GB1231980A - Creation of Inventions and Patents with Artificial Intelligence

GB1231980A – – Google Patents

Info

Publication number
GB1231980A

GB1231980A

GB1231980DA
GB1231980A
GB 1231980 A
GB1231980 A
GB 1231980A

GB 1231980D A
GB1231980D A
GB 1231980DA
GB 1231980 A
GB1231980 A
GB 1231980A
Authority
GB
United Kingdom
Prior art keywords
methane
aminophenyl
weight per
per cent
aniline
Prior art date
1968-08-06
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

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.)
1968-08-06
Filing date
1969-07-04
Publication date
1971-05-12

1969-07-04
Application filed
filed
Critical

1971-05-12
Publication of GB1231980A
publication
Critical
patent/GB1231980A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

C—CHEMISTRY; METALLURGY

C07—ORGANIC CHEMISTRY

C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton

C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton

C07C209/78—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton from carbonyl compounds, e.g. from formaldehyde, and amines having amino groups bound to carbon atoms of six-membered aromatic rings, with formation of methylene-diarylamines

C—CHEMISTRY; METALLURGY

C07—ORGANIC CHEMISTRY

C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C211/00—Compounds containing amino groups bound to a carbon skeleton

C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton

C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring

C07C211/49—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring having at least two amino groups bound to the carbon skeleton

C07C211/50—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring having at least two amino groups bound to the carbon skeleton with at least two amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton

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

C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 – C08G71/00

C08G73/02—Polyamines

Abstract

1,231,980. Diaminodiphenyl methane. UPJOHN CO. 4 July, 1969 [6 Aug., 1968], No. 33784/69. Heading C2C. Di-(aminophenyl) -methanes which contain substantial amounts of the 2,41– and 2,21-isomers are prepared by mixing aniline and formaldehyde in a molar ratio of at least 3.5 1; removing the water of condensation liberated in the aniline-formaldehyde condensation product; heating the resulting anhydrous product to a temperature of 125-205 C.; adding thereto a catalytic amount of a proton source, e.g. hydrogen chloride or aniline hydrochloride; and finally isolating the product from the reaction mixture. The reaction mixture consists of methylene-bridged polyphenyl polyamines wherein the major single component is di-(aminophenyl)-methane in which the isomer proportions are as follows: 4,41 15-85 weight per cent, 2,41 10-60 weight per cent and 2,21 5-25 weight per cent. Phosgenation of the said mixture results in the corresponding polyphenyl polyisocyanates containing a substantial amount of di-(isocyanatophenyl)-methane. Di- (aminophenyl) -methane can be separated from the polyamine mixture and separately phosgenated, if desired.

GB1231980D
1968-08-06
1969-07-04

Expired

GB1231980A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US75045468A

1968-08-06
1968-08-06

Publications (1)

Publication Number
Publication Date

GB1231980A
true

GB1231980A
(en)

1971-05-12

Family
ID=25017932
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB1231980D
Expired

GB1231980A
(en)

1968-08-06
1969-07-04

Country Status (5)

Country
Link

US
(1)

US3676497A
(en)

BE
(1)

BE737126A
(en)

DE
(1)

DE1937685C2
(en)

FR
(1)

FR2015154A1
(en)

GB
(1)

GB1231980A
(en)

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

EP0014927A1
(en)

1979-02-21
1980-09-03
Bayer Ag
Process for the preparation of polyamine mixtures of the polyamino-polyaryl-polymethylene series

WO2014173856A1
(en)

2013-04-24
2014-10-30
Bayer Materialscience Ag
Process for preparation of di- and polyamines from the diphenylmethane series

Families Citing this family (24)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3960788A
(en)

1974-09-23
1976-06-01
Jefferson Chemical Company, Inc.
Modified isocyanate foams

DE2500573A1
(en)

1975-01-09
1976-07-15
Bayer Ag

PROCESS FOR PRODUCING POLYAMINES

DE2500574C3
(en)

1975-01-09
1980-05-22
Bayer Ag, 5090 Leverkusen

Process for the production of polyamines

US4039581A
(en)

1975-06-27
1977-08-02
The Upjohn Company
Process for the preparation of di(amino phenyl)methanes

US4039580A
(en)

1975-07-24
1977-08-02
The Upjohn Company
Process for preparing di(aminophenyl)methanes

US4029705A
(en)

1975-08-18
1977-06-14
The Upjohn Company
Purification process for MDA

US4028361A
(en)

1975-08-18
1977-06-07
The Upjohn Company
Process for the purification of MDA

US4008275A
(en)

1975-08-18
1977-02-15
The Upjohn Company
Process for isolating 4,4′-diaminodiphenylmethane

US4053513A
(en)

1977-01-19
1977-10-11
Texaco Development Corporation
Barium nitride catalysts for the preparation of diamino-diphenylmethanes

US4052456A
(en)

1977-01-31
1977-10-04
Texaco Development Corporation
Method of preparing polyaminopolyphenylmethanes

CA1137514A
(en)

