in the description and in the claim... | 08/07/2007 |
| 7199088 | Lubricating oil for a diesel powered engine and method of operating a diesel powered engine A lubricating oil composition useful for a diesel-powered engine is provided that reduces NOx emissions level produced from a diesel-powered engine. The lubricating oil comprises a base oil and at least one oil-dispersible source of HNCO such as isocyanates. A metho... | 04/03/2007 |
| 7164037 | Enzymatic production of (meth)acrylic esters that contain urethane groups Enzymatic preparation of (meth)acrylic esters containing urethane groups, and their use in radiation-curable compositions. ... | 01/16/2007 |
| 7122696 | Processes for preparation of N-protected-β-amino alcohols and N-protected-β-amino epoxides Herein are disclosed a process for increasing in purity, or purifying, an N-protected-β-aminoalcohol which process comprises (i) adding water to a polar organic solvent in which an N-protected-β-aminoalcohol such as a (2R,3S)- or (2S,3R)-3-tert-butoxycarbonylamino... | 10/17/2006 |
| 6686494 | Synthesis of S-alkyl and S-aryl thiocarbamates, one-pot two-step general synthesis A method for preparing S-alkyl and S-aryl thiocarbamates comprising reacting a precursor thiol reagent with trichloroacetyl chloride to produce an S-alkyl and S-aryl trichloroacetyl thioester intermediate, which is reacted with an amine to yield the corre... | 02/03/2004 |
| 6642408 | Intermediates for selectively soluble magenta colorants Novel addition products of isocyanates with oxyalkylene-substituted aminophenol compounds as intermediates for the production of urethane-substituted xanthene colorants, particularly triphenylmethane derivatives such as rhodamines, are provided. The xanth... | 11/04/2003 |
| 6566481 | Polyisocyanates with allophanate groups derived from alicyclic alkanediols A polyisocyanate of formula (I) OCN--R1 --[--NX--CO--O--R2 --O--CO--NH--R1 --]n --NCO in which the units R1, X and R2 have the meanings: R1 is a unit of the formula (II): --CH2--CH2 ... | 05/20/2003 |
| 6548696 | Low monomer 1:1-monoadducts from hydroxy (meth) acrylates and diisocyanates and a process for their manufacture A low monomer 1:1-monoadduct from a diisocyanate and a hydroxy(meth)acrylate with a free diisocyanate content of less than 0.7% by weight and a free NCO content of 10.4-16.4% by weight can be used as a starting material for an acrylic or NCO functionalize... | 04/15/2003 |
| 6545160 | 댚minocetic acid derivatives- 댔댧 receptor antagonists Disclosed are compounds which bind 댔ଲ.sub.7 integrin. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by 댔ଲ.sub.7 integrin. Such compounds are usefu... | 04/08/2003 |
| 6437078 | Aliphatic polyurea prepolymers, compositions and methods An aliphatic polyurea prepolymer prepared by the catalyst-free, exothermic reaction of a caprolactone monomer, an aliphatic primary polyamine, and an aliphatic monomer-free polyisocyanate, such as a hexamethylene diisocyanate dimer or trimer or mixtures t... | 08/20/2002 |
| 6410781 | -aminoacetic acid derivatives-댔댧 receptor antagonists Disclosed are compounds which bind 댔ଲ.sub.7 integrin. Certain of these compounds also inhibit leukocyte adhesion and, in particular, leukocyte adhesion mediated by 댔ଲ.sub.7 integrin. Such compounds are usefu... | 06/25/2002 |
| 6392001 | Process for the production of light-stable polyisocyanates containing allophanate groups The present invention relates to a process for the production of polyisocyanates containing allophanate groups and having aliphatically and/or cycloaliphatically bound isocyanate groups by reacting organic compounds containing urethane groups with organic... | 05/21/2002 |
| 6320012 | Isocyanate formulations containing activated chain extenders The reactivity of isocyanate formulations is controlled by including a chain extender corresponding to the formula HO--R1 --NR2 --X--NR3 --R4 --OH (I) in which R1, R2, X, R3 and R4 | 11/20/2001 |
