ES356415A1 - Preparation of di(Aminophenyl) Methane - Google Patents

Preparation of di(Aminophenyl) Methane

Info

Publication number
ES356415A1
ES356415A1 ES356415A ES356415A ES356415A1 ES 356415 A1 ES356415 A1 ES 356415A1 ES 356415 A ES356415 A ES 356415A ES 356415 A ES356415 A ES 356415A ES 356415 A1 ES356415 A1 ES 356415A1
Authority
ES
Spain
Prior art keywords
aniline
aminophenyl
methane
range
temperature
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
ES356415A
Other languages
Spanish (es)
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.)
Pharmacia and Upjohn Co
Original Assignee
Upjohn Co
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 Upjohn Co filed Critical Upjohn Co
Publication of ES356415A1 publication Critical patent/ES356415A1/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 having a high content of the p,p1-isomer is obtained by condensing aniline and formaldehyde in the presence of hydrochloric acid at a temperature within the range of 0 to 60 C., there being at least 3 moles of water/mole of aniline, the molar ratio of aniline to formaldehyde being substantially within the range of 3 : 1 to 2 : 1 and the molar proportion of acid to aniline being not greater than 1.0, and maintaining the reaction mixture within said temperature range throughout the mixing operation and thereafter at least until the presence of > N-CH 2 -N < bonds can no longer be detected in the reaction mixture and subsequently maintaining the reaction temperature substantially within the range of 0 to 100 C. until the formation of di- (aminophenyl)-methane is complete. Examples are given which illustrate this process.
ES356415A 1967-08-07 1968-07-23 Preparation of di(Aminophenyl) Methane Expired ES356415A1 (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
ES356415A1 true ES356415A1 (en) 1970-01-01

Family

ID=27097664

Family Applications (1)

Application Number Title Priority Date Filing Date
ES356415A Expired ES356415A1 (en) 1967-08-07 1968-07-23 Preparation of di(Aminophenyl) Methane

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
BE645447A (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
SE367622B (en) 1974-06-04
GB1181763A (en) 1970-02-18
DE1793137A1 (en) 1972-03-09
JPS4832104B1 (en) 1973-10-04
NL6811215A (en) 1969-02-11
NL151065B (en) 1976-10-15
BE719163A (en) 1969-02-07
FR1603607A (en) 1971-05-10

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