GB1052702A - - Google Patents
Info
- Publication number
- GB1052702A GB1052702A GB1052702DA GB1052702A GB 1052702 A GB1052702 A GB 1052702A GB 1052702D A GB1052702D A GB 1052702DA GB 1052702 A GB1052702 A GB 1052702A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydroxydiarylketones
- jan
- hydroxy
- groups
- reacting 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.)
- Active
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
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/28—Chemically modified polycondensates
Abstract
1,052,702. Hydroxydiarylketones. IMPERIAL CHEMICAL INDUSTRIES Ltd. Jan. 8, 1965 [Jan. 29, 1964], No. 3819/64. Heading C2C. [Also in Division C3] Compounds comprising hydroxydiarylketone groups linked by methylene groups are obtained by reacting formaldehyde with one or more hydroxydiarylketones of formula R-CO-R<SP>1</SP>. where R and R<SP>1</SP>are the same or different and are phenyl or naphthyl groups, at least one of which has at least one hydroxyl substituent and at least one of which has at least one unsubstituted position ortho or para to the hydroxyl group, in the presence of an acidic or alkaline catalyst. The reaction mixture may include another phenolic compound. In examples a dimer and higher polymers are prepared by reacting formaldehyde and paraformaldehyde with 2 - hydroxy - 4 - n - octyloxybenzophenone, 2 - hydroxy - 5 - methylbenzophenone and 2,4 - dihydroxy - benzophenone, in the presence of toluene-p-sulphonic acid and sodium hydroxide; in one instance phenol is included.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB381964 | 1964-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1052702A true GB1052702A (en) |
Family
ID=9765517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1052702D Active GB1052702A (en) | 1964-01-29 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1570778A1 (en) |
| GB (1) | GB1052702A (en) |
-
0
- GB GB1052702D patent/GB1052702A/en active Active
-
1965
- 1965-01-29 DE DE19651570778 patent/DE1570778A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1570778A1 (en) | 1970-04-16 |
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