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| Patent # | Description |
|---|---|
| US-4,672,137 |
Preparation of 1,3-di(alkoxycarbonylamino)propanes 1,3-Di(alkoxycarbonylamino)propanes of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 can be identical or different and each is hydrogen,... |
| US-4,672,136 |
Monoadduct monomers and polyadduct polymers from divinyl ketones Included are monoadduct monomers made from divinyl ketones wherein only one vinyl bond therein has added to it a nucleophilic precursor. Nucleophilic precursors... |
| US-4,672,135 |
Catalytic process for producing silahydrocarbons Silahydrocarbons such as tetraorganosilanes prepared from halo-substituted silanes and an organomagnesium compound in the presence of a catalytically effective... |
| US-4,672,134 |
Novel oxirane intermediates for fungicidally active substituted
1-hydroxyethyl-triazolyl derivatives Oxiranes of the formula: ##STR1## in which R is ##STR2## R.sup.1 is hydrogen or halogen, R.sup.2 is halogen, R.sup.3 is alkyl with 1 to 4 carbon atoms... |
| US-4,672,133 |
Process for forming Form 2 ranitidine hydrochloride A novel crystal form of ranitidine (N-[2-[[[5-(dimethylamino)methyl]-2-furanyl]methyl]thio]ethyl-N'-methyl-2- nitro-1,1-ethenediamine) hydrochloride, designated... |
| US-4,672,132 |
Process for producing an aldehydelactone A process for producing 3-oxo-6-formyl-2-oxabicyclo[3.3.0]-6-octene useful as an intermediate for producing prostaglandins, via a few steps from raw materials... |
| US-4,672,131 |
Compounds and methods useful for the synthesis of thromboxane A.sub.2 Compounds having the structure: ##STR1## wherein X may be hydrogen, bromine, chlorine, fluorine or iodine are provided, together with methods for... |
| US-4,672,130 |
Process of making xenorhabdin antibiotics The new 1,2-dithiolo[4,3-b]pyrrole derivatives (also designated as Xenorhabdins) are antibiotics and pesticides. Their bio-syntheses from Xenorhabdus nemtophilus... |
| US-4,672,129 |
Process for preparing substituted anthra[1,9-cd]pyrazol-6(2H)-ones An improved process for producing anthra[1,9-cd]-pyrazol-6(2H)-ones from 1,4-dichloro-5,8-disubstituted 9,10-anthracenediones. The process produces higher yields... |
| US-4,672,128 |
Preparation of imidazole-4(5)-monocarboxylic acids and their salts or
betaines Imidazole-4(5)-monocarboxylic acids and their salts or betaines are prepared by reacting an imidazole with carbon dioxide and an alkali metal carbonate, an... |
| US-4,672,127 |
Process for production of hydantoin derivatives Hydantoin derivatives are industrially advantageously produced at a high yield by reacting hydantoin with carbonyl compounds in the presence of (i) amino acids... |
| US-4,672,126 |
Process for isolating levamisole from tetramisole A process for isolating levamisole or a therapeutically acceptable acid addition salt thereof from tetramisole or an acid addition salt thereof by precipitating... |
| US-4,672,125 |
Chlorination of .beta.-methylpyridine compounds A method is disclosed for preparing a chlorinated .beta.-methylpyridine by chlorinating a .beta.-methylpyridine compound with PCl.sub.5 in the presence of... |
| US-4,672,124 |
Chemical agents New chemical compounds, bis quaternary carbamates, having the generic fora: ##STR1## wherein X is one equivalent of an anion selected from monovalent or ... |
| US-4,672,123 |
Chemical agents New chemical compounds having the generic formula: ##STR1## wherein X is one equivalent of an anion selected from monovalent and pollent anions, and R,R'... |
| US-4,672,122 |
Chemical agents New chemical compounds having the generic formula: ##STR1## wherein X is one equivalent of a monovalent or polyvalent anion; R and R' re methyl or ethyl... |
| US-4,672,121 |
Preparation of 4-substituted pyridines using quaternary pyridine salts A process for preparing a 4-substituted pyridine product from a starting pyridine substituted in the 4-position by a leaving group susceptible to nucleophilic... |
