CH541544A - Process for the simultaneous production of 4,4'-diphenylmethane diisocyanate of high purity and a polyisocyanate preparation - Google Patents

Process for the simultaneous production of 4,4'-diphenylmethane diisocyanate of high purity and a polyisocyanate preparation

Info

Publication number
CH541544A
CH541544A CH997869A CH997869A CH541544A CH 541544 A CH541544 A CH 541544A CH 997869 A CH997869 A CH 997869A CH 997869 A CH997869 A CH 997869A CH 541544 A CH541544 A CH 541544A
Authority
CH
Switzerland
Prior art keywords
high purity
diphenylmethane diisocyanate
simultaneous production
polyisocyanate preparation
polyisocyanate
Prior art date
Application number
CH997869A
Other languages
German (de)
Inventor
Nakata Masaji
Kataoka Yushin
Inoue Yoshihisa
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co filed Critical Sumitomo Chemical Co
Publication of CH541544A publication Critical patent/CH541544A/en

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
    • 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
    • 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
    • C08G12/40—Chemically modified polycondensates
CH997869A 1969-02-01 1969-06-30 Process for the simultaneous production of 4,4'-diphenylmethane diisocyanate of high purity and a polyisocyanate preparation CH541544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP745569A JPS5016355B1 (en) 1969-02-01 1969-02-01

Publications (1)

Publication Number Publication Date
CH541544A true CH541544A (en) 1973-09-15

Family

ID=11666283

Family Applications (1)

Application Number Title Priority Date Filing Date
CH997869A CH541544A (en) 1969-02-01 1969-06-30 Process for the simultaneous production of 4,4'-diphenylmethane diisocyanate of high purity and a polyisocyanate preparation

Country Status (8)

Country Link
JP (1) JPS5016355B1 (en)
BE (1) BE735258A (en)
CH (1) CH541544A (en)
DE (1) DE1932526B2 (en)
ES (1) ES368930A1 (en)
FR (1) FR2030234A1 (en)
GB (1) GB1257853A (en)
NL (1) NL144590B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2238379C3 (en) * 1972-08-04 1984-08-30 Bayer Ag, 5090 Leverkusen Process for the production of polyamines
DE2356828C2 (en) * 1973-11-14 1982-10-21 Bayer Ag, 5090 Leverkusen Process for the production of polyamines and their use as starting material for the production of polyisocyanates

Also Published As

Publication number Publication date
FR2030234A1 (en) 1970-11-13
ES368930A1 (en) 1971-05-01
DE1932526A1 (en) 1970-09-10
NL144590B (en) 1975-01-15
GB1257853A (en) 1971-12-22
BE735258A (en) 1969-12-01
NL6909874A (en) 1970-08-04
JPS5016355B1 (en) 1975-06-12
DE1932526B2 (en) 1973-01-18

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Legal Events

Date Code Title Description
PL Patent ceased