84 results about "Organic Boron Compounds" patented technology

A flexible intumescent seal for passive fire protection has a base material that consists of a blend comprising at least one thermoplastic polymer, expandable graphite and at least one acid generating compound. The acid generating compound is an organic boron compound and the at least one thermoplastic polymer is a vinyl polymer and/or copolymer. The seal may be formed by extrusion, drawing, molding or injection of the blend.

The invention relates to the field of olefin polymerization, in particular to a polyolefin elastomer and a preparation method thereof. The molecular weight of the polyolefin elastomer is distributed as a bimodal structure, and the preparation method includes the following steps that in an organic solvent, in the presence of a catalyst and hydrogen, the polymerization reaction of ethylene, [alpha]olefin and optional cycloolefin is conducted; the catalyst contains a main catalyst and an activator, and the activator includes one or more optional compounds containing organic boron; and the main catalyst is one or more pre-transition metal compounds or crystals thereof shown in a formula (1). According to the polyolefin elastomer and the preparation method thereof, the pre-transition metal compounds or the crystals thereof are adopted to be the main catalyst for polymerization, and the polyolefin elastomer with obvious bimodal distribution is prepared by using a catalyst system in a singlereactor.

The present invention relates to a negative photosensitive composition comprising: (A) an infrared absorber, (B) an organic boron compound which has a function as a polymerization initiator when used in combination with the infrared absorber (A), (C) an onium salt, and (D) a compound having a polymerizable unsaturated group. The use of the negative photosensitive composition of the present invention makes it possible to provide a negative photosensitive composition which is curable by infrared light and is less likely to cause polymerization inhibition due to oxygen during radical polymerization, and is also excellent in storage stability, and to provide a negative photosensitive lithographic printing plate which can directly form images by irradiation with infrared light from a solid laser or a semiconductor laser based on digital signals without preheating and shows high sensitivity, and is also excellent in printing durability and storage stability.

The invention relates to the field of catalysts, and discloses a non-metallocene compound and an ethylene-styrene copolymer, a preparation method of the non-metallocene compound and the ethylene-styrene copolymer, a catalyst composition for olefin polymerization and an application of the catalyst composition. The non-metallocene compound has the structure shown in a formula (I). The catalyst composition for olefin polymerization provided by the invention comprises a main catalyst and a cocatalyst, wherein the main catalyst is the non-metallocene compound provided by the invention, and the co-catalyst contains an aluminum-containing compound and an optional organic boron compound. The catalyst composition for olefin polymerization provided by the invention has the advantage of high catalytic activity. The catalyst composition provided by the invention can be used to catalyze the olefin polymerization of an ethylene monomer and a vinyl aromatic monomer, so that the single ethylene-styrene copolymer with relatively high content of ethylene structure units and can be obtained, and therefore, the toughness of the obtained copolymer is obviously better than the toughness of polymers in the prior art.

The invention provides a preparation method of modified phenolic resin and modified phenolic resin prepared by the preparation method. By adopting organic boron and anacardol for double modification of phenolic resin, the preparation method comprises the following steps: firstly, carrying out reaction on an organic boron compound and excessive aldehyde under an alkaline condition to generate hydroxymethylated organic boron; then adding phenol, anacardol and an acidic catalyst; carrying out reaction under an acidic condition at 90-120 DEG C for 1-6 hours; and dehydrating to obtain the modified phenolic resin. The modified phenolic resin prepared by the method has good heat resistance and toughness and low cost and further has a good environmental benefit.

The present invention relates to a method for preparing a titanium catalyst component, comprising the steps: reacting a magnesium halide in a solvent including an alcohol to obtain a homogeneous solution, reacting at least one organic boron compound with the homogeneous solution, reacting a titanium compound with the homogeneous solution, a titanium catalyst component obtainable by said method, a method for preparing a titanium catalyst and a titanium catalyst obtainable by said method.

The present invention is a silicon-containing resist underlayer film-forming composition containing at least any one of a condensation product and a hydrolysis condensation product or both of a mixture comprising: one or more kinds of a compound (A) selected from the group consisting of an organic boron compound shown by the following general formula (1) and a condensation product thereof and one or more kinds of a silicon compound (B) shown by the following general formula (2). Thereby, there can be provided a resist underlayer film applicable not only to the resist pattern formed of a hydrophilic organic compound obtained by the negative development but also to the resist pattern formed of a hydrophobic compound obtained by the conventional positive development.

R¹_m0B(OH)_m1(OR)_(3-m0-m1)  (1)

R¹⁰_m10R¹¹_m11R¹²_m12Si(OR¹³)_{(4-m10-m11-m12)}  (2)

The invention discloses a method for continuously producing 1-hexene and 1-octene, the method comprises the following steps: (1) mixing a solvent and an aluminum alkyl compound through a mixing tank, continuously introducing the mixture into a reaction kettle, introducing ethylene, and carrying out ethylene oligomerization reaction under the action of a continuously introduced catalyst to obtain a reaction solution containing 1-hexene and 1-octene; (2) a reaction solution containing 1-hexene and 1-octene enters an overflow tank reactor through an overflow pipeline; and (3) enabling the reaction liquid obtained in the overflow tank reactor to enter a quenching reactor, and quenching the reaction by using an alcohol substance as a quenching agent to obtain 1-hexene and 1-octene. The used catalyst is a solution formed by a metal chromium compound, a PNSiNP ligand and an organic boron compound. Under the condition that the reaction temperature is not changed, the overflow tank adopts a higher temperature, and a polymer from the reaction kettle can be dissolved in a reaction solution, so that the possibility of pipeline blockage is reduced, and the continuous operation time of the device is prolonged.