| US-4,672,120 |
Chemical agents New chemical compounds having the generic formula: ##STR1## wherein X is one-equivalent of an anion selected from the group consisting f monovalent and... |
| US-4,672,119 |
Chemical agents New chemical compounds, bis quaternary carbamates, having the generic fora: ##STR1## wherein NRR.sub.1 R.sub.2 is a radical selected from the group... |
| US-4,672,118 |
N-(hydrophobe aromatic)pyridinium compounds Corrosion of metal surfaces in contact with an aqueous medium is inhibited by incorporating a N-(hydrophobe aromatic)pyridinium compound such as ... |
| US-4,672,117 |
Antipsychotic gamma-carbolines The compounds: ##STR1## in which R.sup.1 is hydrogen, halogen, hydroxy, or alkyl; R.sup.2 is substituted or unsubstituted pyridinyl, pyrazinyl, quinolinyl or ... |
| US-4,672,116 |
Substituted 5,6-dialkoxyquinazoline derivatives Quinazoline derivatives having an oxy substituent in 5 and 6 positions are described. The novel quinazoline derivatives are useful as cardiotonic agents. |
| US-4,672,115 |
Process for preparing aminoacyllabdanes Novel aminoacyllabdanes, intermediates and processes for the preparation thereof, and methods for reducing intraocular pressure utilizing compounds or... |
| US-4,672,114 |
Process for the preparation of pure 6-.beta.-halopenicillanic acids and
salts thereof This invention relates to penicillanic acid derivatives of the formula I ##STR1## in which X stands for chlorine, bromine or iodine, to pharmaceutically ... |
| US-4,672,113 |
Process for purifying aqueous distillation residues during the treatment
of liquids in the preparation of... Disclosed is a process for the purification treatment of liquid reaction and/or washing media obtained in the preparation of cellulose ethers which comprises... |
| US-4,672,112 |
.beta.-Cyclodextrine complex of benzene sulphonyl urea derivatives A new and improved herbicidal and plant growth regulating composition, and the method of manufacturing that composition. The new complex composition of the... |
| US-4,672,111 |
5-azido-deoxyuridine compounds and method of synthesis of the same 5-azido-2-'-deoxyuridine nucleoside and nucleotide compounds and a method of producing them. The method involves reacting a 5'-deoxyuridine compound with... |
| US-4,672,110 |
Method of deprotecting polynucleotide trimethylethyl phosphotriesters Oligonucleotides protected by trihalomethylethyl phosphotriester groups are deprotected by reaction with tributylphosphine or phosphoramadite. The deprotection... |
| US-4,672,109 |
Method for selective methylation of erythromycin A derivatives A method for the selective methylation of a hydroxy group at the 6-position of an erythromycin A derivative which comprises converting an erythromycin A... |
| US-4,672,108 |
Crystalline human leukocyte interferon The crystallization of human leukocyte interferon is described. In a preferred embodiment crystalline recombinant human leukocyte interferon A (IFL-rA) is prepared. |
| US-4,672,107 |
Cell growth inhibitor and method A cell growth inhibitor consisting essentially of a peptide substantially free of cytotoxins and containing an amino acid sequence of ... |
| US-4,672,106 |
Muramylpeptide active ester derivatives Muramylpeptide active ester derivatives represented by the formula: ##STR1## wherein R.sub.1 represents a hydrogen atom or a fatty acid residue having from... |
| US-4,672,105 |
Method for preparing esters of acrylic acid and methacrylic acid by
transesterification A method for preparing an ester of (meth)acrylic acid with a polyhydric alcohol comprising, transesterifying a (meth)acrylic acid ester derived from an alcohol... |
| US-4,672,104 |
