ES8104208A1 - Procedimiento para la obtencion de diisocianatos y mezclas de diisocianatos de la serie difemilmetano - Google Patents

Procedimiento para la obtencion de diisocianatos y mezclas de diisocianatos de la serie difemilmetano

Info

Publication number
ES8104208A1
ES8104208A1 ES494613A ES494613A ES8104208A1 ES 8104208 A1 ES8104208 A1 ES 8104208A1 ES 494613 A ES494613 A ES 494613A ES 494613 A ES494613 A ES 494613A ES 8104208 A1 ES8104208 A1 ES 8104208A1
Authority
ES
Spain
Prior art keywords
diisocyanates
isocyanate
diphenyl
mixtures
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES494613A
Other languages
English (en)
Other versions
ES494613A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES494613A0 publication Critical patent/ES494613A0/es
Publication of ES8104208A1 publication Critical patent/ES8104208A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00—Derivatives of isocyanic acid
    • C07C265/12—Derivatives of isocyanic acid having isocyanate groups bound to carbon atoms of six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/06—Compounds containing nitro groups bound to a carbon skeleton having nitro groups bound to carbon atoms of six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Saccharide Compounds (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE DIISOCIANATOS DE FORMULA (I) Y DE MEZCLAS DE LOS MISMOS; DE MEZCLAS DE ESTOS CON HASTA UN 40 POR 100 DE DIISOCIANATOS DE FORMULA (II), Y DE MEZCLAS CON HASTA UN 30 POR 100 DE OTROS DIISOCIANATODIFENILMETANO-ISOMEROS, EN CASO DADO SUSTITUIDOS POR METILO. EN LAS FORMULAS (I) Y (II), R1, R2 Y R3 SON HIDROGENO O RADICAL METILO, PERO SIEMPRE EN CADA FORMULA DOS DE ELLOS SON HIDROGENO. EL PROCEDIMIENTO CONSISTE EN UNA REACCION DE FRIEDEL-CRAFTS DE UN HALURO DE 4-NITROBENCILO CON NITROBENCENO Y/O O-NITROTOLUENO Y/O P-NITROTOLUENO A COMPUESTOS DINITRO DE FORMULA (III). DESPUES DE SEPARAR EL CATALIZADOR SE REDUCEN LOS GRUPOS, OBTENIENDOSE LOS CORRESPONDIENTES COMPUESTOS DIAMINO AROMATICOS, QUE MEDIANTE FOSGENACION SE TRANSFORMAN EN LOS DIISOCIANATOS. ESTOS COMPUESTOS SE UTILIZAN EN LA FABRICACION DE MATERIALES SINTETICOS DE POLIURETANO.
ES494613A 1979-08-31 1980-08-29 Procedimiento para la obtencion de diisocianatos y mezclas de diisocianatos de la serie difemilmetano Expired ES8104208A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792935318 DE2935318A1 (de) 1979-08-31 1979-08-31 Neue diisocyanate bzw. diisocyanatgemische der diphenylmethanreihe, verfahren zu ihrer herstellung, sowie ihre verwendung als aufbaukomponente bei der herstellung von polyurethankunststoffen nach dem isocyanat-polyadditionsverfahren

Publications (2)

Publication Number Publication Date
ES494613A0 ES494613A0 (es) 1981-04-16
ES8104208A1 true ES8104208A1 (es) 1981-04-16

Family

ID=6079781

Family Applications (1)

Application Number Title Priority Date Filing Date
ES494613A Expired ES8104208A1 (es) 1979-08-31 1980-08-29 Procedimiento para la obtencion de diisocianatos y mezclas de diisocianatos de la serie difemilmetano

Country Status (10)

