GB1382452A - Manufacture of methylene bridged polyphenyl polyisocyantes - Google Patents

Manufacture of methylene bridged polyphenyl polyisocyantes

Info

Publication number
GB1382452A
GB1382452A GB368172*[A GB368172A GB1382452A GB 1382452 A GB1382452 A GB 1382452A GB 368172 A GB368172 A GB 368172A GB 1382452 A GB1382452 A GB 1382452A
Authority
GB
United Kingdom
Prior art keywords
methylene bridged
bridged polyphenyl
polyisocyantes
manufacture
methylene
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
Application number
GB368172*[A
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
Priority to BE794327D priority Critical patent/BE794327A/en
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB368172*[A priority patent/GB1382452A/en
Priority to ZA730005A priority patent/ZA735B/en
Priority to DE2301554A priority patent/DE2301554A1/en
Priority to AU51102/73A priority patent/AU5110273A/en
Priority to NL7300561A priority patent/NL7300561A/xx
Priority to AR246166A priority patent/AR193315A1/en
Priority to IT19599/73A priority patent/IT987008B/en
Priority to FR7302679A priority patent/FR2169274B1/fr
Priority to BR73590A priority patent/BR7300590D0/en
Priority to JP48010920A priority patent/JPS4881841A/ja
Publication of GB1382452A publication Critical patent/GB1382452A/en
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
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

1382452 Methylene bridged polyphenyl polyisocyanates IMPERIAL CHEMICAL INDUSTRIES Ltd 27 Dec 1972 [26 Jan 1972] 3681/72 Heading C2C In a process for the preparation of methylene bridged polyphenyl polyisocyanates by the phosgenation of methylene bridged polyphenyl polyamines, the methylene bridged polyphenyl polyamines used as starting material contain from 1 to 7% by weight of secondary amine expressed as weight per cent of aminobenzylaniline of the total methylene bridged polyphenyl polyamines. The methylene bridged polyphenyl polyamine containing 1 to 7% of secondary amine may be prepared by reacting aniline with formaldehyde.
GB368172*[A 1972-01-26 1972-01-26 Manufacture of methylene bridged polyphenyl polyisocyantes Expired GB1382452A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
BE794327D BE794327A (en) 1972-01-26 POLYPHENYLPOLYISOCYANATES PRODUCTION PROCESS
GB368172*[A GB1382452A (en) 1972-01-26 1972-01-26 Manufacture of methylene bridged polyphenyl polyisocyantes
ZA730005A ZA735B (en) 1972-01-26 1973-01-02 Process for the manufacture of methylene bridged polyphenyl polyisocyanates
DE2301554A DE2301554A1 (en) 1972-01-26 1973-01-12 PROCESS FOR THE PRODUCTION OF METHYLENE BRIDGES POLYPHENYL POLYISOCYANATES
NL7300561A NL7300561A (en) 1972-01-26 1973-01-15
AU51102/73A AU5110273A (en) 1972-01-26 1973-01-15 Chemical process
AR246166A AR193315A1 (en) 1972-01-26 1973-01-17 PROCEDURE FOR THE PRODUCTION OF POLYPHENYL POLYISOCYANATE COMPOSITIONS CONNECTED BY METHYLENE THROUGH THE PHOSGENATION OF METHYLENE-CONNECTED POLYPHENYL POLYAMINES
IT19599/73A IT987008B (en) 1972-01-26 1973-01-25 PROCEDURE FOR MANUFACTURING COMPOSITIONS OF POLYPENYL POLYYSO CYANATES WITH METHYLENE BRIDGES
FR7302679A FR2169274B1 (en) 1972-01-26 1973-01-25
BR73590A BR7300590D0 (en) 1972-01-26 1973-01-25 PROCESS FOR THE MANUFACTURE OF POLY-PHENYLATE POLY-ISOCIANATE COMPOSITES UNDER METHYLENE BRIDGE AND COMPOSITES PRODUCED BY THAT PROCESS
JP48010920A JPS4881841A (en) 1972-01-26 1973-01-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB368172*[A GB1382452A (en) 1972-01-26 1972-01-26 Manufacture of methylene bridged polyphenyl polyisocyantes

Publications (1)

Publication Number Publication Date
GB1382452A true GB1382452A (en) 1975-01-29

Family

ID=9762922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB368172*[A Expired GB1382452A (en) 1972-01-26 1972-01-26 Manufacture of methylene bridged polyphenyl polyisocyantes

Country Status (11)

Country Link
JP (1) JPS4881841A (en)
AR (1) AR193315A1 (en)
AU (1) AU5110273A (en)
BE (1) BE794327A (en)
BR (1) BR7300590D0 (en)
DE (1) DE2301554A1 (en)
FR (1) FR2169274B1 (en)
GB (1) GB1382452A (en)
IT (1) IT987008B (en)
NL (1) NL7300561A (en)
ZA (1) ZA735B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5386059A (en) * 1991-12-10 1995-01-31 Miles Inc. Process for preparing polyamines for lighter color polyisocyanate based foam

Also Published As

Publication number Publication date
DE2301554A1 (en) 1973-08-02
IT987008B (en) 1975-02-20
BE794327A (en) 1973-07-19
JPS4881841A (en) 1973-11-01
FR2169274A1 (en) 1973-09-07
NL7300561A (en) 1973-07-30
AU5110273A (en) 1974-07-18
AR193315A1 (en) 1973-04-11
BR7300590D0 (en) 1973-09-27
ZA735B (en) 1973-10-31
FR2169274B1 (en) 1976-11-05

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee