Abstract: This invention relates to stable liquid biuret modified toluene diisocyanates, prepolymers thereof, stable liquid biuret allophanate modified toluene diisocyanates, prepolymers thereof, and to processes for the preparation of these compositions. The stable liquid biuret modified toluene diisocyanates comprise a secondary amine based biuret modified TDI having an NCO group content of about 12 to about 46% by weight.

Abstract: The present invention provides ester group-containing tertiary amine compounds of the formula (R1OCH2CH2)nN(CH2CH2CO2R2)3-n which, when used as additives in chemical amplification photolithography, can yield photoresists having a high resolution and an excellent focus margin. The present invention also provides a process comprising the step of subjecting a primary or secondary amine compound to Michael addition to an acrylic ester compound; a process comprising the steps of subjecting monoethanolamine or diethanolamine to Michael addition to an acrylic ester compound so as to form an ester group-containing amine compound and introducing a R1 group to the resultant ester group-containing amine compound; and a process comprising the step of effecting the ester exchange reaction of an ester group-containing tertiary amine with R2OH.

Abstract: The present invention relates to a process for producing a metal oxide catalyst which is suitable for production of acrylic acid or acrylonitrile in one stage by a catalytic oxidation reaction of propane in a high yield. The present invention is characterized by using a fine particle of metallic tellurium obtained by reducing a Te compound with a reductant as a raw material for producing an oxide catalyst including metal elements Mo—V—Nb—Te. The fine particle of metallic tellurium is preferably one containing primary particles having a particle size of not more than 4.0 ?m. By using a metal oxide obtained by the process of the present invention, acrylic acid can be produced from propane by a one-stage oxidation reaction in a higher yield not less than 40%.

Abstract: The present invention relates to series of compounds with aqueous metal decontamination activity and their uses in removing metals from aqueous media. The compounds are esters of organic acids or alcohols with polyols that contain a sulfhydral group (—SH). The compounds release sulfhydral slowly into the water providing activity over extended periods of time and exhibit biodegradable characteristics. The compounds may be used to remediate aqueous media.

Abstract: A process for continuously preparing a compound which bears at least two functional groups which are each independently selected from the group consisting of nitrile group, carboxylic acid group, carboxylic ester group and carboxamide group.

Abstract: A process for working up ?-sulfatoethylsulfonylaniline-2-sulfonic acid from a solution in aqueous sulfuric acid, comprises a first step of the ?-sulfatoethylsulfonylaniline-2-sulfonic acid being precipitated by addition of alkali or alkaline earth metal and/or ammonium salts, separated off and dissolved or the sulfuric acid being precipitated by addition of calcium salts and the resulting calcium sulfate being separated off if appropriate, and a second step of the resultant solution being adjusted to a pH between 1 and 5 by addition of alkali or alkaline earth metal or ammonium hydroxide, carbonate, bicarbonate and/or acetate, any calcium sulfate still present being separated off and the ?-sulfatoethylsulfonylaniline-2-sulfonic acid being isolated from the solution.

Abstract: Organic amine salts of compounds of the formula: and their pharmaceutically acceptable salts, and uses in medical therapy are provided.

Abstract: The present invention relates to a tetrafluorobenzyl derivative and a pharmaceutical composition for prevention and treatment of acute and chronic neurodegenerative disease in central nervous system and ophthalmic diseases containing the same. The tetrafluorobenzyl derivative of the present invention can effectively be used to prevent and treat chronic neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and Huntington's disease, degenerative brain disease such as epilepsy and ischemic brain disease such as stroke.

Abstract: Methods for purifying a p,p-bisphenol A generally include distilling a feed stream comprising p,p-BPA in a distillation column at a pressure less than or equal to 20 millibars. The distillation column separates the bisphenol feed stream to produce a light fraction, an intermediate fraction and a heavy fraction. The intermediate fraction comprising the purified bisphenol contains lesser impurities that the p,p-BPA in the feed stream. In one embodiment, the intermediate stream is recovered using a side-draw. The side-draw is located between a first zone and a third zone in the distillation column.

Abstract: A catalyst composition and its use for the selective oxidation of ethane to acetic acid and/or for the selective oxidation of ethylene to acetic acid. The composition includes in combination with oxygen the elements molybdenum, vanadium, niobium, gold in the absence of palladium according to the empirical formula MoaWbAucVdNbeZf, wherein Z is one or more elements selected from B, Al, Ga, In, Ge, Sn, Pb, Sb, Cu, Pt, Ag, Fe and Re, and a, b, c, d, e and f represent the gram atom ratios of the elements such that: 0<a?1; 0?b<1 and a+b=1; 10?5?c?0.02; 0<d?2; 0<e?1; and 0.0001?f?0.05.

