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| Patent # | Description |
|---|---|
| US-4,841,062 |
New cephem and cepham compounds and processes for preparation thereof Compounds of the formula: ##STR1## wherein R.sup.2 is cyclo(lower)alkyl or lower alkynyl having 2 to 6 carbon atoms, and R.sup.6 is amino or protected... |
| US-4,841,061 |
Process for producing cyclic amines A process for producing a cyclic amine represented by the general formula ##STR1## wherein each of R and R' is selected from hydrogen, a methyl group and an ... |
| US-4,841,060 |
Vapor-phase intramolecular dehydration reaction of alkanolamines Catalytic vapor phase intramolecular dehydration reaction of an alkanolamine represented by the general formula ##STR1## wherein each of R and R' is... |
| US-4,841,059 |
Pyridine-enamines Antibacterially active new 1,8-bridged 4-quinolone-3-carboxylic acid derivatives of the formula ##STR1## in which Y is carboxyl or a derivative... |
| US-4,841,058 |
Viologen derivative The present invention relates to a novel viologen derivative having at least one polymerizable vinyl group directly bonded to a viologen skelton and a process... |
| US-4,841,057 |
Cyclic imido anthraquinone compounds An anthraquinone compound represented by formula: ##STR1## wherein R and X are as defined in the specification, and a polarizing film containing the same.... |
| US-4,841,056 |
Substituted hexahydro-4H-indolo[6,5,4-cd]indoles There are disclosed intermediates to pharmaceutical compounds of the formula ##STR1## in which R.sup.1 is an aliphatic or aromatic function, and R.sup.2... |
| US-4,841,055 |
Desmosine derivatives and reagent for preparing artificial antigens A novel desmosine derivative, which is useful for preparing a desmosine artificial antigen, has an activated, disulfide bond on the side chain at 3 or 5 position... |
| US-4,841,054 |
2,6-dimethyl-3,5-dimethoxycarbonyl-4-(5'-tri
methylsilyl-2'-furyl)-1,4-dihydropyridine 2,6-dimethyl-3,5-dimethoxycarbonyl-4-(5'-trimethylsilyl-2'-furyl)-1,4-dihyd ropyridine which has the formula ##STR1## This compound exhibits a hypotensive... |
| US-4,841,053 |
Process for desensitizing a 1-(alkylamino)alkyl-polysubstituted
piperazinone during recovery Certain polysubstituted piperazinones (PSP) having two or three methylene groups linking the N.sup.1 atom of the ring to the N atom of a terminal amine group,... |
| US-4,841,052 |
Naphthalic acid imides electrophotographic toners Positively charged electrophotographic toners contain, in addition to conventional resin and pigment particles, an additive reinforcing the cationic charge, of... |
| US-4,841,051 |
Phenylpiperazine derivatives The present invention relates to a phenylpiperazine derivative represented by the general formula: ##STR1## wherein R.sub.1 stands for a lower alkyl group;... |
| US-4,841,050 |
Carbazole containing benzopyrans Benzopyrans of the formula ##STR1## where X is a radical ##STR2## and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and the ring A have the meanings stated... |
| US-4,841,049 |
Reactive dyes of the dioxazine series Reactive dyes of the formula ##STR1## in which (R).sub.n stands for n substituents R which, independently of each other, can be C.sub.1-4 -alkyl, C.sub.1-4... |
| US-4,841,048 |
Dioxazine compound having vinylsulfone type fiber reactive group A dioxazine compound of the formula, ##STR1## wherein A is a divalent group of the formula, ##STR2## in which * and ** denote linkages to the adjacent... |
| US-4,841,047 |
4-benzyl-1-(2H)-phthalazinone-derivates There are provided 4-benzyl-1-(2H)-phthalazinone derivatives having antiallergic activity of the formula ##STR1## wherein R.sub.1 represents fluorine,... |
| US-4,841,046 |
Process for the preparation of pyridobenzodiazepinone The present invention refers to an improved method for the preparation of 6,11-dihydro-5H-pyrido[2,3-b][1,5]benzodiazepin-5-one in which the condensation between... |
