BE815840A - Polyarylamines with methylene bridges - obtd from aromatic amines and aliphatic aldehydes. - Google Patents

Polyarylamines with methylene bridges - obtd from aromatic amines and aliphatic aldehydes.

Info

Publication number
BE815840A
BE815840A BE145011A BE145011A BE815840A BE 815840 A BE815840 A BE 815840A BE 145011 A BE145011 A BE 145011A BE 145011 A BE145011 A BE 145011A BE 815840 A BE815840 A BE 815840A
Authority
BE
Belgium
Prior art keywords
aromatic amines
water
polyarylamines
methylene bridges
obtd
Prior art date
Application number
BE145011A
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
Publication of BE815840A publication Critical patent/BE815840A/en

Links

Classifications

    • 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
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08G12/06—Amines
    • C08G12/08—Amines aromatic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

Polyarylamines with methylene bridges are made by (a) reacting in the presence of a catalyst (i) aromatic amines with >=1H atom in the amine gp. and being unsubstd in >=1 of the posns 2,4, or 6 and (ii) aliphatic aldehyde, to form a precondensate; (b) removing the water present at the end of the reaction and (c) reacting the resulting precondensate in the presence of acid salts of aromatic amines, their condensation prods with satd aliphatic aldehyde or mixts of these in inert polar org. solvents which are soluble in water, opt. in the presence of water, or in the presence of aq. mineral acids or aq. acid salts of aromatic amines, opt. in the presence of inert polar org. solvents, and extracting the catalyst by washing with water and re-using it or neutralising it with an alkali. Suitable starting materials are e.g. aniline, o-toluidine or o-chloroaniline and formaldehyde. Prods are useful e.g. in the prodn of polyisocyanates for polyurethane mfr. and as curing agents for epoxy resins.
BE145011A 1973-06-01 1974-05-31 Polyarylamines with methylene bridges - obtd from aromatic amines and aliphatic aldehydes. BE815840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT482673A ATA482673A (en) 1973-06-01 1973-06-01 PROCESS FOR THE PRODUCTION OF METHYLENE BRIDGES POLYARYLAMINES

Publications (1)

Publication Number Publication Date
BE815840A true BE815840A (en) 1974-12-02

Family

ID=3568803

Family Applications (1)

Application Number Title Priority Date Filing Date
BE145011A BE815840A (en) 1973-06-01 1974-05-31 Polyarylamines with methylene bridges - obtd from aromatic amines and aliphatic aldehydes.

Country Status (3)

Country Link
AT (1) ATA482673A (en)
BE (1) BE815840A (en)
ZA (1) ZA743485B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297294A (en) 1980-09-29 1981-10-27 Shell Oil Company Process for making 4,4'-methylene diphenyl diisocyanate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297294A (en) 1980-09-29 1981-10-27 Shell Oil Company Process for making 4,4'-methylene diphenyl diisocyanate

Also Published As

Publication number Publication date
ATA482673A (en) 1976-04-15
ZA743485B (en) 1975-06-25

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