BE778942A - Procede de separation des constituants d'un melange de polyisocyanates organiques - Google Patents

Procede de separation des constituants d'un melange de polyisocyanates organiques

Info

Publication number
BE778942A
BE778942A BE778942A BE778942A BE778942A BE 778942 A BE778942 A BE 778942A BE 778942 A BE778942 A BE 778942A BE 778942 A BE778942 A BE 778942A BE 778942 A BE778942 A BE 778942A
Authority
BE
Belgium
Prior art keywords
constituents
separating
mixture
organic polyisocyanates
polyisocyanates
Prior art date
Application number
BE778942A
Other languages
English (en)
Inventor
F L Friedel
A Dr Schone
F G Dr Reuter
Original Assignee
Gottfried Reuter G M B H
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 Gottfried Reuter G M B H filed Critical Gottfried Reuter G M B H
Publication of BE778942A publication Critical patent/BE778942A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00Preparation of derivatives of isocyanic acid
    • C07C263/18Separation; Purification; Stabilisation; Use of additives
    • C07C263/20Separation; Purification
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • C08G18/7621Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0025Foam properties rigid
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0041Foam properties having specified density
    • C08G2110/005< 50kg/m3

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)
BE778942A 1971-02-04 1972-02-03 Procede de separation des constituants d'un melange de polyisocyanates organiques BE778942A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2105193A DE2105193C3 (de) 1971-02-04 1971-02-04 Verfahren zur Trennung eines organischen Polyisocyanatgemisches

Publications (1)

Publication Number Publication Date
BE778942A true BE778942A (fr) 1972-05-30

Family

ID=5797784

Family Applications (1)

Application Number Title Priority Date Filing Date
BE778942A BE778942A (fr) 1971-02-04 1972-02-03 Procede de separation des constituants d'un melange de polyisocyanates organiques

Country Status (4)

Country Link
BE (1) BE778942A (fr)
DD (1) DD106366A1 (fr)
DE (1) DE2105193C3 (fr)
GB (1) GB1325286A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1417087A (en) * 1973-05-29 1975-12-10 Ici Ltd Polyisocyanates
DE2711958B2 (de) * 1977-03-18 1981-08-13 Bayer Ag, 5090 Leverkusen Binde- oder Imprägnierungsmittel für lignocellulosehaltige Materialien
DE19739191A1 (de) * 1997-09-08 1999-03-11 Henkel Kgaa Verwendung Schaum-freier Zusammensetzungen mit einem Gehalt an Polyurethanen zur Herstellung von Gießharzen und Beschichtungsmassen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217024A (en) * 1963-03-22 1965-11-09 Allied Chem Conversion of mixtures of 2, 4-and 2, 6-toluene diisocyanates to other mixtures of different isomer ratio
BE755243Q (fr) * 1965-07-08 1971-02-01 Upjohn Co Procedes de fabrication d'isocyanates et de polyisocyanates
DE1923214B2 (de) * 1969-05-07 1973-08-02 Verfahren zur gleichzeitigen herstellung von reinem 4,4'-diphenylmethandiisocyanat und einem polyphenyl-polymethylen-polyisocyanatgemisch, polyphenylpolymethylen-polyisocyanate und deren verwendung zur herstellung von polyurethanlacken

Also Published As

Publication number Publication date
DE2105193A1 (fr) 1972-08-10
DE2105193C3 (de) 1981-07-09
GB1325286A (en) 1973-08-01
DE2105193B2 (de) 1980-12-04
DD106366A1 (fr) 1974-06-12

Similar Documents

Publication Publication Date Title
BE770235A (fr) Procede de separation des constituants d&#39;un melange par chromatographi
BE782902A (fr) Procede et installation pour le fractionnement d&#39;un melange gazeux
FR2329623A1 (fr) Procede de separation du para-xylene d&#39;un melange de celui-ci avec un autre hydrocarbure aromatique
BE792039A (fr) Procede et installation de fractionnement d&#39;un melange gazeux par adsorption
FR2323665A1 (fr) Procede de separation d&#39;un melange d&#39;hydrocarbures gazeux
PT64789B (fr) Procede pour la preparation des nouveaux composes organiques avec un effet pharmaceutique
FR2332050A1 (fr) Procede d&#39;absorption par solvant pour la separation d&#39;un melange gazeux
BE786059A (fr) Procede empechant la deterioration de la force d&#39;adhesion d&#39;un fil d&#39;acier a un melange caoutchouteux.
RO64566A (fr) Procede pour la separation d&#39;isoprene partant des melanges des hydrocarbures
BE782417A (fr) Procede pour la separation d&#39;isomeres aromatiques
FR2310160A1 (fr) Procede de separation des constituants d&#39;un melange de matieres plastiques, en presence d&#39;un agent mouillant, en fonction des densites des constituants
BE790461A (fr) Procede de production d&#39;isocyanates organiques
FR2073592A5 (fr) Procede de separation d&#39;un melange de plusieurs chlorophenols
BE763780A (fr) Procede de separation de methacroleine d&#39;un melange de gaz
BE778942A (fr) Procede de separation des constituants d&#39;un melange de polyisocyanates organiques
BE838162A (fr) Procede de separation des constituants d&#39;un melange gazeux par utilisation d&#39;un adsordant selectif rapide
BE817367A (fr) Procede de separation d&#39;eau a partir de melanges organiques a plusieurs constituants par distillation
RO70440A (fr) Procede pour la preparation d&#39;un melange d&#39;antraquinone et pyrokatehyne
RO73091A (fr) Procede de separation de l&#39;azeotrope isoprene/n-pentan d&#39;un melange de hydrocarbures
BE780513A (fr) Procede de preparation en continu d&#39;isocyanates organiques
BE791124A (fr) Procede de separation de melanges de matieres grasses en constituants apoint de fusion different
BE805140A (fr) Procede pour la preparation d&#39;un melange de bitume
BE760072A (fr) Procede pour la separation de melamine a partir d&#39;un melange gazeux de synthese comprenant de la vapeur de melamine
BE825173A (fr) Procede de separation d&#39;hydrocarbures aromatiques d&#39;une charge consistant en un melange d&#39;hydrocarbures
BE804527A (fr) Procede d&#39;elimination d&#39;anhydride sulfureux d&#39;un melange gazeux

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: CHEMIE-ANLAGENBAU G.M.B.H.

Effective date: 19850203