CAS: 838-88-0; 4,4'-Methylenebis(2-Methylaniline)

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CAS号50-00-0 甲醛 | CAS号95-53-4 邻甲苯胺 | CAS号88919-92-0 N-(methoxymethy... | CAS号636-21-5 邻甲苯胺盐酸盐 | CAS号91-78-1 六氢三苯三氰 | CAS号108-44-1 3-甲基苯胺 | CAS号72621-64-8 2-methyl-4-[(2-... | CAS号139-25-3 4,4'-二异氰酸基-3,3'... | CAS号6864-37-5 4,4'-亚甲基双(2-甲基环己胺) | CAS号1201895-82-0 (4-amino-3-meth... | CAS号2467-25-6 4,4'-亚甲基双(2-甲基苯酚) | CAS号71655-97-5 N-[2-methyl-4-[... | CAS号67277-73-0 1-methyl-5-[(5-... | CAS号64497-21-8 4-[(4-aminophen...

📜3-甲基苯胺 以 甲醇,水 作为反应溶剂,化学反应 6.0H,反应生成 3.3'-二甲基-4.4'二氨基二苯甲烷
参考文献:以h 2 Cnar和(h 2 Cnhar)+离子的合成等价物形式制备n,O-缩醛:中性和酸性促进的转化
标题:以h 2 Cnar和(h 2 Cnhar)+离子的合成等价物形式制备n,O-缩醛:中性和酸性促进的转化
摘要:描述了合成衍生自伯芳族胺的n,O-缩醛的一般方法.研发了这些化合物在中性和酸性条件下的反应性,可以将标题化合物设想为通用的h 2 C Nar或(h 2 C Nhar)+等同物.在控制ph的酸性介质中加热时,N,O-氨基缩醛已通过适度加热分别转化为过氢三嗪和双(4-氨基芳基)甲烷衍生物或n-苄基芳基胺.的还原ñ,ö-乙缩醛与氰基硼氢化钠的作用表明,C-O键仅在酸性介质中被破坏.
DOI:10.1039/p19880001631

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-11406964-B2
优先权日:2018-03-28
标题 :Heterogeneous catalysts for the synthesis of carbamates
发明人：WERSHOFEN STEFAN; VIDAL-FERRAN ANTON; RICO JOSÉ LUIS NÚÑEZ; PEREZ-RAMIREZ JAVIER; PUERTOLAS LACAMBRA BEGONA; AMRUTE AMOL P
权利人:COVESTRO INTELLECTUAL PROPERTY GMBH & CO KG
摘要:The present invention relates to a catalyst for preparing carbamates, in particular aromatic carbamates, comprising a binary oxide having the formula L1-xMxO2, wherein L is a metal selected from the lanthanoid series and M is a metal selected from the group consisting of Sc, Y, Ti, Zr, Hf, metals from the lanthanoid series and metals from the actinoid series, and wherein x ranges from 0.01 to 0.05. The present invention also relates to a method for producing said catalysts and a method of utilizing said catalysts in the production of carbamates, in particular aromatic carbamates.

专利号:US-4719053-A
优先权日:1980-08-01
标题 :Beta-chloroethylsulfonylmethyl-benzoic halides as intermediates
发明人：SCHLAEFER LUDWIG; HAEHNLE REINHARD
权利人:HOECHST AG
摘要:New beta -chloroethylsuflonylmethyl-benzoic acid halides which can serve as fibre-reactive anchors for thesynthesis of novel organic, water-soluble compounds, preferably dyestuffs, having fibre-reactive and fibre-finishing properties, such as preferably dyestuff properties, and containing, as a fibre-reactive group, one or two beta -chloroethylsufonylmethylbenzoic acid amide groups. For the synthesis of these novel fibre-finishing compounds, said new beta -chloroethylsulfonylmethyl-benzoic acid halide compounds are reacted with an organic, water-soluble compound having fibre-finishing properties and continuing one or two amino groups. Also precursors of the fibre-finishing, fibre-reactive compounds, containing said beta -chloroethylsulfonylmethyl-benzxoic acid amid grouping, can be employed for their synthesis. The novel fibre-finishing compounds can be applied onto suitable fibre materials, such as especially cellulose fibre material and natural or synthetic polyamide fibre materials, and fixed on these fibre materials in a manner similar to application and fixation methods usual in the technique for fibre-reactive compounds. The fibre-finished material, such as dyed material, shows very good wet fastnesses.

专利号:US-2025054696-A1
优先权日:2023-08-10
标 题:Thin film capacitor
发明人：CHO WEI-YU
权利人:META SYNTHESIS MAT CO LTD
摘要:A thin film capacitor is provided. The thin film capacitor includes a dielectric layer and a conductive layer. The dielectric layer includes polyimide and conductive particles. The polyimide includes ether linkages. Based on 100 weight parts of the polyimide, a total amount of monomer units including the ether linkages is 50 weight parts to 100 weight parts. Based on 100 weight parts of the dielectric layer, a total amount of the conductive particles is 10 weight parts to 70 weight parts. The conductive layer is disposed on a surface of the dielectric layer.

专利号:US-2018312623-A1
优先权日:2017-04-28
标题 :Polyurethane Elastomer with High Ultimate Elongation
发明人：WANG LIANG; WANG VIKTORIA
权利人:WANG LIANG; WANG VIKTORIA
摘要:The present invention relates to polyurethane-urea elastomers with exceptional mechanical properties and enhanced elasticity based on molecular structure analysis. The present invention involves the synthesis of a polyurethane-urea elastomer using a combination of commercially available materials: (1) polyols with ultralow unsaturation and narrow polydispersity, (2) diisocyanates with symmetric steric conformation, and (3) bulky diamines between functional groups. The preparation method for the novel polyurethane-urea is disclosed. The subject elastomers have the highest reported elongation-at-break among known polyurethane elastomers.

专利号:US-10723912-B2
优先权日:2015-12-04
标 题:Synthesis and development of polyurethane coatings containing flourine groups for abhesive applications
发明人：DOSS JEREME R; CONNELL JOHN W; WOHL JR CHRISTOPHER J
权利人:NASA
摘要:Various embodiments provide epoxy modified fluorinated urethane compositions that may provide desirable bulk mechanical properties of conventional coatings, adhesives, or structural matrix resins, while simultaneously exhibiting surface properties that may reduce surface contamination. Various embodiments provide formulations comprising epoxy modified fluorinated alkyl ether including urethane oligomer or polymer resins that may possess the requisite thermal, mechanical, chemical, and optical properties while achieving a low surface energy. In various embodiments, such resins may be prepared from random urethane oligomer compositions including fluorinated alkyl ether segments, in which the oligomers may be terminated with amino groups and subsequently reacted with epoxy including monomers or oligomers.