BE750080A - ISOCYANATE PREPARATION PROCESS - Google Patents

ISOCYANATE PREPARATION PROCESS

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
French (fr)
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/en

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
BE750080D 1969-05-07 1970-05-06 ISOCYANATE PREPARATION PROCESS BE750080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691923214 DE1923214B2 (en) 1969-05-07 1969-05-07 PROCESS FOR THE SIMULTANEOUS PREPARATION OF PURE 4,4'-DIPHENYLMETHANE DIISOCYANATE AND A POLYPHENYL-POLYMETHYLENE-POLYISOCYANATE MIXTURE, POLYPHENYL-POLYMETHYLENE-POLYISOCYANATE, AND THE USE OF POLYPHENYL-POLYMETHYLENE-POLYISOCYANATE

Publications (1)

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

Family

ID=5733446

Family Applications (1)

Application Number Title Priority Date Filing Date
BE750080D BE750080A (en) 1969-05-07 1970-05-06 ISOCYANATE PREPARATION PROCESS

Country Status (6)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115354505A (en) * 2022-08-22 2022-11-18 浙江理工大学绍兴柯桥研究院有限公司 Bio-based solvent-free polyurethane surface layer resin for synthetic leather and preparation method thereof

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2105193C3 (en) * 1971-02-04 1981-07-09 Chemie-Anlagenbau Bischofsheim GmbH, 4500 Osnabrück Process for the separation of an organic polyisocyanate mixture
US4118410A (en) 1971-02-04 1978-10-03 Gottfried Reuter Gmbh I.L. Polyphenyl-polymethylene-polyisocyanate mixtures
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 (en) * 1976-05-25 1981-07-16 Bayer Ag, 5090 Leverkusen Process for the solvent-free production of solid plastic molded parts
DE3145010A1 (en) 1981-11-12 1983-05-19 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING 4,4'-DIISOCYANATODIPHENYLMETHANE
PL1518874T3 (en) * 2003-09-24 2007-05-31 Basf Se Polymeric MDI having low monomer content
DE102004005319A1 (en) * 2004-02-04 2005-08-25 Bayer Materialscience Ag Process for the preparation of high purity 2,4'-methylene diphenyl diisocyanate
DE102005055189A1 (en) * 2005-11-19 2007-05-24 Bayer Materialscience Ag Process for the preparation of 4,4'-diphenylmethane diisocyanate
US9505711B2 (en) 2010-11-17 2016-11-29 Basf Se Method for purifying mixtures comprising 4,4′-methylenediphenyl diisocyanate
CN103339106B (en) 2010-11-17 2015-09-09 巴斯夫欧洲公司 Purifying comprises 4, the method for the mixture of 4 '-methylenediphenyl diisocyanates
JP6046043B2 (en) 2010-11-17 2016-12-14 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Process for refining a mixture comprising 4,4'-methylenediphenyl diisocyanate
US8907124B2 (en) 2010-11-17 2014-12-09 Basf Se Process for preparing methylenedi(phenyl isocyanate)
BR112013012255A2 (en) 2010-11-17 2016-08-09 Basf Se process for preparing methylene diphenyl diisocyanate
WO2012080185A1 (en) 2010-12-15 2012-06-21 Bayer Materialscience Ag Foams of high thermal stability
US20140093721A1 (en) 2011-05-02 2014-04-03 Bayer Intellectual Property Gmbh High-temperature-resistant foams having low thermal conductivity
EP2828235B1 (en) 2012-03-19 2017-11-22 Covestro Deutschland AG Method for making isocyanates
WO2022106716A1 (en) 2020-11-23 2022-05-27 Basf Se Process for producing isocyanates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115354505A (en) * 2022-08-22 2022-11-18 浙江理工大学绍兴柯桥研究院有限公司 Bio-based solvent-free polyurethane surface layer resin for synthetic leather and preparation method thereof
CN115354505B (en) * 2022-08-22 2024-03-08 浙江理工大学绍兴柯桥研究院有限公司 Bio-based solvent-free polyurethane surface layer resin for synthetic leather and preparation method thereof

Also Published As

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

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