| 6284918 | Selective inhibitors of prostaglandin endoperoxide synthase-2 The present invention provides a compound of the formula ##STR1## wherein when X is S; R is selected from the group consisting of CH3, CH2 CH3, CH2 Ph, (CH2)2 Ph, (CH2)2 ... | 09/04/2001 |
| 6239247 | Fluorochemical composition comprising a urethane having a fluorochemical oligomer and a hydrophilic segment to impart stain release properties to a substrate The present invention provides a method for preparing a fluorochemical composition comprising a urethane by reacting: (A) fluorochemical oligomer of the formula (I): Mfm Mn --Q1 --T1 wherein Mf | 05/29/2001 |
| 6228979 | Cyclic carbonates and their reactions with amines Six-membered cyclic carbonates (2-oxo-1,3-ioxanes) in which keto or carbohydrocarbyloxy groups are bound to the 5 position of the ring are disclosed. They react surprising quickly with primary or secondary cyclic amines, and the novel product hydroxyureth... | 05/08/2001 |
| 6143917 | Process for producing aryl carbamates A process for producing an aryl carbamate of a high purity at a high yield by reacting a diaryl carbonate with an amine compound having one or more hydrogen atoms bonded to the N position in the presence of carboxylic acid(s) of the following general form... | 11/07/2000 |
| 6072069 | Biodegradable nonionic contrast media Novel non-ionic contrast media are provided, which fulfill the requirements for x-ray visualization media, while being biodegradable. The compounds are characterized by being triiodo-3,5-diaminobenzoic acid derivatives, where the functional groups are der... | 06/06/2000 |
| 6034096 | Compounds with anti-inflammatory and immunosuppressive activities The present invention provides medicinal compounds that are characterized by a cyclic moiety (A) linked through a carboxamido group (more specifically, a carbamate group or a urea group) to another cyclic moiety (B) which is in turn linked to another, N-s... | 03/07/2000 |
| 6022989 | Process for the preparation of an activated amino acid A process is disclosed for the preparation of an N-acylated activated derivative of an amino acid or a salt thereof.... | 02/08/2000 |
| 5859163 | Allophanate group-containing polyisocyanates improved compatibility with aldimines The present invention relates to coating compositions containing a) aldimines and b) polyisocyanates which i) contain 2 to 35% by weight of allophanate groups, based on the weight of the polyisocyanates, ii) have a viscosity of less than 3000 mpa.s at 25° C. when ... | 01/12/1999 |
| 5849750 | Dynemicin analogs Non-naturally occuring dynemicin analogs are provided, which are useful as DNA cleaving agents, cytotoxic agents, and/or anti-tumor compounds. Methods of making dynemicin analogs are also provided.... | 12/15/1998 |
| 5807957 | Cationic film-forming polymer compositions, and use thereof in topical agents delivery system and method of delivering agents to the skin A mixture of lipophilic and amphiphilic/hydrophilic film-forming polymers of the formula (I) R--(CO)m Y1 --(CH2 CHR1 O)n --CONH--Z--NHCO(OCH2 CHR2)n' --Y2 --(C... | 09/15/1998 |
| 5767220 | Low viscosity, ethylenically unsaturated polyurethanes containing allophanate groups The present invention relates to ethylenically unsaturated polyurethanes which are substantially free from isocyanate groups and have a) a total content of (meth)acryloyl groups (calculated as C=C, MW 24) of 1 to 20% by weight. b) an allophanate group content ... | 06/16/1998 |
| 5734082 | Hydroxyethyl aminimides This invention relates to a class of aminimides structurally characterized as an acyl nitrogen-nitrogen ylide such that the acyl moiety possess the structural diversity element G, the quaternary nitrogen possess structural diversity elements E and F, and ... | 03/31/1998 |
