B01J31/122

Selective deposition of silicon oxide on metal surfaces

Methods for selective deposition of silicon oxide films on metal or metallic surfaces relative to dielectric surfaces are provided. A dielectric surface of a substrate may be selectively passivated relative to a metal or metallic surface, such as by exposing the substrate to a silylating agent. Silicon oxide is then selectively deposited on the metal or metallic surface relative to the passivated oxide surface by contacting the metal surface with a metal catalyst and a silicon precursor comprising a silanol.

METHODS OF PREPARING OLIGOMERS OF AN OLEFIN

Methods of preparing oligomers of an olefin are provided. The methods can include providing an alkylaluminum compound and irradiating the alkylaluminum compound with microwave radiation to provide an irradiated alkylaluminum compound. The methods can further include mixing the irradiated alkylaluminum compound with a chromium compound, a pyrrole compound, and a zinc compound to provide a catalyst composition. The methods can further include contacting an olefin with the composition to form oligomers of the olefin. The olefin can include ethylene, and the oligomers of the olefin can include 1-hexene.

Alkyl tin compound

An alkyl tin compound having an alkyl group bonded to a tin atom, wherein the alkyl group is a branched alkyl or cyclic group-substituted alkyl group, the branched alkyl group being an alkyl group branched at at least one carbon atom of the first to third carbon atoms counting from the tin atom, and the cyclic group-substituted alkyl group being an alkyl group having a cyclic group bonded at at least one carbon atom of the first to third carbon atoms counting from the tin atom.

Metal complexes for depositing films and method of making and using the same

Provided herein are methods of catalytic hydrosilylation, including triggerable methods, using metal-ligand complexes as catalysts, characterized by formula ML.sub.xD.sub.y; wherein: M is a metal; x is equal to the oxidation state of M; each D is independently a neutral coordinating ligand; y is zero or an integer selected from the range of 1 to 4; and each L is independently a mono-anionic ligand. L may be a η.sup.1,η.sup.2-β,β-disubstituted-ω-alkenyl ligand.

Ink compositions and quantum dot polymer composite pattern prepared from the same

An ink composition, including a quantum dot; a metal catalyst; an aromatic halide compound; an ene compound including at least one C—H moiety and a carbon-carbon unsaturated bond; and optionally, a metal oxide particle, wherein the metal catalyst is a metal salt, a metal coordination complex, or a combination thereof, wherein the metal catalyst comprises a metal that is palladium, nickel, ruthenium, rhodium, iridium, iron, cobalt, chromium, copper, platinum, silver, gold, or a combination thereof.

METHOD AND COMPOSITIONS TO ACHIEVE LONG-TERM STABLE ELECTRICAL CONDUCTIVITY IN SILICONE MATERIAL WITH CARBON BLACK AS CONDUCTIVE FILLERS
20210383942 · 2021-12-09 ·

Electrically conductive or semi-conductive curable silicone compositions with stable long term electrical resistivity/resistance are provided comprising a mixture of furnace black and acetylene black as conductive fillers. Methods for preparing the electrically conductive or semi-conductive curable silicone compositions and uses of the electrically conductive or semi-conductive curable silicone compositions are also provided.

PROCESS FOR PREPARING ALECTINIB OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF

The present invention relates to a process for preparing the Alectinib or a pharmaceutically acceptable salt thereof using lesser reaction steps and also eliminating expensive and time-consuming column chromatography. The invention also relates to novel polymorphic forms of Alectinib and Alectinib hydrochloride.

ETHYLENE OLIGOMERISATION PROCESS COMPRISING IN SITU PREPARATION OF THE CATALYTIC COMPOSITION

The invention relates to a process for oligomerization of ethylene, preferably for selective trimerization of ethylene to hex-1-ene, comprising simultaneously bringing ethylene into contact with the components of a catalytic composition based on chromium.

NANOPARTICLES OF CO COMPLEXES OF ZERO-VALENT METALS THAT CAN BE USED AS HYDROSILYLATION AND DEHYDROGENATIVE SILYLATION CATALYSTS

Nanoparticles that can be used as hydrosilylation and dehydrogenative silylation catalysts. The nanoparticles have at least one transition metal with an oxidation state of 0, chosen from the metals of columns 8, 9 and 10 of the periodic table, and at least one carbonyl ligand, preferably a silicide.

Processes for producing fluorided solid oxides and uses thereof in metallocene-based catalyst systems

Disclosed herein are methods for preparing fluorided solid oxides by contacting an acidic fluorine-containing compound with an inorganic base to form an aqueous mixture having a pH of at least 4, followed by contacting a solid oxide with the aqueous mixture to produce the fluorided solid oxide. Also disclosed are methods for preparing fluorided solid oxides by contacting an acidic fluorine-containing compound with a solid oxide to produce a mixture, followed by contacting the mixture with a inorganic base to produce the fluorided solid oxide at a pH of at least about 4. The fluorided solid oxide can be used as an activator component in a catalyst system for the polymerization of olefins.