GB1234144A - - Google Patents
Info
- Publication number
- GB1234144A GB1234144A GB1234144DA GB1234144A GB 1234144 A GB1234144 A GB 1234144A GB 1234144D A GB1234144D A GB 1234144DA GB 1234144 A GB1234144 A GB 1234144A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyarylamines
- methylene bridged
- heading
- characterizing
- formaldehyde
- 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
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,234,144. Method of preparation of methylene bridged polyarylamines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 31 March, 1970 [15 April, 1969], No. 19158/69. Heading C2C. The invention relates to a process for the manufacture of methylene bridged polyarylamines by condensation of at least one primary aryl amine and formaldehyde characterizing that a heating or isomerization stage is carried out under pressure in an atmosphere of carbon dioxide in the presence of a neutral salt, e.g. a halide of an alkali or alkaline earth metal. Several examples are given.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1915869 | 1969-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1234144A true GB1234144A (en) | 1971-06-03 |
Family
ID=10124730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1234144D Expired GB1234144A (en) | 1969-04-15 | 1969-04-15 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2018053A1 (en) |
GB (1) | GB1234144A (en) |
NL (1) | NL7005176A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4039581A (en) * | 1975-06-27 | 1977-08-02 | The Upjohn Company | Process for the preparation of di(amino phenyl)methanes |
-
1969
- 1969-04-15 GB GB1234144D patent/GB1234144A/en not_active Expired
-
1970
- 1970-04-10 NL NL7005176A patent/NL7005176A/xx unknown
- 1970-04-15 DE DE19702018053 patent/DE2018053A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2018053A1 (en) | 1970-10-22 |
NL7005176A (en) | 1970-10-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES430014A1 (en) | Non-dusting, readily free-flowing granules of optical brighteners | |
CH555294A (en) | PROCESS FOR THE PRODUCTION OF HYDROGEN. | |
CH555197A (en) | METAL RECOVERY PROCESS. | |
CH555838A (en) | PROCESS FOR THE PRODUCTION OF WATER-SOLUBLE, ETHERIZED METHYLOL MELAMINES. | |
GB1234144A (en) | ||
AT303757B (en) | Process for the production of new melamine derivatives suitable as flame retardants for textiles | |
ES441404A1 (en) | Process of preparing 5-fluoro-2-methyl-1-(paramethylsulfinylbenzylidene)-indenyl-3-acetic acid | |
GB1463618A (en) | Process for the preparation of 5-chloro-2-toluidine | |
GB1345502A (en) | Quinazoline compounds and processes for their production | |
GB1229695A (en) | ||
AT348763B (en) | METHOD FOR THE PRODUCTION OF HIGHLY DISPERSED UREA-FORMALDEHYDE CONDENSATION POLYMERS MODIFIED BY SULFOGROUPES | |
GB1229236A (en) | ||
GB1494940A (en) | Process for the preparation of an octadienenitrile compound | |
GB1429510A (en) | Tert.butyl 4-tert,butyl perbenzoate and a process for its manufacture | |
GB1464227A (en) | S-inosylcysteine and a process for producing the same | |
ES422334A1 (en) | Process for the manufacture of potassium phosphates | |
GB1471808A (en) | Process for preparing 6-chloro-2-chloromethyl-4-phenylquina zoline-3-oxide and intermediates therefor | |
GB1492255A (en) | Process for the preparation of chloroanthraquinones from nitroanthraquinones | |
GB1234145A (en) | Manufacture of methylene bridged polyarylamines | |
AT326352B (en) | PROCESS FOR RING OPENING POLYMERIZATION OF CYCLOOCTADIEN- (1.5) | |
GB1359630A (en) | Process for preparing 3-hydroxy-isoxazole derivatives | |
GB1288937A (en) | ||
GB1282828A (en) | Process for the production of diarylamines | |
GB1428760A (en) | Process for the manufacture of 2-aryl-vic-triazoles | |
GB1258550A (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |