ES8605546A1 - Procedimiento para la obtencion de poliisocianatos conte- niendo grupos urea - Google Patents

Procedimiento para la obtencion de poliisocianatos conte- niendo grupos urea

Info

Publication number
ES8605546A1
ES8605546A1 ES548010A ES548010A ES8605546A1 ES 8605546 A1 ES8605546 A1 ES 8605546A1 ES 548010 A ES548010 A ES 548010A ES 548010 A ES548010 A ES 548010A ES 8605546 A1 ES8605546 A1 ES 8605546A1
Authority
ES
Spain
Prior art keywords
urea group
preparation
water
group containing
containing polyisocyanates
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
ES548010A
Other languages
English (en)
Other versions
ES548010A0 (es
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 ES8605546A1 publication Critical patent/ES8605546A1/es
Publication of ES548010A0 publication Critical patent/ES548010A0/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
    • C08G18/703—Isocyanates or isothiocyanates transformed in a latent form by physical means
    • 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
    • C08G18/7825—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing ureum 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
    • C08G18/8045—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with water

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)
  • Manufacturing Of Micro-Capsules (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE POLIISOCIANATOS QUE CONTIENEN GRUPOS UREA, SOLIDOS, MEDIANTE REACCION DE POLIISOCIANATOS ORGANICOS LIBRES DE GRUPOS UREA CON AGUA. CONSISTE EN EMULSIONAR O SUSPENDER EDN FORMA ESTABLE EL POLIISOCIANATO ORGANICO EN UN EXCESO GRANDE DE AGUA, RESPECTO A LA CANTIDAD DE ISOCIANATO, EDN PRESENCIA DE 0,01 A 5%, REFERIDO A LA FASE ACUOSA, DE UN COLIDE PROTECTOR, DE 0,01 A 3% DE UN EMULSIONANTE, UN AGENTE TENSIOACTIVO NIONICO, NO IONICO O CATIONICO; LA SUSPENSION O EMULSION ASI FORMADA SE AGITA FUERTEMENTE, A LA TEMPERATURA AMBIENTE PARA QUE SE DESARROLLE LA REACCION DEL POLIISOCIANATO CON EL AGUA, EVENTUALMENTE BAJO AGITACION DE UN CATALIZADOR ADECUADO Y DE UNA BASE QUE MANTENGA EL PH EN UN VALOR MAYOR O IGUAL QUE 7. ESTOS POLIISOCIANATOS TIENEN APLICACIONES PARA LA FABRICACION DE ELASTOMEROS.
ES548010A 1984-10-20 1985-10-18 Procedimiento para la obtencion de poliisocianatos conte- niendo grupos urea Expired ES8605546A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843438527 DE3438527A1 (de) 1984-10-20 1984-10-20 Verfahren zur herstellung von harnstoffgruppen enthaltenden polyisocyanaten

Publications (2)

Publication Number Publication Date
ES8605546A1 true ES8605546A1 (es) 1986-03-16
ES548010A0 ES548010A0 (es) 1986-03-16

Family

ID=6248398

Family Applications (1)

Application Number Title Priority Date Filing Date
ES548010A Expired ES8605546A1 (es) 1984-10-20 1985-10-18 Procedimiento para la obtencion de poliisocianatos conte- niendo grupos urea

Country Status (7)

Country Link
US (1) US4680367A (es)
EP (1) EP0179343B1 (es)
JP (1) JPH0621142B2 (es)
CA (1) CA1246092A (es)
DE (2) DE3438527A1 (es)
ES (1) ES8605546A1 (es)
HU (1) HU205960B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3638148A1 (de) * 1986-11-08 1988-05-11 Bayer Ag Verfahren zur herstellung von feinteiligen harnstoffgruppen enthaltenden polyisocyanaten
DE3700572A1 (de) * 1987-01-10 1988-07-21 Bayer Ag Kunststoff-verbundkoerper und ein verfahren zu seiner herstellung
DE3801091A1 (de) * 1988-01-16 1989-07-27 Bayer Ag N,n'-bis(5-isocyanatonaphthyl) harnstoff, verfahren zu dessen herstellung und verwendung
US4940750A (en) * 1989-04-28 1990-07-10 Bayer Aktiengesellschaft Continuous process for the production of powdered polyisocyanate addition products and the powders produced therefrom
JPH0397712A (ja) * 1989-09-08 1991-04-23 Dai Ichi Kogyo Seiyaku Co Ltd 真球状高分子粉粒体の製造方法
US5928633A (en) 1995-05-16 1999-07-27 Toray Industries, Inc. Material for elimination or detoxification of super antigens
JP4646372B2 (ja) * 2000-09-19 2011-03-09 株式会社タミヤ チェーンリンク
EP2423247A1 (de) 2010-08-30 2012-02-29 Rhein Chemie Rheinau GmbH Neuartige wässrige Resorcin-Formaldehyd-Latex-Dispersionen, ein Verfahren zu deren Herstellung und deren Verwendung

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597025A (en) * 1947-09-13 1952-05-20 Armour & Co Potentially reactive aromatic diisocyanate-water resinous reaction product and method of preparing
US2757184A (en) * 1953-06-30 1956-07-31 Du Pont Process for the preparation of substituted di (isocyanatophenyl) ureas
US2757185A (en) * 1953-06-30 1956-07-31 Du Pont Substituted di (isocyanatophenyl) ureas
US2818404A (en) * 1954-06-07 1957-12-31 Du Pont Curing of polyurethanes with a di(isocyanatoaryl) urea
US2902474A (en) * 1956-01-25 1959-09-01 Du Pont 1,3 bis (3-isocyanato-o-tolyl) urea and curing polyurethane elastomers therewith
US3428592A (en) * 1966-05-24 1969-02-18 Du Pont Polyisocyanate emulsions
CH1896868D (es) * 1967-12-21
SU523643A3 (ru) * 1973-03-09 1976-07-30 Байер Аг, (Фирма) Способ получени полиуретанмочевины в высокодисперсном виде
US4032516A (en) * 1973-05-09 1977-06-28 Usm Corporation Method of making polyurethane powder
US3906019A (en) * 1974-04-25 1975-09-16 Gen Motors Corp Preparation of di(isocyanato-tolyl) urea
US4049632A (en) * 1976-07-14 1977-09-20 Armstrong Cork Company Chain extending polyurethanes with a large excess of water
DE2831674A1 (de) 1978-07-19 1980-02-07 Basf Ag Waessrige isocyanat-emulsionen fuer die verleimung von spanplatten
US4403083A (en) * 1979-06-01 1983-09-06 W. R. Grace & Co. Preparation of solid polyurethane particles
US4293679A (en) * 1979-06-13 1981-10-06 W. R. Grace & Co. Composition and method of controlling solid polyurethane particle size with water reactant

Also Published As

Publication number Publication date
JPH0621142B2 (ja) 1994-03-23
ES548010A0 (es) 1986-03-16
DE3438527A1 (de) 1986-04-24
US4680367A (en) 1987-07-14
EP0179343A2 (de) 1986-04-30
CA1246092A (en) 1988-12-06
EP0179343B1 (de) 1990-09-19
HUT42109A (en) 1987-06-29
DE3579782D1 (de) 1990-10-25
JPS61101516A (ja) 1986-05-20
HU205960B (en) 1992-07-28
EP0179343A3 (en) 1988-02-17

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010402