[Problem] The purpose of the present invention is to obtain a multifunctional (meth)acrylate with good yield by an ester exchange reaction of a polyhydric alcohol such as pentaerythritol or dipentaerythritol with a monofunctional (meth)acrylate. [Solution] A multifunctional (meth)acrylate manufacturing method characterized in that when manufacturing a multifunctional (meth)acrylate by an ester exchange reaction of a polyhydric alcohol with a monofunctional (meth)acrylate, catalyst (A) and catalyst (B) are used together. Catalyst (A): One or more kinds of compounds selected from a group consisting of cyclic tertiary amines with an azabicyclo structure or salts or complexes thereof, amidines or salts or complexes thereof, and compounds with a pyridine ring or salts or complexes thereof. Catalyst (B): One or more kinds of compounds selected from a group consisting of zinc-containing compounds.

Continuity compositions are provided as are methods of their preparation. The compositions comprise metal carboxylate salts and fatty amines and find advantageous use in olefin polymerization processes.

This application is in the field of technologies for desulfurization and demercaptanization of gaseous hydrocarbons. The device includes a catalytic reactor loaded with a catalyst solution in an organic solvent, a means of withdrawal sulfur solution from the reactor into the sulfur-separating unit, and a sulfur-separating unit. The said device has at least means of supplying gaseous hydrocarbon medium to be purified and oxygen-containing gas into the reactor, and a means of outletting the purified gas from the reactor. The sulfur-separation unit includes a means of sulfur extraction. The reactor design and the catalyst composition provide conversion of at least 99.99% of hydrogen sulfide and mercaptans into sulfur and disulfides. The catalyst is composed of mixed-ligand complexes of transition metals. The technical result achieved by use of claimed invention is single-stage purification of gaseous hydrocarbons from hydrogen sulfide and mercaptans with remaining concentration of SH down up to 0.001 ppm.

The present disclosure concerns embodiments of a catalyst system, such as a mixed catalyst composition, that can be used to make biofuel. In some embodiments, the mixed catalyst composition can comprise an inorganic catalyst and an organic catalyst, such as a cyclic organic catalyst. In particular disclosed embodiments, a mixed catalyst composition comprising, consisting essentially of, or consisting of an inorganic catalyst and an organic catalyst can be used to enhance the production of biofuel, such as biodiesel, by reducing the amount of time needed to make the biofuel as compared to that needed for the inorganic catalyst or the organic catalyst independently. Also disclosed herein are combinations and kits comprising, consisting essentially of, or consisting of embodiments of a mixed catalyst composition.

Disclosed herein is a simple process for functionalization/grafting of carbon microspheres obtained from bagasse with various active functional groups onto it and use of the same as catalyst for various organic reactions, having very high selectivity and conversion rate.

The precursor of a hydroprocessing catalyst is made by impregnating a metal oxide component comprising at least one metal from Group 6 of the Periodic Table and at least one metal from Groups 8-10 of the Periodic Table with an amide formed from a first organic compound containing at least one amine group, and a second organic compound containing at least one carboxylic acid group. Following impregnation heat treatment follows to form in situ generated unsaturation additional to that in the two organic compounds. The catalyst precursor is sulfided to form an active, sulfide hydroprocessing catalyst.

A catalyst composition for hydrogenation including (A) to (D), in which a mass ratio ((C)/(A)) is 0.1 to 4.0 and a mass ratio ((D)/(A)) is 0.01 to 1.00, (A): a titanocene compound represented by formula (1), ##STR00001## (wherein R.sup.5 and R.sup.6 are any group selected from hydrogen, a hydrocarbon group having 1 to 12 carbon atoms, an aryloxy group, an alkoxy group, a halogen group, and a carbonyl group. R.sup.1 and R.sup.2 are any group selected from the group consisting of hydrogen and a hydrocarbon group having 1 to 12 carbon atoms, and R.sup.1 and R.sup.2 are not all hydrogen atoms or all a hydrocarbon group having 1 to 12 carbon atoms), (B): a reductant formed from a compound containing an element selected from the elements Li, Na, K, Mg, Zn, Al, and Ca, (C): an unsaturated compound having a molecular weight of 400 or less, and (D): a polar compound.

The present technology provides an adhesive composition containing a urethane prepolymer (UP), plural types of carbon blacks (CB), calcium carbonate, aliphatic isocyanate, a metal catalyst, and an amine catalyst, wherein first and second CBs have dibutyl phthalate oil absorptions of from 23 to 40 cm.sup.3/100 g and from 85 to 120 cm.sup.3/100 g, respectively; contents 1 and 2 of the first and second CBs are respectively not less than 25 parts by mass and not less than 9 parts by mass per 100 parts by mass of the UP; a content of the calcium carbonate is from 5 to 30 parts by mass per 100 parts by mass of the UP, and from 5 to 50 parts by mass per 100 parts by mass of a sum of the contents 1 and 2.

The present invention disclosed a microcapsule modified with nanomaterial for controlled release of active agent comprising; a core comprising active agent and said polymer shell encompassing said core; characterized in that said polymer shell is made up of polymer nanocomposite and a process for the preparation thereof.

A catalyst composition comprises an inert hydrocarbon solvent, having dissolved therein a titanate of the formula Ti(OR).sub.4 wherein each R is the same or different, and is a hydrocarbon residue, and an organic aluminum compound, wherein a molar ratio of the organic aluminum compound and any alkene present in the catalyst composition is greater than one.