Abstract: The present invention relates to a method for producing a saturated organic compound bearing at least one functional group from a mixture which comprises this saturated organic compound containing at least one functional group and also one or more other organic compounds, which comprises i) mixing a silver-ion-loaded ion exchanger with the mixture at a temperature which is below the boiling point of the mixture, ii) then removing the supernatant and iii) detaching the ion-exchanger-bound, saturated organic compound having at least one functional group from the ion exchanger.

Abstract: It is an object of the present invention to provide a vinyl ether group-containing, (meth)acrylic ester, which has both radical polymerizability and cation polymerizability, improved in storage stability and stability in handling without impairing its polymerizability or, in other words, provide a stabilized vinyl ether group-containing (meth)acrylic ester. Another object is to provide a method of producing a stabilized vinyl ether group-containing (meth)acrylic ester composition. A further object is to provide a method of stably handing, a method of economically and stably producing and a method of purifying a vinyl ether group-containing (meth)acrylic ester.

Abstract: In the stopping and starting operations of a distillation column used for producing (meth)acrylic acids according to the present invention, upon stopping the operation of the distillation column, the heating of a reboiler attached thereto is interrupted and then the reboiler is rapidly cooled; and/or upon starting the operation of the distillation column for production of the (meth)acrylic acids, an inner wall surface of the distillation column is heated to a temperature higher than a condensation temperature of the (meth)acrylic acids and the operation of the distillation column is started under the heated condition. According to the present invention, it is possible to early and safely stop the operation of the distillation column while preventing the occurrence of polymerization within the distillation column, and stably perform an operation for distillation of acrylic monomers for a long period of time.

Abstract: A process for the preparation of gabapentin comprising the passage of a salt of the same through a ionic exchange resin of strong cationic type, the elution of the gabapentin which has fixed onto the column and the crystallization from organic solvent, characterized in that the resin is regenerated by using a mineral acid in a molar quantity between 50 and 90%, is described.

Abstract: Agents useful for the treatment of various metabolic disorders, such as insulin resistance syndrome, diabetes, hyper-lipidemia, fatty liver disease, cachexia, obesity, atherosclerosis and arteriosclerosis are disclosed.

Abstract: In this invention, a process of thermal degradation of biodegradable bacterial polyesters poly(hydroxyalkanoate)s (PHAs) to lower molecular weight PHAs in controllable manner has been developed. The process involves using at least one additional component to ‘dilute’ the PHAs in the thermal degradation process, so that the process can be controlled in the senses of better heat transfer, better stirring, easier working up after the reaction. The relationship of processing time and the molecular weights of the products at a certain temperature was obtained so that it is possible to obtain the desired molecular weight products in the real production under the guidance of the relationship.

Abstract: Mixtures of terephthalate diesters having lowered freezing points and methods of making the terephthalic acid diesters. The method includes contacting a first alcohol, a second different alcohol and dimethyl terephthalate in the presence of a catalyst to thereby form the terephthalate diesters.

Abstract: A process for obtaining vinyl compounds by dehalogenation of halofluorinated compounds with aromatic substituents, having formula: T-Ar—(O)y—CFX?—CF2X???(I) wherein: X?=F, Cl, Br, I; X?=Cl, Br, I; y=0,1; when y=0 X??F; T=H, —(O)y—CFX?—CF2X?, wherein y, X? and X? are as above; Ar is a monocyclic, bicyclic or tricyclic bivalent aromatic radical from 6 to 14 carbon atoms, optionally containing heteroatoms, or Ar is formed of two aromatic rings linked by a bivalent radical; said process characterized in that the halofluorinated compounds are dehalogenated in the presence of a transition metal, by operating in a biphasic system of solvents immiscible among each other, formed of a (per)fluorinated solvent and a dipolar aprotic or protic solvent (co-solvent), wherein the ratio moles co-solvent/equivalents of the halofluorinated compound with aromatic substituents ranges from 0.5 to 10.

Abstract: Isocyanates are prepared by a process in which a product stream from the isocyanate synthesis is purified.

Abstract: The invention relates to radically copolymerizable acetophenone or benzophenone derivatives, obtained by reaction of a) (meth)acrylic compounds exhibiting at least one isocyanate-reactive group [compounds a)] with b) compounds exhibiting at least two isocyanate groups [compounds b)] and c) acetophenone or benzophenone derivatives exhibiting at least one isocyanate-reactive group [compounds c)]. The invention also relates to copolymers that contain copolymerizable photoinitiators of the invention and to the use of said copolymers in UV-crosslinkable compositions, particularly hot-melt adhesives.