| US-4,841,045 |
Synthesis of vinblastine and vincristine type compounds A new process for the stereospecific synthesis of alkaloids of the vinblastine and vincristine type including the synthesis of vinblastine and vincristine as... |
| US-4,841,044 |
Cephalosporin derivatives Cephalosporin derivatives represented by the general formula ##STR1## wherein R is a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms, R' is... |
| US-4,841,043 |
Stereoselective synthesis of 1-.beta.-alkyl carbapenem antibiotic
intermediates There is disclosed a process for producing carbapenam diazo intermediates of the formula ##STR1## wherein R.sup.1 is hydrogen or a hydroxy-protecting... |
| US-4,841,042 |
Process for the preparation of carbapenem intermediates A process for the preparation of a 4-[3-carboxy-3-diazo-2-oxopropyl]azetidin-2-one of the formula ##STR1## comprising reacting a 4-acetoxy-2-azetininone of... |
| US-4,841,041 |
Pentasaccharides and tetrasaccharides having anti-thrombotic activity The present invention is dealing with new pentasaccharides of the formula I: ##STR1## These pentasaccharides have anti-thrombotic activity and especially... |
| US-4,841,040 |
Phosphated, oxidized starch and use of same as dispersant in aqueous
solutions and coating for lithography A novel phosphated, oxidized starch having a molecular weight of about 1,500 to about 40,000 Daltons, a carboxyl degree of substitution of 0.30 to 0.96, and a... |
| US-4,841,039 |
2',3'-dideoxy-5-substituted uridines and related compounds as antiviral
agents A compound which exhibits antiviral activity towards HTLV-III/LAV, having the formula: ##STR1## wherein R.sup.4 is O or NH; R.sup.5 is a C.sub.2-4 alkyl... |
| US-4,841,038 |
Method for preparing coenzyme a esters of all-trans- and 13-cis retinoic
acids The invention relates to a new method for preparing all trans- and 13-cis retinoyl CoA. |
| US-4,841,037 |
Amino sulfonaphtholtrisazo compounds and recording liquids containing
the same A naphthalene trisazo compound represented by the general formula (I) or (II): ##STR1## wherein A and B each represents a substituted or unsubstituted... |
| US-4,841,036 |
Phenyl acothienylthiazoaniline dis-azo dye for polyester fibers A dis-azo dye for polyester fibers represented by the formula ##STR1## wherein Y is hydrogen or acetylamino and R.sup.1 and R.sup.2 are each C.sub.1... |
| US-4,841,035 |
Certain-2-pyridyloxy-phenoxy-propionic acid-s-thiazolin-2-yl and
benzothiazol-2-yl ester derivatives A propionic acid thiol ester derivative having the formula: ##STR1## wherein R.sub.1 is a cyano group, a trifluoromethyl group, a halogen atom or a nitro... |
| US-4,841,034 |
Water-soluble azo compounds having a triazine moiety and dyeing method
therewith Water-soluble metallized disazo compounds which, in the free acid form, are represented by the following formula: ##STR1## wherein R.sub.1 and R.sub.2 stand... |
| US-4,841,033 |
Reactive red monoazo dye compound having two vinylsulfone type fiber
reactive groups A monoazo compound of the following formula in a free acid form, ##STR1## wherein R.sub.1 is alkyl, .beta.-carboxyethyl, .beta.-carboxyvinyl or phenyl,... |
| US-4,841,032 |
Fiber reactive monoazo compounds having two vinylsulfone type fiber
reactive groups in the molecule A monoazo compound of the following formula in a free acid form, ##STR1## wherein A.sub.1 and A.sub.2 are phenylene or naphthylene, Z.sub.1 and Z.sub.2 are... |
| US-4,841,031 |
Reactive dye having both monochlorotriazinyl and vinylsulfone type
reactive groups A novel reactive monoazo dye, capable of giving cellulose fiber materials a deep orange to scarlet color and superior in build-up and chlorine fastness... |
| US-4,841,030 |
Azo reactive dyestuffs They are useful for dyeing and printing materials containing hydroxyl groups or amide groups. |
| US-4,841,029 |
