ES2059977T3 - Proceso para preparar 4,4'-diisocianatodiciclohexilmetano de alto contenido de isomero trans,trans. - Google Patents

Proceso para preparar 4,4'-diisocianatodiciclohexilmetano de alto contenido de isomero trans,trans.

Info

Publication number
ES2059977T3
ES2059977T3 ES90124223T ES90124223T ES2059977T3 ES 2059977 T3 ES2059977 T3 ES 2059977T3 ES 90124223 T ES90124223 T ES 90124223T ES 90124223 T ES90124223 T ES 90124223T ES 2059977 T3 ES2059977 T3 ES 2059977T3
Authority
ES
Spain
Prior art keywords
trans
weight
isomero
approximately
mixture
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 - Lifetime
Application number
ES90124223T
Other languages
English (en)
Inventor
Stephen D Seneker
Terry A Potter
Kenneth L Dunlap
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 Corp
Original Assignee
Miles Inc
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 Miles Inc filed Critical Miles Inc
Application granted granted Critical
Publication of ES2059977T3 publication Critical patent/ES2059977T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00—Derivatives of isocyanic acid
    • C07C265/14—Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
    • 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
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C07C263/20—Separation; Purification

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)

Abstract

LA INVENCION ESTA DESTINADO A UN PROCESO SENCILLO PARA LA PREPARACION DE UN DICICLOHEXILMETANO DE 4, 4''-DISOCIANATO QUE CONTIENE UN 90 % POR PESO DEL TRANS, TRANS-ISOMERO POR LO MENOS. MAS CONCRETAMENTE, EL PROCESO CONSISTE EN: (A) DERRETIR UNA MEZCLA DE ISOMEROS DE DICICLOHEXILMETANO DE 4, 4'' -DIISOCIANATO QUE CONTIENE UN 30 % POR PESO POR LO MENOS Y PREFERIBLEMENTE DE 45 A 55 % POR PESO APROXIMADAMENTE, DEL TRANS, TRANS-ISOMERO, (B) ENFRIAR LA MEZCLA DERRETIDA A UNA TEMPERATURA DE UNOS 20 A UNOS 25 C PARA FORMAR: (1) UNA FASE LIQUIDA QUE CONTIENE DE UN 18 A UN 25 % POR PESO DEL TRANS, TRANS-ISOMERO APROXIMADAMENTE, Y (2) UNA FASE SOLIDA QUE CONTIENE DE 70 A 85 % POR PESO DE TRANS, TRANS-ISOMERO APROXIMADAMENTE, (C) EXTRAER DICHA FASE LIQUIDA, (D) DISOLVER DICHA FASE SOLIDA EN UN DISOLVENTE PARA FORMAR UNA DISOLUCION QUE CONTENGA DICICLOHEXILMETANO DE 4, 4''-DIISOCIANATO, (E) DEJAR QUE DICHA DISOLUCION PERMANEZCA A TEMPERATURA AMBIENTE DURANTE UN TIEMPO SUFICIENTE PARA FORMAR: (1) UNA FASESOLIDA QUE CONTENGA DE UN 90 % POR PESO POR LO MENOS Y PREFERIBLEMENTE UN 98 % POR PESO POR LO MENOS DE TRANS, TRANS-ISOMERO, Y (2) UNA FASE LIQUIDA QUE CONTENGA DICHO DISOLVENTE Y UNA MEZCLA DE ISOMEROS DE DICICLOHEXILMETANO DE 4, 4''-DIISOCIANATO QUE CONTENGA DEL 30 AL 70 % POR PESO, Y PREFERIBLEMENTE DEL 45 AL 55 % POR PESO DEL TRANS, TRANS-ISOMERO, Y (F) EXTRAER DICHA FASE SOLIDA (E) (1).
ES90124223T 1990-01-23 1990-12-14 Proceso para preparar 4,4'-diisocianatodiciclohexilmetano de alto contenido de isomero trans,trans. Expired - Lifetime ES2059977T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46854290A 1990-01-23 1990-01-23
US07/511,155 US4983763A (en) 1990-01-23 1990-04-19 Process for preparing high trans, trans-isomer containing 4,4'-diisocyanato dicyclohexylmethane

Publications (1)

Publication Number Publication Date
ES2059977T3 true ES2059977T3 (es) 1994-11-16

Family

ID=27042438

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90124223T Expired - Lifetime ES2059977T3 (es) 1990-01-23 1990-12-14 Proceso para preparar 4,4'-diisocianatodiciclohexilmetano de alto contenido de isomero trans,trans.

Country Status (7)

Country Link
US (1) US4983763A (es)
EP (1) EP0443139B1 (es)
JP (1) JPH04210950A (es)
KR (1) KR910014340A (es)
CA (1) CA2034035A1 (es)
DE (1) DE69004244T2 (es)
ES (1) ES2059977T3 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2039544A1 (en) * 1990-04-24 1991-10-25 Stephen D. Seneker Melt crystallization process for preparing high trans,trans-isomer containing 4,4'-diisocyanato dicyclohexylmethane
US5233079A (en) * 1991-10-08 1993-08-03 Miles Inc. Free flowing solids based on 4,4'diisocyanato dicyclohexylmethane
US5208315A (en) * 1991-10-08 1993-05-04 Miles Inc. Elastomers based on 4,4'-diisocyanato dicyclohexylmethane enriched in the trans, trans isomer which contain essentially no chain extenders

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494563A (en) * 1947-01-08 1950-01-17 Du Pont Bis (4-aminocyclohexyl) methane
US2606925A (en) * 1949-12-15 1952-08-12 Du Pont Ruthenium catalyzed hydrogenation process for obtaining aminocyclohexyl compounds
US3155724A (en) * 1961-12-29 1964-11-03 Du Pont Process for bringing stereoisomeric mixture of bis-(4-aminocyclohexane) methane close to the equilibrium concentration
US3153088A (en) * 1961-12-29 1964-10-13 Du Pont Selective alteration of the ratios of mixtures of bis-(4-aminocyclohexyl) methane isomers
US3384661A (en) * 1964-12-28 1968-05-21 Du Pont Alcoholates of bis (p-aminocyclohexyl) methane and their use in separating stereoisomers of bis (p-aminocyclohexyl) methane
US3393236A (en) * 1965-06-09 1968-07-16 Du Pont Stereoisomeric preparation of bis(p-aminocyclohexyl) methane
GB1163895A (en) * 1965-11-18 1969-09-10 Ici Ltd A Composition of Matter and a Process for Making it
GB1127338A (en) * 1967-05-12 1968-09-18 Du Pont 4,4'-methylene bis (cyclohexyl isocyanate) isomers
CA971184A (en) * 1967-09-26 1975-07-15 Carl F. Irwin Aliphatic isocyanate compositions
GB1220715A (en) * 1967-10-06 1971-01-27 Allied Chem Isocyanate composition and polyurethanes derived therefrom
US3789032A (en) * 1971-06-22 1974-01-29 Du Pont Polyurethane-polyurea elastomers based on high trans-trans,4,4'-methylenebis-(cyclohexyl isocyanate)

Also Published As

Publication number Publication date
JPH04210950A (ja) 1992-08-03
DE69004244D1 (de) 1993-12-02
CA2034035A1 (en) 1991-07-24
EP0443139A1 (en) 1991-08-28
KR910014340A (ko) 1991-08-31
DE69004244T2 (de) 1994-03-03
EP0443139B1 (en) 1993-10-27
US4983763A (en) 1991-01-08

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