22 results about "Alicyclic compound" patented technology

Provided are a cycloolefin polymer simultaneously having a high refractive index, a low Abbe number, and low birefringence and also a method of producing this cycloolefin polymer and an optical element in which this cycloolefin polymer is used. The cycloolefin polymer is a polymer, or hydrogenated product thereof, said polymer comprising a structural unit derived from a naphthyl group-containing alicyclic compound (A) represented by following formula (1), in a specific proportion. In formula (1), one of R2a to R5a is a naphthyl group and remaining groups among R2a to R5a and R1a are as defined in the specification.

The invention relates to temperature control in the preparation of alicyclic polycarboxylic acids and esters thereof. The invention belongs to the technical field of preparation of alicyclic compounds by cyclohydrogenation of aromatic compounds. The present invention provides a process for the preparation of alicyclic compounds, preferably alicyclic carboxylic acids and esters thereof, as well as an apparatus for carrying out the process.

The application provides a high-toughness methyl silicone resin and a preparation method thereof. The high-toughness methyl silicone resin comprises the following raw materials in parts by mass: 100 parts of methyltrimethoxysilane; 18-24 parts of dimethyldimethoxysilane; 10-12 parts of a polyhydroxy steric-modified agent; 20-26 parts of water; 36-44 parts of an organic solvent; 0.1-0.3 parts of a titanate catalyst; and 0.1-0.3 parts of an organic tin catalyst. The polyhydroxy steric-modified agent is a topological structure compound containing at least two active hydroxyl groups, which is prepared by an addition reaction of a multifunctional aliphatic polyol and an unsaturated bridged cyclic alicyclic compound under the catalysis of a Lewis acid, and the active hydroxyl group content of the topological structure compound is 3.5-4 mmol / g. The high-toughness methyl silicone resin is applied in the preparation of a flexible sealing material or a heat-resistant coating material for a heating pipe.

Chemically amplified (CA) positive resist compositions are described which are comprised of the following solid components: Component (1) a PAG having structure (I); Component (2) a hydroxybenzoic acid having structure (II); Component (3) a trialkyl amine quencher having structure (III); Component (4) an adhesion promoter which is an aryl-1H-tetrazole-5-thiol derivative having structure (IV); Component (5) a polymer comprising a reaction product formed by reacting without acid catalyst, (i) a Novolak; (ii) a polymer comprising hydroxystyrene and methacrylate and / or methacrylate protected by a high activation energy acid labile group, and a vinyl ether or a heteroalicylic; Component (6) a polymer comprising structure (V); and Component (7) a Novolak polymer. Also described, is the use of these resist composition in a method for forming a photoresist relief image on a substrate.

The invention relates to a solar cell, a photovoltaic module, a photovoltaic system, a power utilization device and a power generation device, and the solar cell comprises a perovskite material layer, and meets at least one of the following conditions: at least one side surface of the perovskite material layer is provided with a passivation layer, and the passivation layer comprises a passivation material; the perovskite material layer comprises a passivation material; the passivation material comprises an organic ammonium salt formed by a nitrogen-containing organic compound and an acid compound, wherein the nitrogen-containing organic compound comprises at least one of substituted or unsubstituted nitrogen-containing chain heteroalkane with the carbon atom number of 3-15, substituted or unsubstituted nitrogen-containing lipid heterocyclic compound with the ring-forming atom number of 5-15 and substituted or unsubstituted heteroarane with the ring-forming atom number of 5-15; wherein the ring-forming atoms in the heteroarane comprise at least one of oxygen atoms and sulfur atoms and nitrogen atoms, and the ring-forming atoms in the nitrogen-containing lipid heterocyclic compound comprise at least one of oxygen atoms and sulfur atoms and nitrogen atoms. The solar cell has excellent photoelectric conversion efficiency and stability.

The invention provides high-toughness methyl silicone resin and a preparation method thereof. The high-toughness methyl silicone resin comprises the following raw materials in parts by mass: 100 parts of methyltrimethoxysilane; 18 to 24 parts of dimethyl dimethoxy silane; 10 to 12 parts of a polyhydroxy steric hindrance modifier; 20 to 26 parts of water; 36-44 parts of an organic solvent; 0.1 to 0.3 part of a titanate catalyst; 0.1 to 0.3 part of an organic tin catalyst; the polyhydroxy steric hindrance modifier is a topological structure compound containing at least two active hydroxyl groups and prepared by an addition reaction of polyfunctional aliphatic polyol and an unsaturated bridged ring alicyclic compound under the catalysis of Lewis acid, and the content of the active hydroxyl groups is 3.5-4mmol / g. The high-toughness methyl silicone resin is applied to preparation of a flexible sealing material or a heat-resistant coating material for a heating pipeline.

Provided are: an active energy ray-curable composition comprising a component (A) as a curable component, wherein the content of the component (A) is not less than 50.0 mass% of curable components; a cured product obtained by curing the active energy ray-curable composition; and an optical member.　The component (A) is an alicyclic compound which has at least one aliphatic hydrocarbon ring structure and at least one epoxy group or hydroxyl group, wherein a ratio obtained by dividing the mass of a carbon atom group constituting the aliphatic hydrocarbon ring structure by the mass of an entire molecule thereof is in the range of 60.0-80.0%.

Compositions and methods for inhibiting corrosion of metal surfaces and reducing levels of hydrogen sulfide are disclosed herein. A composition may include a nitrogen-containing alicyclic compound and / or a thio-containing compound. The nitrogen-containing alicyclic compound and the thio-containing compound may be added to a medium in contact with a metal surface and / or they may be added directly to a metal surface. Other components may be added as well, such as a biocide and / or a scale inhibitor.