Diazo colors and dyeing method using the same A disazo color having three triazine rings, one of which is substituted with a reactive group of --NR.sup.1 --A--SO.sub.2 C.sub.2 H.sub.4 OSO.sub.3 M, wherein... |
| US-4,841,028 |
Reactive dyes comprising a reactive radical bonded to the chromophor by
a urea bridge member Reactive dyes of the formula ##STR1## in which D is the radical of an organic dye of the monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine,... |
| US-4,841,027 |
Process for preparing phenyl- and naphthylazo-aminonaphthol sulphonic
acids Improvement in a process for producing an arylazo-aminonaphtholsulfonic acid represented by a free acid of the formula, ##STR1## wherein A is a phenyl or... |
| US-4,841,026 |
Virally inactivated, non-toxic, human transferrin preparation Method and composition for providing a non-toxic, sterile, virally inactivated human transferrin preparation for use in cell culture systems. The method... |
| US-4,841,025 |
Antibody preparations A monoclonal antibody preparation having a single binding activity, which activity is in respect of a cell surface antigen, comprises IgG antibody molecules in... |
| US-4,841,024 |
Purification of antibodies I(g)G3 antibody is purified by affinity chromatography and collection of released antibody at a pH of 9.0 to 9.6. The purification is effected in a column... |
| US-4,841,023 |
Inactivation of viruses in labile protein-containing compositions using
fatty acids There is disclosed a process for rendering a labile protein-containing composition, substantially free of lipid-containing viruses without incurring substantial... |
| US-4,841,022 |
Method for removing impurities from polyphenylene sulfide resin Impurities can be removed from a polyphenylene sulfide resin with a high efficiency by heat-mixing a powdery phenylene sulfide resin with a solvent selected from... |
| US-4,841,021 |
Polypyridinium A novel class of polymers comprises one or more dipyridinium units, having the formula ##STR1## contained within the main polymer backbone where Ar.sup.1,... |
| US-4,841,020 |
Catalytic polymerization of carbon monoxide with functional substituted
ethylenically unsaturated monomer Novel copolymers and terpolymers are produced from carbon monoxide, a functionally-substituted ethylenically unsaturated compound wherein the functional... |
| US-4,841,019 |
Apparatus for producing polyarylenesulfides By the use of an apparatus for producing a polyarylenesulfide comprising a dehydrator vessel and/or a reactor vessel wherein at least liquid-contacting parts... |
| US-4,841,018 |
Catalytic preparation of poly(arylene sulfide) from halothiophenol A process for the catalytic self-condensation of halothiophenol to form a poly(arylene sulfide) is disclosed. The reaction mixture includes an alcohol solvent,... |
| US-4,841,017 |
Polyether compounds, epoxy resins and processes for production thereof Disclosed as a polyether compound having ether groups and vinyl double bonds represented by formula (I) ##STR1## and an epoxy resin represented by formula... |
| US-4,841,016 |
Polyester resin compositions An additive composition for enhancing curing and color clarity properties of polyester resins. The additive comprises from about 50 to 75 parts by weight of a... |
| US-4,841,015 |
Low plate-out polycarbonate end capped with phenoxy acetic acid Polycarbonate resins are chain-terminated with a group selected from those of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each... |
| US-4,841,014 |
Melt-processable, thermotropic, fully aromatic polyesters Thermotropic, fully aromatic polyesters, which consist essentially of (a) repeating units of the formula ##STR1## in proportions of 20 to 70 mole percent, (b)... |
| US-4,841,013 |
Preparation of poly(arylene ether ketones) Friedel Crafts preparation of arylene ether ketone polymers with an exceptionally high degree of isomeric purity and freedom from by-products can be achieved by... |
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