ES456660A1 - Procedimiento para la obtencion de poliisocianatos conte- niendo grupos biuret. - Google Patents

Procedimiento para la obtencion de poliisocianatos conte- niendo grupos biuret.

Info

Publication number
ES456660A1
ES456660A1 ES456660A ES456660A ES456660A1 ES 456660 A1 ES456660 A1 ES 456660A1 ES 456660 A ES456660 A ES 456660A ES 456660 A ES456660 A ES 456660A ES 456660 A1 ES456660 A1 ES 456660A1
Authority
ES
Spain
Prior art keywords
polyisocyanates
biuret groups
preparation
groups
contain biuret
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
ES456660A
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 ES456660A1 publication Critical patent/ES456660A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07C273/1818—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 from -N=C=O and XNR'R"
    • C07C273/1827—X being H
    • 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
    • C08G18/7831—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing biuret 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
    • C08G18/80—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
    • C08G18/8038—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3225

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 poliisocianatos conteniendo grupos biuret por reacción de poliaminas orgánicas conteniendo dos grupos amino primarios enlazados alifática y/o cicloalifáticamente, con poliisocianatos orgánicos libres de grupos biuret en proporción molar entre NH{sub,2} y NCO de 1 : 5 hasta 1 : 100, caracterizado porque las poliaminas se hacen reaccionar en forma de vapor con los poliisocianatos calentados a una temperatura de 100º C hasta 250º C.
ES456660A 1976-03-10 1977-03-09 Procedimiento para la obtencion de poliisocianatos conte- niendo grupos biuret. Expired ES456660A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2609995A DE2609995C3 (de) 1976-03-10 1976-03-10 Verfahren zur Herstellung von biuretgruppenhaltigen Polyisocyanaten

Publications (1)

Publication Number Publication Date
ES456660A1 true ES456660A1 (es) 1978-01-16

Family

ID=5972047

Family Applications (1)

Application Number Title Priority Date Filing Date
ES456660A Expired ES456660A1 (es) 1976-03-10 1977-03-09 Procedimiento para la obtencion de poliisocianatos conte- niendo grupos biuret.

Country Status (13)

Country Link
JP (1) JPS52108927A (es)
AT (1) AT346832B (es)
AU (1) AU506589B2 (es)
BE (1) BE852265A (es)
BR (1) BR7701381A (es)
CA (1) CA1077956A (es)
CH (1) CH627739A5 (es)
DD (1) DD130041A5 (es)
DE (1) DE2609995C3 (es)
ES (1) ES456660A1 (es)
FR (1) FR2357589A1 (es)
GB (1) GB1550521A (es)
NL (1) NL7702438A (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2803103A1 (de) * 1978-01-25 1979-07-26 Bayer Ag Verfahren zur herstellung von biuret- und/oder harnstoffgruppen aufweisenden organischen polyisocyanaten
DE3003543A1 (de) * 1980-01-31 1981-08-06 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von modifizierten polyisocynaten und ihre verwendung als aufbaukomponente bei der herstellung von polyurethankunststoffen
DE3143060A1 (de) * 1981-10-30 1983-05-11 Chemische Werke Hüls AG, 4370 Marl Pulverlacke auf der basis von blockierten isophorondiisocyanataddukten
IN172016B (es) * 1986-04-25 1993-03-13 Uop Inc
DE3700209A1 (de) * 1987-01-07 1988-07-21 Bayer Ag Verfahren zur herstellung von polyisocyanaten mit biuretstruktur
DE4439421A1 (de) * 1994-11-04 1996-05-09 Huels Chemische Werke Ag Neue harnstoffgruppenhaltige Polyamine und Verfahren zu ihrer Herstellung
DE19633404A1 (de) * 1996-08-19 1998-02-26 Basf Ag Verfahren zur Herstellung von Biuretgruppen enhaltenden Polyisocyanaten aus (cyclo)aliphatischen Diisocyanaten
US8609887B2 (en) 2011-03-03 2013-12-17 Basf Se Process for preparing polyisocyanates comprising biuret groups
EP2681189A1 (de) 2011-03-03 2014-01-08 Basf Se Verfahren zur herstellung von biuretgruppenhaltigen polyisocyanaten

Also Published As

Publication number Publication date
CA1077956A (en) 1980-05-20
GB1550521A (en) 1979-08-15
CH627739A5 (en) 1982-01-29
AU2307777A (en) 1978-09-14
AU506589B2 (en) 1980-01-10
FR2357589B1 (es) 1983-10-07
DE2609995C3 (de) 1979-12-06
NL7702438A (nl) 1977-09-13
BR7701381A (pt) 1978-05-02
DD130041A5 (de) 1978-03-01
BE852265A (fr) 1977-09-09
DE2609995B2 (de) 1978-03-23
AT346832B (de) 1978-11-27
DE2609995A1 (de) 1977-09-22
JPS52108927A (en) 1977-09-12
FR2357589A1 (fr) 1978-02-03
ATA153977A (de) 1978-04-15
JPS6229426B2 (es) 1987-06-25

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