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Patent
Publication NumberUS 20200095178Filing StatusPatent ApplicationAvailabilityUnknownFiling Date2019-11-26Publication Date2020-03-26
Disclosed herein is a process for forming an oligomer product comprising (a) introducing into a reaction zone (i) ethylene; (ii) a heteroatomic ligand metal salt complex comprising a heteroatomic ligand complexed to a first metal salt; (iii) a second metal salt wherein an equivalent molar ratio of the second metal salt to the heteroatomic ligand of the heteroatomic ligand metal salt complex is at least 0.5:1 and where the second metal salt is an iron salt, a cobalt salt, or any combination th…
Patent
Publication NumberUS 20200096484Filing StatusPatent ApplicationAvailabilityUnknownFiling Date2018-03-15Publication Date2020-03-26
A measurement system and a method for determining steam quality (i.e. vapor mass fraction) measurements of multi-phase fluid flowing through pipes are described. An acoustic sensor device consists of an acoustic transmitter and an acoustic receiver that are designed to be attached to a pipe. The acoustic transmitter and the acoustic receiver are exposed to an interior space of the pipe through openings in a wall of the pipe. Acoustic waves generated by the transmitter and captured by the rece…
Patent
Publication NumberUS 20200094225Filing StatusPatent ApplicationAvailabilityUnknownFiling Date2019-09-19Publication Date2020-03-26
Methods for making a supported chromium catalyst are disclosed, and can comprise contacting a silica-coated alumina containing at least 30 wt. % silica with a chromium-containing compound in a liquid, drying, and calcining in an oxidizing atmosphere at a peak temperature of at least 650° C. to form the supported chromium catalyst. The supported chromium catalyst can contain from 0.01 to 20 wt. % chromium, and typically can have a pore volume from 0.5 to 2 mL/g and a BET surface area from 275 …
Patent
Publication NumberUS 20200095177Filing StatusPatent ApplicationAvailabilityUnknownFiling Date2019-04-30Publication Date2020-03-26
Provided herein is a unique process that prepares a saturated hydrocarbon mixture with well-controlled structural characteristics that address the performance requirements driven by the stricter environmental and fuel economy regulations for automotive engine oils. The process allows for the branching characteristics of the hydrocarbon molecules to be controlled so as to consistently provide a composition that has a surprising CCS viscosity at −35° C. (ASTM D5329) and Noack volatility (ASTM D…
Patent
Publication NumberUS 20200095350Filing StatusPatent ApplicationAvailabilityUnknownFiling Date2019-09-20Publication Date2020-03-26
Processes for activating chromium polymerization catalysts, which can use lower maximum activation temperatures and shorter activation times than conventional activation methods, and provide polyethylenes with high melt indices, broader molecular weight distributions, and lower long chain branching content. The activation process can comprise heating a supported chromium catalyst in an inert atmosphere to a first temperature (T1) for a first hold time (tH1), followed by allowing the chromium …
Patent
Publication NumberUS 10597299Filing StatusIssued PatentAvailabilityUnknownFiling Date2018-11-16Publication Date2020-03-24
A method is provided for synthesizing molecular sieves of ITE framework type using one or more of 1-ethyl-1,3,5-trimethylpiperidinium cations and 1-ethyl-1-methyldecahydroquinolinium cations a structure directing agent.
Patent
Publication NumberUS 10597345Filing StatusIssued PatentAvailabilityUnknownFiling Date2018-05-02Publication Date2020-03-24
Provided herein are methods of inhibiting polymerization of vinyl aromatic monomers. The methods include distilling a vinyl aromatic monomer in a distillation column to form a vinyl aromatic monomer distillate; removing the vinyl aromatic monomer distillate from the distillation column; combining the vinyl aromatic monomer distillate with 4-tert-butylcatechol (TBC) to form a treated distillate; and adding a reflux liquid that includes the treated distillate to the distillation column liquid o…
SEC Filing
Accession Number0000093410-20-000012Form Type8-KAcceptance Date2020-03-24
0000093410 2020-03-24 2020-03-24 false 0000093410 8-K 2020-03-24 Chevron Corporation DE 001-00368 94-0890210 6001 Bollinger Canyon Road, San Ramon, CA 94583 925 842-1000 false false false false Common stock, par value $.75 per share CVX NYSE false
Patent
Publication NumberUS 20200087561Filing StatusPatent ApplicationAvailabilityUnknownFiling Date2019-11-20Publication Date2020-03-19
The disclosure relates to an electrocrushing drilling fluid with an electrocrushing drilling base fluid including a polar oil, a non-polar oil, or a combination thereof and glycerine carbonate. The electrocrushing drilling fluid or base fluid may further include water or glycerin. The electrocrushing drilling fluid may further contain at least one additive. The electrocrushing drilling fluid may have a dielectric constant or dielectric strength of at least a set amount, an electric conductivi…
Patent
Publication NumberUS 20200087430Filing StatusPatent ApplicationAvailabilityUnknownFiling Date2019-09-16Publication Date2020-03-19
Catalyst preparation systems and methods for preparing reduced chromium catalysts are disclosed, and can comprise irradiating a supported chromium catalyst containing hexavalent chromium with a light beam having a wavelength within the UV-visible light spectrum. Such reduced chromium catalysts have improved catalytic activity compared to chromium catalysts reduced by other means. The use of the reduced chromium catalyst in polymerization reactor systems and olefin polymerization processes als…
We found 36,348 documents that match your Search
Research Grants: 13
Patents: 35,997
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SEC Filings: 336

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