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ES471337A1 - Procedimiento para la obtencion de alofanatos conteniendo grupos isocianato - Google Patents

Procedimiento para la obtencion de alofanatos conteniendo grupos isocianato

Info

Publication number
ES471337A1
ES471337A1 ES471337A ES471337A ES471337A1 ES 471337 A1 ES471337 A1 ES 471337A1 ES 471337 A ES471337 A ES 471337A ES 471337 A ES471337 A ES 471337A ES 471337 A1 ES471337 A1 ES 471337A1
Authority
ES
Spain
Prior art keywords
preparation
allophanates
lacquers
isocyanate
reaction
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
ES471337A
Other languages
English (en)
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 ES471337A1 publication Critical patent/ES471337A1/es
Expired legal-status Critical Current

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
    • C08G18/80—Masked polyisocyanates
    • C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
    • C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
    • C08G18/8009—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
    • C07C273/1809—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety
    • 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
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/7806—Nitrogen containing -N-C=0 groups
    • C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
    • 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
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/7806—Nitrogen containing -N-C=0 groups
    • C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
    • C08G18/7837—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing allophanate groups

Landscapes

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

Abstract

Procedimiento para la obtención de alofanatos conteniendo grupos isocianato, alifática y/o cicloalifáticamente ligados, por reacción de compuestos orgánicos que llevan grupos uretano con poliisocianatos orgánicos que llevan grupos isocianato alifática y/o cicloalifáticamente ligados, caracterizado porque la reacción se efectúa en presencia de ácidos fuertes que forman con los isocianatos alifáticos o bien cicloalifáticos un anhídrido de ácido carbámico mixto.
ES471337A 1977-07-02 1978-06-30 Procedimiento para la obtencion de alofanatos conteniendo grupos isocianato Expired ES471337A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772729990 DE2729990A1 (de) 1977-07-02 1977-07-02 Verfahren zur herstellung von isocyanatgruppen aufweisenden allophanaten

Publications (1)

Publication Number Publication Date
ES471337A1 true ES471337A1 (es) 1979-01-16

Family

ID=6013026

Family Applications (1)

Application Number Title Priority Date Filing Date
ES471337A Expired ES471337A1 (es) 1977-07-02 1978-06-30 Procedimiento para la obtencion de alofanatos conteniendo grupos isocianato

Country Status (9)

Country Link
US (1) US4160080A (es)
EP (1) EP0000194B1 (es)
JP (1) JPS5414921A (es)
AT (1) AT355558B (es)
BR (1) BR7804138A (es)
DD (1) DD138315A5 (es)
DE (2) DE2729990A1 (es)
ES (1) ES471337A1 (es)
IT (1) IT1105225B (es)

Families Citing this family (121)

* Cited by examiner, † Cited by third party
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EP4198094A1 (de) 2021-12-20 2023-06-21 Covestro Deutschland AG Mehrschichtaufbau auf metallischen untergründen basierend auf polyaspartatbeschichtungen
WO2024115350A1 (de) 2022-11-29 2024-06-06 Covestro Deutschland Ag Polyisocyanatgemisch

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB994890A (en) 1961-12-18 1965-06-10 Ici Ltd New organic polyisocyanates and their manufacture
US3734941A (en) * 1968-09-06 1973-05-22 American Cyanamid Co Process for converting urethanes to isocyanates
NL178871C (nl) * 1972-09-26 Ici Ltd Werkwijze voor het bereiden van een vloeibaar difenylmethaandiisocyanaatproduct en voor het bereiden of vervaardigen van een polyurethaan onder toepassing van een dergelijk isocyanaatproduct.

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US4160080A (en) 1979-07-03
DE2729990A1 (de) 1979-01-18
AT355558B (de) 1980-03-10
EP0000194B1 (de) 1980-07-23
IT7850121A0 (it) 1978-06-30
JPS6136508B2 (es) 1986-08-19
DE2860048D1 (en) 1980-11-13
JPS5414921A (en) 1979-02-03
EP0000194A1 (de) 1979-01-10
DD138315A5 (de) 1979-10-24
ATA476578A (de) 1979-08-15
IT1105225B (it) 1985-10-28
BR7804138A (pt) 1979-03-20

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