Country Link
US (1) US4761498A (es)
EP (1) EP0024665B1 (es)
JP (1) JPS5636444A (es)
AT (1) ATE961T1 (es)
AU (1) AU530399B2 (es)
BR (1) BR8005501A (es)
CA (1) CA1146957A (es)
DD (1) DD154536A5 (es)
DE (2) DE2935318A1 (es)
ES (1) ES8104208A1 (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3032128A1 (de) * 1980-08-26 1982-04-08 Bayer Ag, 5090 Leverkusen Neue diisocyanate bzw. diisocyanatgemische der diphenylmethanreihe, verfahren zu ihrer herstellung, sowie ihre verwendung als aufbaukomponente bei der herstellung von polyurethankunststoffen nach dem isocyanat-polyadditionsverfahren
DE3032358A1 (de) * 1980-08-28 1982-04-08 Bayer Ag, 5090 Leverkusen Neue polyisocyanate bzw. polyisocyanatgemische der diphenylmethanreihe, verfahren zu ihrer herstellung, sowie ihre verwendung als aufbaukomponente bei der herstellung von polyurethankunststoffen nach dem isocyanat-polyadditionsverfahren
FR2525216B1 (fr) * 1982-04-16 1985-10-25 Ugine Kuhlmann Isocyanates aromatiques halogenes, ou leurs melanges, a structure diphenylmethane et leur procede de fabrication
DE3231911A1 (de) * 1982-08-27 1984-03-01 Bayer Ag, 5090 Leverkusen Diamine oder diamingemische, sowie ein verfahren zu ihrer herstellung
DE3231912A1 (de) * 1982-08-27 1984-03-01 Bayer Ag, 5090 Leverkusen Diamine oder diamingemische, sowie ein verfahren zu ihrer herstellung
DE3234996A1 (de) * 1982-09-22 1984-03-22 Bayer Ag, 5090 Leverkusen Gegebenenfalls isomerengemische darstellende cycloaliphatische diisocyanate, ein verfahren zu ihrer herstellung, sowie ihre verwendung als ausgangsmaterialien bei der herstellung von polyurethankunststoffen
DE3235573A1 (de) * 1982-09-25 1984-03-29 Bayer Ag, 5090 Leverkusen Gegebenenfalls isomerengemische darstellende cycloaliphatische diisocyanate, ein verfahren zu ihrer herstellung, sowie ihre verwendung als ausgangsmaterialien bei der herstellung von polyurethankunststoffen
FR2534578B1 (fr) * 1982-10-19 1985-07-26 Ugine Kuhlmann Isocyanates a structure diphenylmethane et leur procede de fabrication
DE3245321A1 (de) * 1982-12-08 1984-06-14 Bayer Ag, 5090 Leverkusen Diisocyanate oder diisocyanat-gemische, ein verfahren zu ihrer herstellung, sowie ihre verwendung zur herstellung von polyurethankunststoffen
FR2545083B1 (fr) * 1983-04-29 1987-07-17 Ugine Kuhlmann Composition liquide, contenant des diisocyanates a structure diphenylmethane, et son procede de fabrication
JPS6292008A (ja) * 1985-10-18 1987-04-27 Kowa Co 制御レバ−装置
DE3641702A1 (de) * 1986-12-06 1988-06-16 Bayer Ag Diisocyanate und diisocyanatgemische, ein verfahren zu ihrer herstellung und ihrer verwendung bei der herstellung von polyurethankunststoffen
JPS643931U (es) * 1987-06-26 1989-01-11
DE3721058A1 (de) 1987-06-26 1989-01-05 Bayer Ag Verfahren zur herstellung von kalthaertenden polyurethan-weichformschaumstoffen
DE3829290A1 (de) * 1988-08-30 1990-03-15 Bayer Ag Polyetherpolyole auf basis aromatischer di- und/oder polyamine, verfahren zu ihrer herstellung und verwendung fuer polyurethan- und polyisocyanurat-kunststoffe
US4898971A (en) * 1989-01-23 1990-02-06 Mobay Corporation Liquid isocyanate prepolymers
US5573431A (en) * 1995-03-13 1996-11-12 Wurster; Woody Solderless contact in board
CN115746777A (zh) * 2022-11-14 2023-03-07 湖南柯盛新材料有限公司 一种柔性单组份反应型冷贴胶及其制备方法和应用

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152162A (en) * 1959-07-29 1964-10-06 Bayer Ag Polyisocyanate-carbodiimide adducts and process for the production thereof
US3180883A (en) * 1960-07-18 1965-04-27 Leslie C Case 4, 4'-diisocyanato-3, 5-di-lower alkyl-diphenylmethane
US3375264A (en) * 1964-09-14 1968-03-26 Upjohn Co 3-alkoxy or alkylthio-4, 4'-diisocyanato diphenylmethanes
US3526652A (en) * 1966-08-05 1970-09-01 Mobay Chemical Corp Polyisocyanates-water reaction products
DE1618380C3 (de) * 1967-03-08 1975-09-11 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung eines bei Raumtemperatur flüssigen Diphenylmethan-diisocyanatpräparates
DE1901993A1 (de) * 1969-01-16 1970-08-20 Basf Ag Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat und einem Gemisch von Di- und Polyisocyanaten
US4014914A (en) * 1970-01-12 1977-03-29 Badische Anilin- & Soda-Fabrik Aktiengesellschaft Manufacture of 4,4'-diphenylmethane diisocyanate and a mixture of diisocyanates and polyisocyanates
US4189354A (en) * 1976-07-10 1980-02-19 Bayer Aktiengesellschaft Process for the production of diisocyanatodiphenyl methane isomers with an adjusted content of chlorine compounds
DE2631168B2 (de) * 1976-07-10 1979-03-08 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Diisocyanatodiphenylmethan-Isomeren mit einem eingestellten Gehalt an Chlorverbindungen

Also Published As

Publication number Publication date
CA1146957A (en) 1983-05-24
ES494613A0 (es) 1981-04-16
DE2935318A1 (de) 1981-03-26
EP0024665A1 (de) 1981-03-11
ATE961T1 (de) 1982-05-15
DE3060371D1 (en) 1982-06-24
US4761498A (en) 1988-08-02
BR8005501A (pt) 1981-03-10
AU530399B2 (en) 1983-07-14
AU6170480A (en) 1981-03-05
JPS5636444A (en) 1981-04-09
DD154536A5 (de) 1982-03-31
JPS6341383B2 (es) 1988-08-17
EP0024665B1 (de) 1982-05-05

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970401