| 5491256 | Composition of matter for aliphatic-aromatic ureas, biurets, and allophanates as nitric oxide reducing agents in diesel emissions A composition of matter comprising ureas, biurets or allophanates structurally represented, respectively, by ##STR1## where R is hydrogen or a (C1 -C50) linear or branched aliphatic, alkenyl, alkynyl or aryl hydrocarbon; ##... | 02/13/1996 |
| 5414120 | Polyether-substituted imide compounds and their use The present invention relates to novel polyether-substituted compounds of imides and their use as surface-active agents.... | 05/09/1995 |
| 5413615 | Polyalkyl hydroxy and amino aromatic carbamates and fuel compositions containing the same Polyalkyl hydroxy and amino aromatic carbamates having the formula: ##STR1## or a fuel-soluble salt thereof; wherein X is hydroxy or amino; R1 and R2 are independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, lower ... | 05/09/1995 |
| 5318993 | Antihyperlipidemic benzoquinones The present invention relates to novel benzoquinones which are useful as antihyperlipidemic agents. The present invention also provides a process for their preparation, pharmaceutical compositions, and a method for treating birds and mammals in need there... | 06/07/1994 |
| 5283352 | Pharmacologically active compounds, methods for the preparation thereof and compositions containing the same Catechol compounds of formula I ##STR1## where R1, R2, R3 and X are as described herein are effective Catechol-O-methyltransferase inhibitors.... | 02/01/1994 |
| 5247121 | Alkyl esters of n-carboalkyloxy amino-11-undecanoic acids, their processes of preparation and their use as thickening agents The alkyl esters of N-carboalkyloxy-11-aminoundecanoic acids have the following general formula: ##STR1## wherein R is linear or branched C7-30 alkyl, linear or branched C4-22 alkenyl or a radical of formula: ##STR2## ... | 09/21/1993 |
| 5210273 | Process for the preparation of mono- and oligourethanes This invention relates to a process for the preparation of N,N-disubstituted mono- and oligourethanes by the reaction of N-aromatically, N-aliphatically, N-cycloaliphatically, and N-araliphatically substituted mono- and oligourethanes with dialkyl ca... | 05/11/1993 |
| 5200551 | Method of preparing an intermediate for the manufacture of bambuterol The present invention relates to an improved method for the preparation of an intermediate for bambuterol, i.e. for the preparation of 2'-bromo-3,5-di[N,N-dimethylcarbamoyloxy]acetophenone (1), by reacting 3,5-dihydroxyacetophenone with N,N-dimethylcarbam... | 04/06/1993 |
| 5130457 | Process for the preparation of N,N-disubstituted mono- and oligourethanes N,N-disubstituted monourethanes and oligourethanes are produced by reacting (a) N-aliphatically and/or N-cycloaliphatically and/or N-araliphatically substituted monourethanes and/or oligourethanes with an alkylating agent in the presence of a solid alkali... | 07/14/1992 |
| 5126477 | Carbamates, their production and use as fuels additives A process for the production of a carbamate suitable for use as a detergent additive to internal combustion engine fuels which process comprises reacting either ammonia, a primary amime or a secondary amine with a dihydrocarbyl carbonate in the presence a... | 06/30/1992 |
| 5103041 | Carbamates, their production and use as fuels additives A process for the production of a carbamate having formula (I), wherein X and Y are independently either hydrogen, a hydrocarbyl group or a hetero-substituted hydrocarbyl group or the group of formula (II), wherein Z is either a divalent hydrocarbyl, a su... | 04/07/1992 |
| 5066819 | Process for the preparation of aryl esters of N-alkyl carbamic acids The invention relates to a process for the preparation of aryl esters of N-alkyl carbamic acids. The process comprises reacting an alkyl N-alkyl carbamate of the general formula: R1 --NH--COO--R3 wherein R1 and R3 ar... | 11/19/1991 |