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

    • 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
    • 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
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • 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
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0025—Foam properties rigid
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam 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
DD106366A1 (fr) 1974-06-12
DE2105193A1 (fr) 1972-08-10
DE2105193C3 (de) 1981-07-09
DE2105193B2 (de) 1980-12-04
GB1325286A (en) 1973-08-01

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Legal Events

Date Code Title Description
RE Patent lapsed

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

Effective date: 19850203