FR1603607A - Di(aminophenyl)methane prepn. - useful as a curing agent and diphenylmethane diisocyanate prepn. - Google Patents

Di(aminophenyl)methane prepn. - useful as a curing agent and diphenylmethane diisocyanate prepn.

Info

Publication number
FR1603607A
FR1603607A FR1603607DA FR1603607A FR 1603607 A FR1603607 A FR 1603607A FR 1603607D A FR1603607D A FR 1603607DA FR 1603607 A FR1603607 A FR 1603607A
Authority
FR
France
Prior art keywords
prepn
aminophenyl
methane
curing agent
useful
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1603607A publication Critical patent/FR1603607A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/485—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes
    • B41J2/495—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes by selective printing from a rotating helical member
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00—Derivatives of isocyanic acid
    • C07C265/12—Derivatives of isocyanic acid having isocyanate groups bound to carbon atoms of six-membered aromatic rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Epoxy Resins (AREA)

Abstract

Di(aminophenyl)methane is produced by reacting 1 mole formaldehyde with 2 to 3 moles of aniline at 0 deg.-60 deg.C in the presence of HCl; the molar ratio acid: aniline is not higher than 1:1, Reaction is carried out until the presence of N-CH2-N (present in intermediaries) can no longer be detected. The product is pure and contains least 96% of the p,p'-isomer. It may be used as a curing agent for epoxy or polyurethane resins but in particular it may be directly phosgenated to give the diisocynate. This process fives diisocyanate which can be used directly for production of polyurethanes without purification.
FR1603607D 1967-08-07 1968-08-06 Di(aminophenyl)methane prepn. - useful as a curing agent and diphenylmethane diisocyanate prepn. Expired FR1603607A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65862067A 1967-08-07 1967-08-07
US67915267A 1967-10-30 1967-10-30

Publications (1)

Publication Number Publication Date
FR1603607A true FR1603607A (en) 1971-05-10

Family

ID=27097664

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1603607D Expired FR1603607A (en) 1967-08-07 1968-08-06 Di(aminophenyl)methane prepn. - useful as a curing agent and diphenylmethane diisocyanate prepn.

Country Status (8)

Country Link
JP (1) JPS4832104B1 (en)
BE (1) BE719163A (en)
DE (1) DE1793137A1 (en)
ES (1) ES356415A1 (en)
FR (1) FR1603607A (en)
GB (1) GB1181763A (en)
NL (1) NL151065B (en)
SE (1) SE367622B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL134128C (en) * 1963-03-20
DE2238920C3 (en) * 1972-08-08 1984-09-27 Bayer Ag, 5090 Leverkusen Process for the production of polyamines
JPH02285513A (en) * 1989-04-26 1990-11-22 Dainippon Printing Co Ltd Recording medium
US5310769A (en) * 1992-05-01 1994-05-10 Bayer Aktiengesellschaft Process for the production of polyamine mixtures of the polyamino-polyaryl-polymethylene series
CN102443308A (en) * 2010-10-15 2012-05-09 上海维度化工科技有限公司 Preparation method for epoxy floor paint curing agents
JP6264947B2 (en) * 2014-03-03 2018-01-24 東ソー株式会社 Process for producing a mixture of diphenylmethanediamine and polyphenylenepolymethylenepolyamine

Also Published As

Publication number Publication date
DE1793137A1 (en) 1972-03-09
GB1181763A (en) 1970-02-18
JPS4832104B1 (en) 1973-10-04
NL151065B (en) 1976-10-15
SE367622B (en) 1974-06-04
BE719163A (en) 1969-02-07
ES356415A1 (en) 1970-01-01
NL6811215A (en) 1969-02-11

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Legal Events

Date Code Title Description
TP Transmission of property