BE750080A - Procede de preparation d'isocyanates - Google Patents

Procede de preparation d'isocyanates

Info

Publication number
BE750080A
BE750080A BE750080DA BE750080A BE 750080 A BE750080 A BE 750080A BE 750080D A BE750080D A BE 750080DA BE 750080 A BE750080 A BE 750080A
Authority
BE
Belgium
Prior art keywords
preparation process
isocyanate preparation
isocyanate
preparation
Prior art date
Application number
Other languages
English (en)
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 BE750080A publication Critical patent/BE750080A/fr

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE750080D 1969-05-07 1970-05-06 Procede de preparation d'isocyanates BE750080A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691923214 DE1923214B2 (de) 1969-05-07 1969-05-07 Verfahren zur gleichzeitigen herstellung von reinem 4,4'-diphenylmethandiisocyanat und einem polyphenyl-polymethylen-polyisocyanatgemisch, polyphenylpolymethylen-polyisocyanate und deren verwendung zur herstellung von polyurethanlacken

Publications (1)

Publication Number Publication Date
BE750080A true BE750080A (fr) 1970-10-16

Family

ID=5733446

Family Applications (1)

Application Number Title Priority Date Filing Date
BE750080D BE750080A (fr) 1969-05-07 1970-05-06 Procede de preparation d'isocyanates

Country Status (6)

Country Link
JP (1) JPS4948313B1 (fr)
BE (1) BE750080A (fr)
DE (1) DE1923214B2 (fr)
FR (1) FR2047415A5 (fr)
GB (1) GB1263439A (fr)
NL (1) NL7006542A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115354505A (zh) * 2022-08-22 2022-11-18 浙江理工大学绍兴柯桥研究院有限公司 一种合成革用生物基无溶剂聚氨酯面层树脂及其制备方法

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118410A (en) 1971-02-04 1978-10-03 Gottfried Reuter Gmbh I.L. Polyphenyl-polymethylene-polyisocyanate mixtures
DE2105193C3 (de) * 1971-02-04 1981-07-09 Chemie-Anlagenbau Bischofsheim GmbH, 4500 Osnabrück Verfahren zur Trennung eines organischen Polyisocyanatgemisches
US3892634A (en) * 1973-02-20 1975-07-01 Upjohn Co Separation of 2,4{40 {0 and 4,4{40 {0 methylene bis(phenyl isocyanate) from polymethylene polyphenyl polyisocyanates
JPS5262937A (en) * 1975-11-19 1977-05-24 Nishikawa Gomu Kougiyou Kk Method of waterrproof gutter construction of concrete joint and waterrproof gutter
DE2623401C3 (de) * 1976-05-25 1981-07-16 Bayer Ag, 5090 Leverkusen Verfahren zur lösungsmittelfreien Herstellung von massiven Kunststoff-Formteilen
DE3145010A1 (de) 1981-11-12 1983-05-19 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von 4,4'-diisocyanatodiphenylmethan
ATE348120T1 (de) * 2003-09-24 2007-01-15 Basf Ag Monomerarmes gemisch, enthaltend polymeres mdi
DE102004005319A1 (de) 2004-02-04 2005-08-25 Bayer Materialscience Ag Verfahren zur Herstellung von hochreinem 2,4'-Methylendiphenyldiisocyanat
DE102005055189A1 (de) * 2005-11-19 2007-05-24 Bayer Materialscience Ag Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat
EP2640694B1 (fr) 2010-11-17 2019-01-09 Basf Se Procédé de production de diisocyanate de méthylènediphényle
BR112013012096A2 (pt) 2010-11-17 2016-08-16 Basf Se método para a purifação de misturas
US8907124B2 (en) 2010-11-17 2014-12-09 Basf Se Process for preparing methylenedi(phenyl isocyanate)
US9505711B2 (en) 2010-11-17 2016-11-29 Basf Se Method for purifying mixtures comprising 4,4′-methylenediphenyl diisocyanate
BR112013012094A2 (pt) 2010-11-17 2016-08-16 Basf Se método para a purifação de misturas
US9481776B2 (en) 2010-12-15 2016-11-01 Covestro Deutschland Ag Foams of high thermal stability
RU2604841C9 (ru) 2011-05-02 2017-09-26 Байер Интеллектуэль Проперти Гмбх Стойкие к воздействию высоких температур пенопласты с малой теплопроводностью
ES2658214T3 (es) 2012-03-19 2018-03-08 Covestro Deutschland Ag Procedimiento para la preparación de isocianatos
US20240059648A1 (en) 2020-11-23 2024-02-22 Base Se Process for producing isocyanates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115354505A (zh) * 2022-08-22 2022-11-18 浙江理工大学绍兴柯桥研究院有限公司 一种合成革用生物基无溶剂聚氨酯面层树脂及其制备方法
CN115354505B (zh) * 2022-08-22 2024-03-08 浙江理工大学绍兴柯桥研究院有限公司 一种合成革用生物基无溶剂聚氨酯面层树脂及其制备方法

Also Published As

Publication number Publication date
DE1923214A1 (de) 1970-11-19
JPS4948313B1 (fr) 1974-12-20
FR2047415A5 (fr) 1971-03-12
NL7006542A (fr) 1970-11-10
GB1263439A (en) 1972-02-09
DE1923214B2 (de) 1973-08-02

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