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JPH0150230B2 |
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JPH0149714B2 |
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JPH0149713B2 |
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JPH0149352B2 |
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JPH0147474B2 |
1. A process for the continuous manufacture of trioxane, optionally together with cyclic formals, from aqueous formaldehyde solutions containing optionally at least one diol and/or at least one epoxide, in the presence of acidic catalyst...
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JPH0136475B2 |
Process for the preparation of macrocyclic polyethers by reacting a sulphonyl halide in the presence of a base and a halogen-containng solvent, preferably chlorobenzene, with a glycol of the formula:- wherein x is an integer from 1 to 9 ...
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JPH01186880A |
PURPOSE: To obtain the title composition, containing trioxane as an active ingredient and a higher fatty acid salt, etc., and readily moldable into granules without closely sticking to an apparatus will and consolidating in storing the g...
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JPH01172381A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPH0131512B2 |
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JPH01151574A |
Substituted phenols and phenyl carbonates derived therefrom, such as 2,4-dinitrophenol and 2,4-dinitrophenyl carbonate, are employed to inhibit the formation of linear polycarbonates from cyclic polycarbonate oligomers. Inhibition of pol...
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JPH01501618A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPH0124824B2 |
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JPH0118914B2 |
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JPS6452770A |
PURPOSE: To increase the thermal stability of a mixture of cyclic carbonate oligomers and furthermore to stabilize the viscosity of the oligomers not so as to disturb an initiator to be used when polymerizing them by treating the organic...
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JPS6411635B2 |
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JPS6411634B2 |
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JPS6411024B2 |
1. A process for the purification of trioxane, which has been prepared by acid-catalyzed trimerization of formaldehyde, extracting the trioxane from the resulting aqueous trioxane solution with a halohydrocarbon, optionally washing the e...
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JPS6411025B2 |
PURPOSE:To produce trioxane useful as a starting material of polyoxymethylene, in high efficiency, by contacting formaldehyde with a macronetwork cation exchange resin having sulfonic acid group. CONSTITUTION:The objective trioxane can b...
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JPS6410513B2 |
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JPS647994B2 |
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JPS646758A |
PURPOSE: To quickly and accurately detect an electrolyte contained in an aqueous inspection sample by using chromogen hemispherand having a specific structure. CONSTITUTION: An electrolyte contained in an aqueous inspection sample can be...
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JPS641478B2 |
Complexes of enterochelin, and certain analogues thereof, with one of the metals indium and scandium are useful for the treatment of bacterial infections.The complexes are prepared by the reaction in a suitable mutual solvent of enteroch...
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JPS643142A |
NEW MATERIAL:The 2-halomethyl-3,5-dioxaalkene of formula I (X is Cl, Br or I; Y is 1W10C alkyl). EXAMPLE: 2-Chloromethyl-3,5-dioxahexene. USE: Useful as an electrophilic acetonylation agent for a wide variety of compound containing activ...
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JPS63270677A |
New C-substituted crown ethers such as are made by reacting a 1,2-diol (chain length m + 4) with ClCH2-(CH2-O-CH2-)n+1CH2Cl. These compounds have a stronger affinity for secondary amines than for tertiary amines and therefore may be used...
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JPS6351502B2 |
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JPS6347712B2 |
Cyclical polyethers having amphiphile groups are derived from the tetramer of epichlorhydrin. These are useful in the solubiliization of various products.
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JPS6345750B2 |
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JPS6345751B2 |
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JPS6344153B2 |
Tensio-active cyclic polyethers of the general formula: (I) where A refers to a hydrophile block chosen from the amine, ammonium, ammonio alkyl carboxylate, ammonio alkyl sulfonate, amide, sulfonamide, ether, thioether, hydroxyl, ester a...
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JPS6340791B2 |
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JPS6338028B2 |
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JPS6337110B2 |
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JPS6337109B2 |
A method for synthesizing trioxane by heating and reacting an aqueous formaldehyde solution in the presence of a heteropolyacid. As the heteropolyacid, there is preferably used one that contains, as a coordinating element or coordinating...
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JPS63169549A |
PURPOSE: To prevent a sodium sensitive electrode from being affected by lipophilic anion by dispersing a specific amt. of sodium ion sensitive bis(1,2- crown-4), plasticizer, etc., in PVC. CONSTITUTION: A sensitive film 1 is constituted ...
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JPS63130591A |
A thermoplastic polyester-carbonate resin containing in the polymer chain, divalent moieties of the formula:- wherein R represents aliphatic hydrocarbyl of from 1 to 9 carbon atoms, inclusive, halogen substituted aliphatic hydrocarbyl of...
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JPS6388172A |
Cyclic heterocarbonates containing linkages such as ester, urethane, imide, ether sulfone, ether ketone or amide may be prepared from the corresponding bishaloformates. They may be converted to linear copolycarbonates.
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JPS6317073B2 |
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JPS639503B2 |
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JPS638946B2 |
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JPS6314780A |
NEW MATERIAL:A crown ether-linked large ring polyamine expressed by formula I (n is 4 or 5) and salt thereof. EXAMPLE: 15-(1',4',7',10',13',16'-Hexazacyclooctadecan-1'-yl)methyl-1
,4,7,10,13-pen taoxabenzocyclopentadecane. USE: A bifunct...
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JPS62286987A |
PURPOSE: To produce the titled compound useful as solvent, raw material for polymer, etc., relatively safely and easily without using hazardous raw material, by reacting a specific oxirane with a specific lactone in the presence of a cat...
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JPS6254104B2 |
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JPS6252751B2 |
A novel complex of 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6) and dimethylcarbonate or dimethyloxalate, containing one molecule of dimethylcarbonate or dimethyloxalate for each molecule of 18-crown-6, is useful in isolating 18-cr...
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JPS6246548B2 |
Novel complexes of macrocyclic polyethers such as 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6) and disulfonates of the formula I I wherein X represents barium or strontium and R1 is an alkylene moiety, optionally substituted with a...
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JPS62205086A |
NEW MATERIAL:The compound of formula I. Description: white powder, molecular weight: 695, melting point: 182W184°C. USE: An ion-electrode sensor for lithium ion. It shows high selectively to Li+. PREPARATION: Monensin of formula II is c...
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JPS62181281A |
1. Compounds of the formula see diagramm : EP0216731,P12,F1 wherein R1 represents hydrogen or hydroxy and R2 represents hydroxy or beta-glucopyranosyloxy and, if R1 represents hydroxy, the C-22 atom has the S-configuration, solvates and ...
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JPS62175478A |
PURPOSE: To suppress formation of a very small amount of a polymer occurring in storing or transportation of a trioxan monomer and to stabilize trioxan so as not to have a bad influence on polymerization reaction, by using a noncyclic et...
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JPS62156125A |
A composition comprising a cyclic oligomer of the formula Ia. Ib. wherein X is selected from the group consisting of alkylene of two to twelve carbon atoms, inclusive, alkylidene of one to twelve carbon atoms, inclusive, cycloalkylene of...
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JPS6223749B2 |
Novel cyclic and acyclic phenylene substituted dialkyl peroxides, most of which are in an acyclic polymeric form, useful as polyethylene cross-linking agents.
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JPS6256485A |
NEW MATERIAL:A compound expressed by formula I [R1WR3 are H, 1W20C alkyl or aromatic ring-containing group; R4 is formula II, III or IV (X is electron attractive group; l is 1 or 2; m and n are integers ≤3)]. EXAMPLE: 6-Octyl-6-(2'-hyd...
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