A ring hydrogenation of aromatic compounds prepares alicyclic compounds in a process for preparing alicyclic compounds using a static mixer, and also apparatuses for carrying out this process.

Compositions and methods for inhibiting corrosion of metal surfaces and reducing levels of hydrogen sulfide are disclosed herein. A composition may include a nitrogen-containing alicyclic compound and / or a thio-containing compound. The nitrogen-containing alicyclic compound and the thio-containing compound may be added to a medium in contact with a metal surface and / or they may be added directly to a metal surface. Other components may be added as well, such as a biocide and / or a scale inhibitor.

The invention discloses a hydrogenation catalyst and a preparation method thereof, and a method for synthesizing an alicyclic compound by hydrogenation of an aromatic compound. The hydrogenation catalyst is a supported Ru-Rh bimetallic catalyst with high activity, high selectivity and long service life. Compared with the prior art, the catalyst prepared by the method is high in universality and wide in applicable process range, can catalyze hydrogenation of various aromatic compounds to obtain corresponding alicyclic compounds in a high-activity and high-selectivity manner, and has special diastereoselectivity in catalysis of hydrogenation of some aromatic compounds containing multiple substituents.

A flame retardant resin composition comprising: a hydrogenated petroleum resin, being a hydrogenated product of a polymer of an unsaturated hydrocarbon comprising at least one selected from the group consisting of an alicyclic compound having a five-membered ring and an aromatic hydrocarbon compound; a polyolefin; and an inorganic filler.

The invention relates to the use of a static mixer in the preparation of cycloaliphatic carboxylic acids and their esters. The present invention is in the field of production of cycloaliphatic compounds by cyclohydrogenation of aromatic compounds. In the context of the invention there is provided a process for preparing cycloaliphatic compounds, preferably cycloaliphatic carboxylic acids and esters thereof, using a static mixer, as well as an apparatus for carrying out the process.

Provided is a resin composition having high thermal resistance and low dielectric properties, as well as a cured product, a prepreg, a metal foil-clad laminate, a resin sheet, and a printed wiring board. The resin composition contains a compound (A) represented by Formula (M1) and a cyanate ester compound (B) containing two or more aromatic moieties per molecule, the aromatic moieties being replaced by at least one cyanato group: where in Formula (M1), A is a four- to six-membered alicyclic group:

The disclosure relates to viscosity improver concentrates comprising a bio-based liquid decarboxylated rosin acid as a solubilizer, and a viscosity index improver. The viscosity improver concentrate is used in lubricating oil compositions comprising base oil and optional additives. The decarboxylated rosin acid component has at least one or more of: one or more C═C groups, and 40-100 wt. % of tricyclic compounds having 18-20 carbon atoms; a sum of tricyclic compounds as aromatic and cycloaliphatic of 50-100 wt. %, based on total weight of the decarboxylated rosin acid; and an amount of cycloaliphatic compounds of 15-100 wt. %, based on total weight of the decarboxylated rosin acid. The viscosity improver concentrates comprising the solubilizer have comparable properties, including compatibility, kinematic viscosity, and viscosity index, to other commonly used fossil based solubilizers.

The invention relates to temperature control in the preparation of alicyclic polycarboxylic acids and esters thereof. The invention belongs to the technical field of preparation of alicyclic compounds through ring hydrogenation of aromatic compounds. Provided in the context of the present invention are processes for preparing cycloaliphatic compounds, preferably cycloaliphatic carboxylic acids and esters thereof, as well as apparatuses for carrying out the processes.

A composition for forming a resist underlayer film that enables the formation of a desired resist pattern; and a method for producing a resist pattern and a method for producing a semiconductor device, each of which uses the above-described resist underlayer film forming composition. A resist underlayer film forming composition which contains a polymer having, at an end, an aliphatic ring that may be substituted by a substituent, while having a carbon-carbon bond that may be interrupted by a heteroatom, and which additionally contains an organic solvent. The aliphatic ring is a monocyclic or polycyclic aliphatic ring having 3-10 carbon atoms. The polycyclic aliphatic ring is a bicyclic ring or a tricyclic ring.

This application relates to a resin composition for 3D printing, the resin composition comprising a) at least one curable oligomer or prepolymer resin component (compound B), and b) a reactive diluent (compound A) having one or more chemical substances that are alicyclic compounds according to formula (I): (I).

The invention relates to the technical field of photoresist, in particular to a preparation method and application of an anti-yellowing negative thick film photoresist composition which comprises the following components in percentage by weight: 45-70% of SU8 resin, 7-30% of alicyclic epoxy resin, 5-10% of a cross-linking agent, 2-10% of a photoacid generator, 10-20% of a solvent and a flatting agent, the concentration of the flatting agent in the photoresist composition is 100-200ppm, and the yellowing resistance of the material can be improved by increasing the structural proportion of the alicyclic compound in molecules.

The present application relates to a kind of catalytic electrode for electrocatalytic aromatic compound preparation alicyclic compound and its application, it includes conductive substrate and the carrier layer and the supported metal nanoparticle layer successively arranged in the surface of the conductive substrate, the carrier layer is one or more carbides in Cr3C2, WC, W2C, MoC, Mo2C, the metal of the supported metal nanoparticle layer is one or more in Pt, Pd, Au, Ag, Cu.The catalytic electrode of the present application is by the hierarchical structure design of conductive substrate, carbide carrier layer and noble metal / non-noble metal nanoparticle layer, rely on the synergistic effect of carbide carrier and supported metal, both with the strong dissociation water capacity of carbide to provide sufficient hydrogen source for hydrogenation reaction, also utilize the π-complexing capacity of metal to realize the high selectivity adsorption to aromatic compound, simultaneously realize the rapid desorption to alicyclic product.