BE778942A - PROCESS FOR SEPARATING THE CONSTITUENTS OF A MIXTURE OF ORGANIC POLYISOCYANATES - Google Patents

PROCESS FOR SEPARATING THE CONSTITUENTS OF A MIXTURE OF ORGANIC POLYISOCYANATES

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
French (fr)
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/en

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 PROCESS FOR SEPARATING THE CONSTITUENTS OF A MIXTURE OF ORGANIC POLYISOCYANATES BE778942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2105193A DE2105193C3 (en) 1971-02-04 1971-02-04 Process for the separation of an organic polyisocyanate mixture

Publications (1)

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

Family

ID=5797784

Family Applications (1)

Application Number Title Priority Date Filing Date
BE778942A BE778942A (en) 1971-02-04 1972-02-03 PROCESS FOR SEPARATING THE CONSTITUENTS OF A MIXTURE OF ORGANIC POLYISOCYANATES

Country Status (4)

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

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 (en) * 1977-03-18 1981-08-13 Bayer Ag, 5090 Leverkusen Binding or impregnating agent for lignocellulosic materials
DE19739191A1 (en) * 1997-09-08 1999-03-11 Henkel Kgaa Use of foam-free compositions containing polyurethanes for the production of casting resins and coating compositions

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 (en) * 1965-07-08 1971-02-01 Upjohn Co ISOCYANATES AND POLYISOCYANATES MANUFACTURING PROCESSES
DE1923214B2 (en) * 1969-05-07 1973-08-02 PROCESS FOR THE SIMULTANEOUS PREPARATION OF PURE 4,4'-DIPHENYLMETHANE DIISOCYANATE AND A POLYPHENYL-POLYMETHYLENE-POLYISOCYANATE MIXTURE, POLYPHENYL-POLYMETHYLENE-POLYISOCYANATE, AND THE USE OF POLYPHENYL-POLYMETHYLENE-POLYISOCYANATE

Also Published As

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

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Legal Events

Date Code Title Description
RE Patent lapsed

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

Effective date: 19850203