CAS: 38103-06-9; 5,5'-((Propane-2,2-Diylbis(4,1-Phenylene))Bis(Oxy))Bis(Isobenzofuran-1,3-Dione)

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CAS号319-03-9 4-氟邻苯二甲酸酐 | CAS号2444-90-8 4,4'-(丙烷-2,2-二基)苯酚钠 | CAS号118-45-6 4-氯代苯酐 | CAS号38103-05-8 4-[4-[2-[4-(3,4... | CAS号80-05-7 双酚a | CAS号31643-49-9 4-硝基邻苯二甲腈 | CAS号38791-67-2 4,4'-isopropyli...

专利信息

专利号:US-10808079-B2
优先权日:2015-03-27
标 题:Synthesis of copolyimides containing fluorine and silicon surface modifying agents
发明人：CONNELL JOHN W; WOHL JR CHRISTOPHER J; DOSS JEREME R; CROW ALLISON M; KIM WILLIAM T; LIN YI
权利人:NASA
摘要:Various embodiments provide random copolyimides that may possess the mechanical, thermal, chemical and optical properties associated with polyimides yet achieve a low energy surface. In various embodiments, the copolyimides may be prepared using a minor amounts of a diamino terminated fluorinated alkyl ether oligomer and a diamino terminated siloxane oligomer. The various embodiments include processes for making the copolyimides containing fluorine and silicon surface modifying agents and anisotropic coatings and articles of manufacture from them. Thus the coatings and articles of manufacture made with the copolyimides of the various embodiments may be characterized as having an anisotropic fluorine and silicon composition and low surface energy.

专利号:US-11220480-B2
优先权日:2016-12-31
标题 :Synthesis of reactive intermediates for polyetherimides, and uses thereof
发明人：GUGGENHEIM THOMAS LINK; CHIONG HENDRICH; QUEVEDO SANCHEZ BERNABE; MISIEGO ARPA CARMEN ROCIO; RODRIGUEZ ORDONEZ JUAN JUSTINO; NIEVES REMACHA JAVIER
权利人:SHPP GLOBAL TECH BV
摘要:A method for producing a reactive intermediate composition, including: reacting a substituted phthalic anhydride of the formula (I) with a diamine of the formula H 2 N—R—NH 2 in the presence of an aromatic dianhydride in an amount of 10 to 50 mole percent based on the total moles of anhydride functionality in the reaction; wherein the reacting is conducted in an aprotic solvent in a reactor, under conditions effective to produce the reactive intermediate composition; and wherein X comprises a halogen or a nitro group, and R comprises a C 6-36 aromatic hydrocarbon group or a halogenated derivative thereof, a straight or branched chain C 2-20 alkylene or a halogenated derivative thereof, or a C 3-8 cycloalkylene or a halogenated derivative thereof.

专利号:US-3965125-A
优先权日:1971-02-08
标题:Synthesis of certain bis(phthalic anhydrides)
发明人：MEYERS ROBERT A
权利人:TRW INC
摘要:Monomeric high molecular weight dianhydrides or tetraacids can be produced by the nucleophilic coupling of a halo substituted phthalimides acid and an aliphatic or aromatic compound having polyfunctional groups capable of reacting with the halo moiety of the phthalinide followed by hydrolysis and dehydration. Specifically, 4-chlorophthalate sodium salt is converted to an imide to reduce side reactions with the carboxylic acid groups prior to reaction with 4,4'-disodiumdiphenylene oxide sulfone or 2,2-di (4-sodium phenoxide) propane. After the reaction of the imide and the sulfone or propane compounds, the diimide formed is converted to the corresponding dianhydride.

专利号:US-6590108-B1
优先权日:2001-12-05
标题 :Methods for the preparation of dianhydrides
发明人：ODLE ROY RAY; GUGGENHEIM THOMAS LINK; SWATOS WILLIAM JAMES; VOLLMER MICHAEL J
权利人:GEN ELECTRIC
摘要:A method for the synthesis of a dianhydride comprises transimidation of bis (imide) (IV) n in the presence of a substituted phthalic anhydride or 4-substituted tetrahydrophthalic anhydride to yield dianhydride (V)

专利号:US-2019315690-A1
优先权日:2016-12-31
标 题:Synthesis of reactive intermediates for polyetherimides, and uses thereof

专利号:WO-2009089355-A1
优先权日:2008-01-11
标 题 :Anion exchange membranes
发明人：XIE DONG; CHEN RONGRONG; WANG GUIGUI; HSU ANDREW
权利人:UNIV INDIANA RES & TECH CORP; XIE DONG; CHEN RONGRONG; WANG GUIGUI; HSU ANDREW
摘要:Alkaline anion exchange membranes are described. The synthesis of the polymers forming alkaline anion exchange membranes are described, including chloromethylation, quaternization, and alkalinization of polymers.