A polymerization initiator composition which does not burn or ignite even when it contacts paper or the like in air and can provide high polymerization activity to a polymerizable composition to cure it in a short period of time, and an adhesive composition comprising the same. The above polymerization initiator composition comprises 100 parts by weight of (A) an organic boron compound such as a trialkyl boron, alkoxyalkyl boron, dialkylborane, monocyclo or bicyclo compound having a boron atom as a hetero atom or partially oxidated trialkyl boron, 5 to 40 parts by weight of (B) an aprotic solvent having a boiling point of 50 to 120° C., and 0.2 to 5 parts by weight of (C) an alcohol having a boiling point of 60 to 180° C.

The present invention provides functional highly-isotactic polystyrene comprising repeating units having the structure of formula I, in the formula I, E is sulfur or oxygen, R1 is an alkyl group having 1-10 carbon atoms or an aryl group having 6-10 carbon atoms, R is an alkoxy group having 1-20 carbon atoms or an aryloxy having 6-20 carbon atoms, the R can substitute arbitrary position on a benzene ring; m represents the number of substituent groups R, and the m is greater than or equal to 0 and less than or equal to 4. The present invention provides a preparation method of the functional highly-isotactic polystyrene comprising the repeating units having the structure of the formula I, the method comprises polymerization of functionalized styrene to obtain the functional highly-isotactic polystyrene under the role of a catalyst, the functionalized styrene has a structure of formula II, and the catalyst comprises a rare earth complex, an organic boron compound and an organic aluminum compound. The functional highly-isotactic polystyrene has high isotactic selectivity.

The invention discloses high-performance calcium-series drawing powder comprising the following components in percentage by weight: 40-60% of stearic acid, 2-3% of organic molybdenum compound, 1-3% of melamine complex, 1.5-2.5% of organic boron compound, a proper amount of chemical additive and the balance of lime. A preparation method comprises the following steps: melting the stearic acid, then adding the lime, melamine complex, an organic molybdenum compound, an organic boron compound and the proper amount of chemical additive, continuously heating to 150-200 DEG C while stirring continuously, and reacting completely to obtain the high-performance calcium-series drawing powder. The high-performance calcium-series drawing powder is insoluble in water, good in lubricating effect and low in consumption.

A main object of the present invention is to provide an organic EL element including an electron injection and transport layer containing an organic boron compound, which has excellent characteristics such as efficiency and service life. The present invention achieves the object mentioned above by providing an organic EL element including: an anode; a light emitting layer formed on the anode; an electron injection and transport layer that is formed on the light emitting layer, contains an organic boron compound, and has a crystalline structure; and a cathode formed on the electron injection and transport layer.

It is intended to provide a method of rapid methylation of an aromatic compound or an alkenyl compound, which is capable of obtaining an aromatic compound or an alkenyl compound labeled with a methyl group or a fluoromethyl group under a mild condition rapidly in high yield using an organic boron compound whose toxicity is not so high as a substrate; a kit for preparing a PET tracer to be used in the same, and a method of producing a PET tracer using the same. In an aprotic polar solvent, methyl iodide or X—CH2F (wherein X is a functional group which can be easily released as an anion), an organic boron compound in which an aromatic ring or an alkenyl group is attached to boron are subjected to cross-coupling in the presence of a palladium(0) complex, a phosphine ligand, and a base.

An organic boron compound effective for constituting a functional layer in an organic luminescence device is represented by formula (1) below: wherein Ar1 denotes an optionally substituted aryl group or heterocyclic group; R1-R11 independently denote hydrogen, halogen, alkyl, alkenyl, amino, alkoxy, formyl, nitrile, aroyl, alkyloyl, aryl, aralkyl or heterocyclic group, each optionally substituted with the proviso that an adjacent one or more pairs of R1-R11 can form a condensed ring. The organic boron compound can be produced through a process including (A) a step of reacting an aromatic ketone compound X with an aromatic ketone compound or an aromatic aldehyde compound in the presence of ammonium chloride, and (B) a step of reacting a product of the step (A) with an aromatic boric acid compound.

The invention provides application of Lewis base, a sorbate polymer and a derivative of the sorbate polymer, belonging to the technical field of catalysts. According to the invention, azacyclo-olefin with a structure as shown in a formula I or a formula II is high in nucleophilicity, and the initiation efficiency and the polymerization activity of polymerization of an (E,E)-sorbate monomer can be improved; the steric hindrance and acidity of an organic aluminum compound are appropriate, back biting and inactivation of chains in the polymerization process of the (E,E)-sorbate monomer are avoided, the lewis base and lewis acid (the organic aluminum compound and/or an organic boron compound) are used in cooperation to serve as a polymerization catalyst of the (E,E)-sorbate, 1,4-selective addition polymerization reaction can be achieved 100% at a room temperature, and initiation efficiency is high.