CAS: 101-68-8; Diphenylmethane-4,4'-Diisocyanate

上下游产品

CAS号7450-63-7 (亚甲基双(4,1-亚苯基))... | CAS号75-44-5 光气 | CAS号101-77-9 4,4'-二氨基二苯甲烷 | CAS号101-65-5 N,N’-[亚甲基二(4,1-... | CAS号1266555-77-4 N,N'-(methanedi... | CAS号101-65-5 N,N’-[亚甲基二(4,1-... | CAS号22053-22-1 2-is°Cyanatoeth... | CAS号78-40-0 磷酸三乙酯 | CAS号85095-61-0 防黄剂 HN-150 | CAS号7417-99-4 N,N'-(亚甲基双-P-苯基... | CAS号10097-16-2 diethyl (methyl... | CAS号101-77-9 4,4'-二氨基二苯甲烷 | CAS号7450-63-7 (亚甲基双(4,1-亚苯基))... | CAS号86672-45-9 is°Cyanatooxy(t... | CAS号58890-25-8 N,N’’-(亚甲基二-4,1...

1-萘酚苯基氨基甲酸酯置于硫酸体系中,用 硝基苯 用作溶剂,100.0~250.0 °C,699.94 Pa 条件下,反应 10.0H,反应生成4,4'-二苯甲烷二异氰酸酯,2,4'-二苯甲烷二异氰酸酯和2,2'-二苯甲烷二异氰酸酯的混合物
参考文献:Process For The Preparation Of N-Substituted Carbamic Acid Ester And Process For The Preparation Of Isocyanate Using The N-Substituted Carbamic Acid Ester
标题:Process For The Preparation Of N-Substituted Carbamic Acid Ester And Process For The Preparation Of Isocyanate Using The N-Substituted Carbamic Acid Ester

专利信息

专利号:US-7956011-B2
优先权日:2005-05-04
标题:Materials and methods for the photodirected synthesis of oligonucleotide arrays
发明人：SERAFINOWSKI PAWEL JERZY; GARLAND PETER BRYAN
权利人:CANCER RES INST ROYAL
摘要:Materials and methods for photodirected synthesis of oligonucleotide arrays on a solid substrate by photodirected synthesis are disclosed which employ a film formed from (i) a photoacid generator that on photolysis generates acid that is capable of directly removing the protecting group of the linker molecules or oligonucleotides and (ii) a polymer substantially lacking electronegative heteroatoms that are capable of hydrogen bonding with photogenerated acid. Methods of synthesizing an oligomer arrays are also described that use a film that restricts diffusion of reactants and products on the substrate during synthesis of the array and which includes a precursor of a deprotecting reagent. The method involves removing one or more of the non-required products of the deprotection reaction from the reactive array elements at which they are produced during the reaction, in order to displace the deprotection reaction towards completion.

专利号:US-6924385-B2
优先权日:2002-11-18
标 题:Method for synthesis of aliphatic isocyanates from aromatic isocyanates
发明人：LETTMANN CHRISTIAN; KOHLSTRUK STEPHAN; STOCHNIOL GUIDO; SPYROU EMMANOUIL
权利人:DEGUSSA
摘要:The invention relates to a method for synthesis of aliphatic isocyanates from aromatic isocyanates in substantially 3 stages. In particular, the invention relates to a method for synthesis of bis{4-isocyanatocyclohexyl}methane (H 12 MDI) from bis{4-isocyanatophenyl}methane (MDI). More especially, the invention relates to a method for synthesis of H 12 MDI with a trans-trans isomer content of <30%, preferably of <20%, particularly preferably of 5 to 15%.

专利号:US-2024368099-A1
优先权日:2022-01-18
标 题:Methods for the synthesis of di(hydroxymethyl)tetrahydrofuran and its application in polyesters and polyurethanes
发明人：SPIEGELBERG BRIAN; BRANDT ADRIAN; BECK HORST; KUX ALEXANDER; TIN SERGEY; DE VRIES JOHANNES GERARDUS
权利人:HENKEL AG & CO KGAA
摘要:The present invention relates to the synthesis of di(hydroxymethyl)tetrahydrofuran (DHMTHF) and the preparation of trans-enriched mixtures of DHMTHF. The invention further refers to polyester polyols which are obtained by reaction of cis/trans DHMTHF mixtures with a dicarboxylic acid. The invention further relates to polyurethanes and compositions containing a polyester polyol comprising DHMTHF, in particular to such polyurethane-containing (adhesive) compositions.

专利号:US-2024101506-A1
优先权日:2021-01-26
标 题 :Continuous process for the synthesis of dimethyl carbonate over a cerium-based catalyst formulation
发明人：SRINIVAS DARBHA; BOKADE VIJAY VASANT; NIPHADKAR PRASHANT SURESH; PULIKKEEL UNNIKRISHNAN; PARMAR SNEHALKUMAR; AMTE VINAY; SENGUPTA SURAJIT; DAS ASIT KUMAR
权利人:COUNCIL SCIENT IND RES
摘要:The present invention discloses a continuous process for the synthesis of dimethyl carbonate from methanol and carbon dioxide over a ceria-based mixed metal oxide-silica catalyst formulation in the presence of a dehydrating or water trapping compound (2-Cyanopyridine).

专利号:US-11780952-B2
优先权日:2016-08-08
标题:Process for the synthesis of silylated polyurethanes and silylated polyurethane composition
发明人：LAFERTE OLIVIER
权利人:BOSTIK SA
摘要:The present invention provides a process for the synthesis of silylated polyurethanes, comprising three sequential steps, a step (i) of preparing NCO-terminated polyurethane, a step (ii) of partial grafting of the NCO functions with silane functions and a step (iii) of total grafting of the residual NCO functions with functions that react with the NCO functions by means of polyfunctional compounds. The present invention also provides a silylated polyurethane composition that can be obtained by means of the process according to the invention, an adhesive composition comprising said silylated polyurethane composition and a self-adhesive item obtained from the adhesive composition according to the invention.

专利号:US-9617372-B2
优先权日:2012-10-24
标 题 :Sulphur-comprising polyaromatic polyamine that can be used in the synthesis of polyurea
发明人：FEDURCO MILAN; RIBEZZO MARCO
权利人:MICHELIN & CIE; MICHELIN RECH TECH
摘要:A sulphur-comprising polyaromatic polyamine compound can be used as a monomer or prepolymer, when n is different from zero, in the synthesis of polyurea. The compound corresponds to the formula (I):n nH 2 N—Ar 1 —NH—CH 2 —CH(OH)—(CH 2 ) m —O—Z 1 —O—(CH 2 ) m —CH(OH)—CH 2 —[X] n —HN—Ar 2 —NH 2 n nin which X represents the string:n n—HN—Ar 3 —NH—(CH 2 )—CH(OH)—(CH 2 ) m —O—Z 2 —O—(CH 2 ) m —CH(OH)—(CH 2 )—n nand in which n represents an integer equal to zero or different from zero; m, which are identical or different, represent an integer within a range from 1 to 10; Z 1 and Z 2 , which are identical or different, represent a divalent bonding group comprising from 1 to 30 carbon atoms; and Ar 1 , Ar 2 and Ar 3 , which are identical or different, each represent a phenylene group, at least one of these phenylene groups bearing one, two, three or four groups of formula —S x —R in which “xâ€? is an integer from 1 to 8 and R represents hydrogen or a hydrocarbon group which can comprise a heteroatom and which comprises from 1 to 10 carbon atoms.