GB1234145A - Manufacture of methylene bridged polyarylamines - Google Patents
Manufacture of methylene bridged polyarylaminesInfo
- Publication number
- GB1234145A GB1234145A GB1915969A GB1915969A GB1234145A GB 1234145 A GB1234145 A GB 1234145A GB 1915969 A GB1915969 A GB 1915969A GB 1915969 A GB1915969 A GB 1915969A GB 1234145 A GB1234145 A GB 1234145A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyarylamines
- methylene bridged
- manufacture
- strong acid
- primary arylamine
- 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
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)
Abstract
1,234,145. Process for the preparation of methylene bridged polyarylamines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 31 March, 1970 [15 April, 1969], No. 19159/69. Heading C2C. The invention relates to a process for the manufacture of methylene bridged polyarylamines which comprises condensing a primary arylamine and formaldehyde at elevated temperature in the presence of a strong acid, i.e. an inorganic acid having a pKa value less than about 1-5, the molar proportion of primary arylamine to strong acid being greater than 1000: 1. The process may be carried out above atmospheric pressure and in a continuous manner. A neutral salt e.g. sodium chloride may be incorporated in the reaction mixture.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1915969A GB1234145A (en) | 1969-04-15 | 1969-04-15 | Manufacture of methylene bridged polyarylamines |
NL7005175A NL7005175A (en) | 1969-04-15 | 1970-04-10 | |
DE19702017895 DE2017895A1 (en) | 1969-04-15 | 1970-04-14 | Process for the preparation of diaminodiarylmethanes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1915969A GB1234145A (en) | 1969-04-15 | 1969-04-15 | Manufacture of methylene bridged polyarylamines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1234145A true GB1234145A (en) | 1971-06-03 |
Family
ID=10124752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1915969A Expired GB1234145A (en) | 1969-04-15 | 1969-04-15 | Manufacture of methylene bridged polyarylamines |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2017895A1 (en) |
GB (1) | GB1234145A (en) |
NL (1) | NL7005175A (en) |
-
1969
- 1969-04-15 GB GB1915969A patent/GB1234145A/en not_active Expired
-
1970
- 1970-04-10 NL NL7005175A patent/NL7005175A/xx unknown
- 1970-04-14 DE DE19702017895 patent/DE2017895A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2017895A1 (en) | 1970-10-15 |
NL7005175A (en) | 1970-10-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |