ES477112A1 - Procedimiento para la obtencion de poliisocianatos conte- niendo grupos urea y-o biuret. - Google Patents
Procedimiento para la obtencion de poliisocianatos conte- niendo grupos urea y-o biuret.Info
- Publication number
- ES477112A1 ES477112A1 ES477112A ES477112A ES477112A1 ES 477112 A1 ES477112 A1 ES 477112A1 ES 477112 A ES477112 A ES 477112A ES 477112 A ES477112 A ES 477112A ES 477112 A1 ES477112 A1 ES 477112A1
- Authority
- ES
- Spain
- Prior art keywords
- polyisocyanates containing
- urea
- urea groups
- preparation
- dispersions
- 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
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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C275/00—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C275/28—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C275/40—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton being further substituted by nitrogen atoms not being part of nitro or nitroso 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
- C08G18/7831—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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Procedimiento para la obtención de poliisocianatos conteniendo grupos urea y/o biuret, en forma dispersada o bien disuelta en poliisocianatos libres de grupos urea y biuret, por reacción de poliisocianatos orgánicos con poliamidas orgánicas que llevan como mínimo 2 grupos amino primarios, en una proporción molar de NCO/NH2 de como mínimo 4:1, donde tanto el poliisocianato que sirve como reactante así como también como disolvente o agente de dispersión, que se emplea en exceso, se presenta y la poliamina que se emplea en defecto se introduce en el poliisocianato presentado a una temperatura dentro del margen de temperaturas de -20 hasta 250ºC, caracterizado porque a) el componente poliisocianato que se emplea en exceso se introduce en un recinto de mezcla y b) el componente poliamina que se emplea en defecto se inyecta a través de una tobera de chorro liso con un diámetro de luz de 0,01 hasta 5 mm bajo una presión de 2 hasta 1000 bar en el componente poliisocianato presentado.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782803103 DE2803103A1 (de) | 1978-01-25 | 1978-01-25 | Verfahren zur herstellung von biuret- und/oder harnstoffgruppen aufweisenden organischen polyisocyanaten |
Publications (1)
Publication Number | Publication Date |
---|---|
ES477112A1 true ES477112A1 (es) | 1979-07-01 |
Family
ID=6030305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES477112A Expired ES477112A1 (es) | 1978-01-25 | 1979-01-24 | Procedimiento para la obtencion de poliisocianatos conte- niendo grupos urea y-o biuret. |
Country Status (7)
Country | Link |
---|---|
US (2) | US4264519A (es) |
EP (1) | EP0003505B1 (es) |
JP (1) | JPS54119431A (es) |
BR (1) | BR7900429A (es) |
CA (1) | CA1148559A (es) |
DE (2) | DE2803103A1 (es) |
ES (1) | ES477112A1 (es) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
DE3121036A1 (de) * | 1981-05-27 | 1982-12-16 | Bayer Ag, 5090 Leverkusen | Verfahren zur kontinuierlicehn herstellung von organischen mono- oder polyisocyanaten |
DE3144874A1 (de) * | 1981-11-12 | 1983-05-19 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von polyaminen aus n-monoaryl-n', n'-dialkylharnstoff-verbindungen und ihre verwendung zum aufbau von polyurethanen |
GB2127031B (en) * | 1982-09-17 | 1985-11-20 | Ici Plc | Polyurea dispersions in organic isocyanates |
DE3403277A1 (de) * | 1984-01-31 | 1985-08-01 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von polyisocyanaten mit biuretstruktur |
DE3403278A1 (de) * | 1984-01-31 | 1985-08-01 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von polyisocyanaten mit biuretstruktur |
DE3425318A1 (de) * | 1984-07-10 | 1986-01-16 | Bayer Ag, 5090 Leverkusen | Verzweigte, thermoplastisch verarbeitbare, schlagzaehe polyamide |
GB8623971D0 (en) * | 1986-10-06 | 1986-11-12 | Ici Plc | Urea-modified isocyanates |
DE3700209A1 (de) * | 1987-01-07 | 1988-07-21 | Bayer Ag | Verfahren zur herstellung von polyisocyanaten mit biuretstruktur |
DE3730986A1 (de) * | 1987-09-16 | 1989-03-30 | Bayer Ag | Verfahren zur herstellung von isocyanaten und ihre verwendung zur herstellung von estergruppen aufweisenden polyisocyanaten |
DE3742181A1 (de) * | 1987-12-12 | 1989-06-22 | Bayer Ag | Verfahren zur herstellung von biuretpolyisocyanaten, die nach diesem verfahren erhaltenen verbindungen und ihre verwendung |
US5043473A (en) * | 1988-05-11 | 1991-08-27 | Mobay Corporation | Liquid isocyanate prepolymers |
JPH0249260A (ja) * | 1988-08-10 | 1990-02-19 | Matsushita Electric Ind Co Ltd | カセット装着装置 |
GB9011992D0 (en) * | 1990-05-30 | 1990-07-18 | Ici Plc | Polyisocyanate composition |
DE19545634A1 (de) | 1995-12-07 | 1997-06-12 | Bayer Ag | Festkörperreiche Bindemittelkombinationen |
DE19633404A1 (de) | 1996-08-19 | 1998-02-26 | Basf Ag | Verfahren zur Herstellung von Biuretgruppen enhaltenden Polyisocyanaten aus (cyclo)aliphatischen Diisocyanaten |
DE19707576C1 (de) * | 1997-02-26 | 1998-04-16 | Bayer Ag | Verfahren zur Herstellung von Polyisocyanaten mit Biuretstruktur |
DE10322620A1 (de) * | 2003-05-20 | 2004-12-16 | Bayer Materialscience Ag | Festkörperreiche Bindemittelkombinationen für kratzfeste Decklacke |
DE10334723A1 (de) * | 2003-07-30 | 2005-02-24 | Bayer Materialscience Ag | Neue Bindemittelkombination für hochbeständige Kunststofflacke |
DE102004056849A1 (de) * | 2004-11-25 | 2006-06-08 | Bayer Materialscience Ag | Neue Polyisocyanatgemische, ein Verfahren zu ihrer Herstellung und ihre Verwendung als Härterkomponente in Polyurethanlacken |
DE102008052765A1 (de) | 2008-10-22 | 2010-04-29 | Bayer Materialscience Ag | Feuchtigkeitshärtende Polyisocyanatmischungen |
DE102009007228A1 (de) | 2009-02-03 | 2010-08-05 | Bayer Materialscience Ag | Beschichtungen |
DE102009007194A1 (de) | 2009-02-03 | 2010-08-05 | Bayer Materialscience Ag | Flexible Beschichtungen |
DE102009038463A1 (de) * | 2009-08-21 | 2011-02-24 | Bayer Materialscience Ag | Verfahren zur Herstellung von Polyisocyanaten mit Biuretstruktur |
DE102010031682A1 (de) | 2010-07-20 | 2012-01-26 | Bayer Materialscience Ag | Bindemittelkombinationen für konstruktive Trinkwasserrohrbeschichtungen |
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 (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL238495A (es) * | 1958-04-24 | |||
BE637578A (es) * | 1962-09-19 | |||
US3124605A (en) * | 1963-12-05 | 1964-03-10 | Biuret polyisocyanates | |
US3943158A (en) * | 1970-07-01 | 1976-03-09 | Bayer Aktiengesellschaft | Urea diisocyanate compositions |
JPS5345659B2 (es) * | 1971-09-25 | 1978-12-08 | ||
BE790131A (fr) * | 1971-10-14 | 1973-04-16 | Basf Ag | Procede et dispositif de melange de liquides |
DE2261065C2 (de) * | 1972-12-14 | 1982-04-01 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von stabilen Biuretgruppen aufweisenden Polyisocyanaten |
US3954825A (en) * | 1973-08-09 | 1976-05-04 | E. I. Du Pont De Nemours And Company | Biuret polyisocyanates |
US3903126A (en) * | 1973-12-11 | 1975-09-02 | Basf Ag | Manufacture of biuret group-containing polyisocyanates |
US4147714A (en) * | 1976-03-10 | 1979-04-03 | Bayer Aktiengesellschaft | Process for the preparation of polyisocyanates which contain biuret groups |
DE2609995C3 (de) * | 1976-03-10 | 1979-12-06 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von biuretgruppenhaltigen Polyisocyanaten |
-
1978
- 1978-01-25 DE DE19782803103 patent/DE2803103A1/de not_active Withdrawn
-
1979
- 1979-01-04 CA CA000319103A patent/CA1148559A/en not_active Expired
- 1979-01-15 EP EP79100105A patent/EP0003505B1/de not_active Expired
- 1979-01-15 DE DE7979100105T patent/DE2960051D1/de not_active Expired
- 1979-01-23 JP JP564479A patent/JPS54119431A/ja active Granted
- 1979-01-24 BR BR7900429A patent/BR7900429A/pt unknown
- 1979-01-24 ES ES477112A patent/ES477112A1/es not_active Expired
-
1980
- 1980-04-07 US US06/137,676 patent/US4264519A/en not_active Expired - Lifetime
- 1980-12-05 US US06/213,434 patent/US4292255A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4292255A (en) | 1981-09-29 |
BR7900429A (pt) | 1979-08-21 |
DE2803103A1 (de) | 1979-07-26 |
EP0003505B1 (de) | 1980-12-10 |
CA1148559A (en) | 1983-06-21 |
JPS636544B2 (es) | 1988-02-10 |
JPS54119431A (en) | 1979-09-17 |
EP0003505A1 (de) | 1979-08-22 |
US4264519A (en) | 1981-04-28 |
DE2960051D1 (en) | 1981-02-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20000301 |