CAS: 553-72-0; Zinc(Ii) Benzoate

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CAS号5970-45-6 乙酸锌,二水 | CAS号6100-02-3 potassium,benzo... | CAS号743369-26-8 zinc Carbonate | CAS号65-85-0 苯甲酸 | CAS号557-20-0 二乙基锌 | CAS号532-32-1 苯甲酸钠 | CAS号7646-85-7 氯化锌 | CAS号7733-02-0 硫酸锌 | CAS号557-20-0 二乙基锌 | CAS号557-41-5 甲酸锌 | CAS号14586-52-8 Zinc 29H,31H-te... | CAS号93-97-0 苯甲酸酐

专利信息

专利号:WO-2025004059-A1
优先权日:2023-06-30
标题:Synthesis of polyether polyols based low dosage gas hydrate inhibitors using double metal cyanide catalyst
发明人：KUMAR UMESH; KUMAR ASHEESH; VERMA AKASH; DUBEY SADHBHAWANA; KUMAR SANAT; GANGULY SUDIP KUMAR
权利人:COUNCIL SCIENT IND RES
摘要:A series of different metals (Zn/Fe/Co/Sn/Mg/La/Al/Cr) based double metal cyanide (DMC) catalyst is disclosed herein. Benzene-1,3,5-tricarboxylic acid (BTC) is incorporated as an organic complexing agent (CA) in the DMC catalyst. The DMC catalysts prepared with BTC and its derivatives as CAs are highly active towards ring opening polymerization (ROP) of propylene oxide (PO) and imparts heterogeneity as compared to the DMC prepared without any CA. The polyether polyols (PEPOs) with controlled molecular weight (Mw), polydispersity index (PDI), hydroxyl value (OH), and iodine value (I2) are produced using a DMC catalyst. PEPOs of the present invention relate to low-dosage gas hydrate inhibitors (LDHIs) utilized to mitigate/manage the formation, growth, and deposition/agglomeration of gas hydrate crystals in oil and gas production pipelines (especially applicable to deep and ultra-deep developments), and drilling or fracturing operations during natural gas hydrate exploration.

专利号:WO-2016202721-A1
优先权日:2015-06-16
标 题:Salts of (s)-4-[(r)-6-(2-chloro-4-fluoro-phenyl)-5-methoxycarbonyl-2-thiazol-2-yl-3,6- dihydro-pyrimidin-4-ylmethyl]-morpholine-3-carboxylic acid, salt former and methods for preparing and using the same
发明人：EGLI ANDRé; DIODONE RALPH; WUITSCHIK GEORG
权利人:HOFFMANN LA ROCHE; HOFFMANN LA ROCHE
摘要:The present invention relates to salts of (S)-4-[(R)-6-(2-Chloro-4-fluoro-phenyl)-5- methoxycarbonyl-2-thiazol-2-yl-3,6-dihydro-pyrimidin-4-ylmethyl]-morpholine-3-carboxylic acid and an acid, the synthesis of the acid salts, and their use for the treatment of pathological disorders, particularly hepatitis B (HBV) infection.

专利号:US-5629394-A
优先权日:1992-12-17
标 题 :Direct synthesis by living cationic polymerization of nitrogen-containing polymers
发明人：CHERADAME HERVE M; CHEN FRANK J; STANAT JON E R; NGUYEN HUNG A; TABAR BEHROOZ R
权利人:EXXON CHEMICAL PATENTS INC
摘要:A method is provided for the direct synthesis by living cationic polymerization of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino, cyanato, thiocyanato or thiocarbonylamino groups. Polymerization and functionalization occur in a substantially simultaneous manner. All necessary reactants for the functionalization are present when polymerization is initiated. The nitrogen-containing functional group is provided as a part of a molecule having a release moiety which is preferably resonance stabilized or a tertiary alkyl type and which acts to aid the nitrogen-containing species in functioning as a leaving group.

专利号:US-2023340197-A1
优先权日:2022-04-22
标题 :Schiff base incorporated double metal cyanide catalyst for the production of polyether polyols
发明人：KUMAR UMESH; VERMA AKASH; SHARMA BHAWNA; KUMAR AMOD; SWATI; SENTHILKUMAR THANGARAJ; GANGULY SUDIP KUMAR; RAY ANJAN
权利人:COUNCIL SCIENT IND RES
摘要:A double metal cyanide [DMC] catalyst and a method for the synthesis thereof at room temperature is disclosed herein. Various Schiff bases are incorporated as organic complexing agents in the DMC catalysts. The catalysts of the present invention are highly active for the ring opening polymerization (ROP) of epoxides in the presence of different H-functional initiators to produce polyether polyols (PEPO) with a wide range of average molecular weight (Mw) and polydispersity index (PDI).

专利号:WO-2024227822-A1
优先权日:2023-05-02
标题 :Amine synthesis
发明人：WILKES JONATHAN
权利人:C3 BIOTECHNOLOGIES LTD
摘要:Disclosed herein are methods for the production of amines, nucleic acids for use in methods for the production of amines, enzymes for use in methods for the production of amines, methods of producing a compound utilising an amine produced by a method disclosed herein, and organisms for the production of amines.

专利号:US-8946466-B2
优先权日:2010-05-18
标 题 :Method for producing polyether carbonate polyols
发明人：Gürtler Christoph; Hofmann Jörg; WOLF AUREL; GRASSER STEFAN
权利人:Gürtler Christoph; Hofmann Jörg; WOLF AUREL; GRASSER STEFAN; BAYER IP GMBH
摘要:The present invention relates to a process for the preparation of polyether carbonate polyols from one or more H-functional starter substances, one or more alkylene oxides and carbon dioxide in the presence of at least one double metal cyanide catalyst, wherein the cyanide-free metal salt, the metal cyanide salt or both the mentioned salts used for the preparation of the double metal cyanide catalyst contain(s) from 0.3 to 1.8 mol base equivalents (based on 1 mol of the metal cyanide salt used for the synthesis of the catalyst) of alkaline metal hydroxide, metal carbonate and/or metal oxide.