MX9801513A - Procedimiento para fabricar poliisocianatos con estructura de biuret. - Google Patents

Procedimiento para fabricar poliisocianatos con estructura de biuret.

Info

Publication number
MX9801513A
MX9801513A MX9801513A MX9801513A MX9801513A MX 9801513 A MX9801513 A MX 9801513A MX 9801513 A MX9801513 A MX 9801513A MX 9801513 A MX9801513 A MX 9801513A MX 9801513 A MX9801513 A MX 9801513A
Authority
MX
Mexico
Prior art keywords
polyisocyanates
temperatures above
aliphatically
produced
production
Prior art date
Application number
MX9801513A
Other languages
English (en)
Inventor
Helmut Woynar
Manfred Schmidt
Jurgen Gronen
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 MX9801513A publication Critical patent/MX9801513A/es

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
    • C07C273/1854—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 by reactions not involving the 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
    • C08G18/7831—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing biuret groups

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)

Abstract

Procedimiento para fabricar poliisocianatos con estructura de biuret, que se caracteriza porque: a) se reunen en forma continua en una cámara de mezcla de diisocianatos orgánicos con grupos isocianato ligados aromáticamente con diaminas orgánicas con grupos amino ligados aromáticamente, en una relacion molar de por lo menos 8:1, y b) se les hace reaccionar a una temperatura por encima de 180 degree C, c) siendo el tiempo de permanencia de los reactivos o de la mezcla de reaccion en la cámara de mezcla como máximo 60 segundos a partir de la reunion de los componentes de partida.
MX9801513A 1997-02-26 1998-02-25 Procedimiento para fabricar poliisocianatos con estructura de biuret. MX9801513A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19707576A DE19707576C1 (de) 1997-02-26 1997-02-26 Verfahren zur Herstellung von Polyisocyanaten mit Biuretstruktur

Publications (1)

Publication Number Publication Date
MX9801513A true MX9801513A (es) 1998-11-30

Family

ID=7821460

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9801513A MX9801513A (es) 1997-02-26 1998-02-25 Procedimiento para fabricar poliisocianatos con estructura de biuret.

Country Status (10)

Country Link
US (1) US5994491A (es)
EP (1) EP0861829B1 (es)
JP (1) JP4102471B2 (es)
KR (1) KR100525684B1 (es)
BR (1) BR9800208A (es)
CA (1) CA2230148A1 (es)
DE (2) DE19707576C1 (es)
ES (1) ES2217447T3 (es)
MX (1) MX9801513A (es)
TW (1) TW555739B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4514293B2 (ja) * 2000-07-13 2010-07-28 旭化成ケミカルズ株式会社 ビウレット型ポリイソシアネート組成物及びその製造方法
BR0212992A (pt) * 2001-09-21 2004-09-21 Du Pont Processo para a preparação de poliisocianatos, composição dos mesmos, composição de revestimento, substrato revestido e substrato automotivo
US20080064829A1 (en) * 2002-09-20 2008-03-13 Adams Jerome T Preparation and use of biuret-containing polyisocyanates as cross-linking agents for coatings
US7378543B2 (en) * 2003-07-24 2008-05-27 Bayer Materialscience Llc Stable liquid biuret modified and biuret allophanate modified toluene diisocyanates, prepolymers thereof, and processes for their preparation
US6838542B1 (en) 2003-07-24 2005-01-04 Bayer Materialscience Llc Stable liquid biuret modified and biuret allophanate modified diphenylmethane diisocyanates, prepolymers thereof, and processes for their preparation
US7772307B2 (en) * 2003-08-27 2010-08-10 Great Eastern Resins Industrial Co., Ltd. Water dispersible polyisocyanate composition and its uses
DE10359627A1 (de) * 2003-12-18 2005-07-21 Bayer Materialscience Ag Verfahren zur Herstellung von Diisocyanaten
JP2013534960A (ja) * 2010-06-29 2013-09-09 コンストラクション リサーチ アンド テクノロジー ゲーエムベーハー チキソトロープ剤の製造法及びその使用
WO2012117099A1 (de) 2011-03-03 2012-09-07 Basf Se Verfahren zur herstellung von biuretgruppenhaltigen polyisocyanaten
US8609887B2 (en) 2011-03-03 2013-12-17 Basf Se Process for preparing polyisocyanates comprising biuret groups

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954825A (en) * 1973-08-09 1976-05-04 E. I. Du Pont De Nemours And Company Biuret polyisocyanates
DE2803103A1 (de) * 1978-01-25 1979-07-26 Bayer Ag Verfahren zur herstellung von biuret- und/oder harnstoffgruppen aufweisenden organischen polyisocyanaten
DE3114638A1 (de) * 1981-04-10 1982-10-28 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von harnstoff- und/oder biuretgruppen aufweisenden aromatischen polyisocyanaten und ihre verwendung als isocyanatkomponente bei der herstellung von polyurethankunststoffen
DE3700209A1 (de) * 1987-01-07 1988-07-21 Bayer Ag Verfahren zur herstellung von polyisocyanaten mit biuretstruktur

Also Published As

Publication number Publication date
JP4102471B2 (ja) 2008-06-18
ES2217447T3 (es) 2004-11-01
EP0861829A2 (de) 1998-09-02
KR19980071684A (ko) 1998-10-26
EP0861829B1 (de) 2004-04-28
DE59811253D1 (de) 2004-06-03
KR100525684B1 (ko) 2005-12-21
TW555739B (en) 2003-10-01
JPH10237037A (ja) 1998-09-08
EP0861829A3 (de) 2002-08-07
BR9800208A (pt) 1999-06-29
CA2230148A1 (en) 1998-08-26
US5994491A (en) 1999-11-30
DE19707576C1 (de) 1998-04-16

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees