FR2231709B1 - - Google Patents

Info

Publication number
FR2231709B1
FR2231709B1 FR7418421A FR7418421A FR2231709B1 FR 2231709 B1 FR2231709 B1 FR 2231709B1 FR 7418421 A FR7418421 A FR 7418421A FR 7418421 A FR7418421 A FR 7418421A FR 2231709 B1 FR2231709 B1 FR 2231709B1
Authority
FR
France
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
FR7418421A
Other languages
French (fr)
Other versions
FR2231709A1 (enrdf_load_stackoverflow
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of FR2231709A1 publication Critical patent/FR2231709A1/fr
Application granted granted Critical
Publication of FR2231709B1 publication Critical patent/FR2231709B1/fr
Expired legal-status Critical Current

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
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
FR7418421A 1973-05-29 1974-05-28 Expired FR2231709B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2537073A GB1417087A (en) 1973-05-29 1973-05-29 Polyisocyanates

Publications (2)

Publication Number Publication Date
FR2231709A1 FR2231709A1 (enrdf_load_stackoverflow) 1974-12-27
FR2231709B1 true FR2231709B1 (enrdf_load_stackoverflow) 1978-01-20

Family

ID=10226582

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7418421A Expired FR2231709B1 (enrdf_load_stackoverflow) 1973-05-29 1974-05-28

Country Status (10)

Country Link
JP (1) JPS5826337B2 (enrdf_load_stackoverflow)
AR (1) AR202214A1 (enrdf_load_stackoverflow)
BE (1) BE815525A (enrdf_load_stackoverflow)
BR (1) BR7404304D0 (enrdf_load_stackoverflow)
DE (1) DE2425658A1 (enrdf_load_stackoverflow)
ES (1) ES426730A1 (enrdf_load_stackoverflow)
FR (1) FR2231709B1 (enrdf_load_stackoverflow)
GB (1) GB1417087A (enrdf_load_stackoverflow)
IT (1) IT1012607B (enrdf_load_stackoverflow)
NL (1) NL7406894A (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1483957A (en) * 1975-05-19 1977-08-24 Ici Ltd Diphenylmethane diisocyanate compositions
US4055548A (en) * 1976-09-17 1977-10-25 The Upjohn Company Storage-stable liquid polyisocyanate composition
DE2815554A1 (de) 1978-04-11 1979-10-25 Basf Ag Schwerentflammbare polyurethan-weichschaumstoffe
US4237240A (en) 1979-04-09 1980-12-02 Basf Aktiengesellschaft Process for the manufacture of flexible polyurethane foams with high load-bearing and high energy-absorption capacity
US4287132A (en) 1980-09-29 1981-09-01 Atlantic Richfield Company Preparation of polyisocyanates from polycarbamates
JP2660588B2 (ja) * 1989-11-30 1997-10-08 日本ポリウレタン工業株式会社 軟質ポリウレタン発泡体の製造方法
JP2875877B2 (ja) * 1990-10-23 1999-03-31 三井化学株式会社 メチレン架橋ポリフェニレンポリイソシアネートの製造方法
DE4200236A1 (de) * 1992-01-08 1993-07-15 Bayer Ag Verfahren zur isolierung von polyisocyanat-isomeren aus polyisocyanatgemischen
EP1475367B1 (de) * 2003-05-08 2010-07-07 Bayer MaterialScience AG Verfahren zur Destillation eines Gemisches isomerer Diisocyanatodiphenylmethane
ATE348120T1 (de) * 2003-09-24 2007-01-15 Basf Ag Monomerarmes gemisch, enthaltend polymeres mdi
JP5590570B2 (ja) * 2008-10-06 2014-09-17 ハンツマン・インターナショナル・エルエルシー ジフェニルメタン系ジイソシアネート異性体の異なる混合物を同時に製造する方法
EP3498689A1 (en) * 2017-12-14 2019-06-19 Sulzer Chemtech AG A plant and method for purifying an isomeric monomer, such as 4,4'-methylene diphenyl diisocyanate, from a crude mixture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2105193C3 (de) * 1971-02-04 1981-07-09 Chemie-Anlagenbau Bischofsheim GmbH, 4500 Osnabrück Verfahren zur Trennung eines organischen Polyisocyanatgemisches

Also Published As

Publication number Publication date
GB1417087A (en) 1975-12-10
BR7404304D0 (pt) 1975-09-30
AR202214A1 (es) 1975-05-23
IT1012607B (it) 1977-03-10
JPS5826337B2 (ja) 1983-06-02
BE815525A (fr) 1974-11-25
JPS5035142A (enrdf_load_stackoverflow) 1975-04-03
DE2425658A1 (de) 1974-12-19
FR2231709A1 (enrdf_load_stackoverflow) 1974-12-27
ES426730A1 (es) 1976-07-01
NL7406894A (enrdf_load_stackoverflow) 1974-12-03

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Legal Events

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