Two stage polybenzimidazole process and product A two stage process for the production of polybenzimidazoles is provided wherein an aromatic tetraamine, e.g., 3,3',4,4'-tetraaminobiphenyl, is reacted with a... |
| US-4,672,103 |
Non-sintering epoxy resins prepared from triglycidyl ethers and
epihalohydrins Solid non-sintering epoxy resin products are prepared by reacting a trihydric phenol such as 1,1,1-tri(hydroxyphenyl)methane with an epihalohydrin such as... |
| US-4,672,102 |
Polyhydroxy ethers containing spirobiindanols Polyhydroxy ethers containing spirobiinadanols are tough, soluble thermoplastics with high heat distortion temperatures relative to bisphenol A based materials.... |
| US-4,672,101 |
Polyepoxy aromatic hydantoins A composition comprising a polyepoxy aromatic hydantoin having epoxy functionality on the aromatic and the hydantoin rings. |
| US-4,672,100 |
Chemically hardening two-component materials based on polyurethanes,
method of production and use A chemically-hardening two-component material based on polyurethane is provided, having a first component being a prepolymer with isocyanate end groups and a... |
| US-4,672,099 |
Soluble polyimide-siloxane precursor, process for producing same and
cross-linked polyimide-siloxane A novel soluble polyimide-siloxane precursor having a good storage stability in solution and forming a superior coating on silicon wafer, glass, etc. under... |
| US-4,672,098 |
Bicyclic acrylic monomers Disclosed are bicyclic acrylic monomers, and polymers and copolymers derived therefrom. |
| US-4,672,097 |
Process and system for preparing random copolymers having low vinyl
contents A process is disclosed herein for preparing randomized copolymers of conjugated dienes and vinyl aromatic hydrocarbons having low vinyl contents by utilizing an... |
| US-4,672,096 |
Catalyst composition for polymerizing alpha-olefins A catalyst composition for polymerizing alpha-olefins is prepared by treating a carrier containing OH groups with an organomagnesium composition and contacting... |
| US-4,672,095 |
Process for producing vinyl polymer A process for producing a vinyl chloride polymer, which comprises dissolving a thermoplastic polyurethane soluble in a vinyl chloride monomer in the vinyl... |
| US-4,672,094 |
Method for increasing the molecular weight of polyamides and
polyesteramides A process is described for increasing the molecular weights of thermoplastic polyamides and polyesteramides by fluxing and homogenizing the subject polymers... |
| US-4,672,093 |
Substituted acetylenic polymers and conductive materials formed therefrom A novel route to the manufacture of substituted polyacetylenes is disclosed in which polyacetylene is first reduced to render it n-type conductor and then... |
| US-4,672,092 |
Epoxide resin compositions Curable epoxide resin compositions having improved mechanical and fire-resistant properties comprise an epoxide resin adducted with an elastomer polymer... |
| US-4,672,091 |
Thermoplastic elastomer blends containing ethylene-propylene
thermoplastic block copolymer elastomers Disclosed are stabilized blends comprising (1) from about 55% to about 90% of at least one high molecular weight C.sub.2 -C.sub.3 block copolymer elastomer, (2)... |
| US-4,672,090 |
Surfactant system for emulsion polymers The instant invention is directed to a surfactant system for use in manufacturing water-in-oil emulsions of water-soluble polymers made from ethylenically... |
| US-4,672,089 |
Retroreflective sheeting A retroreflective relatively flexible laminate sheet construction has a thermoplastic web with a smooth light-receiving first side and a second side coextensive... |
| US-4,672,088 |
Stabilized thermoplastic polymer compositions comprising a C-nitroso
compound Thermoplastic polymers are stabilized by mixing therewith, under polymer processing conditions such that nitroxyl radicals are formed, a nitrogen stabilizers... |
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