1978-01-25
1982-12-14
Willi Eifler
Process for the preparation of polyamines of the diphenyl methane series which are rich in ortho isomers

US4294987A
(en)

1979-12-31
1981-10-13
The Upjohn Company
Process for preparing methylene dianilines

US4297294A
(en)

1980-09-29
1981-10-27
Shell Oil Company
Process for making 4,4′-methylene diphenyl diisocyanate

PT77551B
(en)

1982-10-25
1986-02-12
Elprochine Ag

METHOD FOR THE PRODUCTION OF POLYARYLAMINES HAVING METHYLENE BRANCHES

FR2545083B1
(en)

1983-04-29
1987-07-17
Ugine Kuhlmann

LIQUID COMPOSITION, CONTAINING DIPHENYLMETHANE STRUCTURED DIISOCYANATES, AND PROCESS FOR PRODUCING THE SAME

US4822517A
(en)

1987-06-16
1989-04-18
Mobay Corporation
Novel polyisocyanate mixture

US4900760A
(en)

1987-06-16
1990-02-13
Mobay Corporation
Flexible polyurethane foam prepared from a novel polyisocyanate mixture

DE10111337A1
(en)

2001-03-08
2002-09-12
Basf Ag

Process for the production of MDI, in particular 2.4′-MDI

JP5231241B2
(en)

2005-12-08
2013-07-10
ハンツマン・インターナショナル・エルエルシー

Method for producing diaminodiphenylmethanes

EP2062869A1
(en)

2007-09-19
2009-05-27
Huntsman International Llc
Process for the production of di-and polyamines of the diphenylmethane series

EP2039676A1
(en)

2007-09-19
2009-03-25
Huntsman International Llc
Process for the production of di-and polyamines of the diphenylmethane series

ES2549442T3
(en)

2010-12-15
2015-10-28
Bayer Intellectual Property Gmbh

Foams stable at high temperatures

RU2604841C9
(en)

2011-05-02
2017-09-26
Байер Интеллектуэль Проперти Гмбх
High temperature-resistant foam plastic with low thermal conductivity

CN114292211A
(en)

2022-01-12
2022-04-08
万华化学（宁波）有限公司
Preparation method of diphenylmethane diisocyanate with low PI content

Family Cites Families (14)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE335984C
(en)

1917-04-17
1921-04-21
Christian Carl Boehler

Process for the production of synthetic resin

US2015039A
(en)

1933-07-19
1935-09-17
Texas Co
Preparation of phenylmethanes

US2683730A
(en)

1951-01-17
1954-07-13
Goodyear Tire & Rubber
Polyisocyanates and mixtures thereof

US2818433A
(en)

1955-09-19
1957-12-31
Monsanto Chemicals
Process for making methylenedianilines

NL280259A
(en)

1957-05-10

GB991157A
(en)

1962-12-10
1965-05-05
Jefferson Chem Co Inc
Polyamine preparation

ES300274A1
(en)

1963-06-06
1964-11-16
Union Carbide Corp
A procedure for the production of aromatic polyamines (Machine-translation by Google Translate, not legally binding)

US3260751A
(en)

1963-06-13
1966-07-12
Mobay Chemical Corp
Method of preparing polyamines

BE639351A
(en)

1963-06-13

NL133349C
(en)

1963-12-30

US3362979A
(en)

1964-01-02
1968-01-09
Jefferson Chem Co Inc
Mixtures of methylene-bridged polyphenyl polyisocyanates

US3297759A
(en)

1964-01-13
1967-01-10
Upjohn Co
Continuous process for producing mixtures of methylene-bridged polyphenyl polyamines

FR1448359A
(en)

1964-08-24
1966-08-05
Allied Chem

Process for preparing diamines and diisocyanates and novel mixtures of bis (aminoaryl) methanes and methylenebis (arylisocyanates) isomers by phosgenation

US3476806A
(en)

1969-08-13
1969-11-04
Du Pont
Continuous methylenedianiline process

1968

1968-08-06
US
US750454A
patent/US3676497A/en
not_active
Expired – Lifetime

1969

1969-07-04
GB
GB1231980D
patent/GB1231980A/en
not_active
Expired

1969-07-24
DE
DE1937685A
patent/DE1937685C2/en
not_active
Expired

1969-08-05
FR
FR6926879A
patent/FR2015154A1/fr
active
Pending

1969-08-06
BE
BE737126D
patent/BE737126A/en
not_active
IP Right Cessation

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

EP0014927A1
(en)

1979-02-21
1980-09-03
Bayer Ag
Process for the preparation of polyamine mixtures of the polyamino-polyaryl-polymethylene series

WO2014173856A1
(en)

2013-04-24
2014-10-30
Bayer Materialscience Ag
Process for preparation of di- and polyamines from the diphenylmethane series

Also Published As

Publication number
Publication date

DE1937685A1
(en)

1970-02-12

BE737126A
(en)

1970-02-06

US3676497A
(en)

1972-07-11

FR2015154A1
(en)

1970-04-24

DE1937685C2
(en)

1982-07-01

Contact information