GB795012A - Improvements in the production of formaldehyde-ketone condensation products - Google Patents
Improvements in the production of formaldehyde-ketone condensation productsInfo
- Publication number
- GB795012A GB795012A GB3185355A GB3185355A GB795012A GB 795012 A GB795012 A GB 795012A GB 3185355 A GB3185355 A GB 3185355A GB 3185355 A GB3185355 A GB 3185355A GB 795012 A GB795012 A GB 795012A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formaldehyde
- isopropyl
- examples
- mols
- diethyl
- 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
- C08G6/00—Condensation polymers of aldehydes or ketones only
- C08G6/02—Condensation polymers of aldehydes or ketones only of aldehydes with ketones
Abstract
Fatty-aromatic ketone-formaldehyde condensation polymers are prepared by reacting 1-1.5 mols. of formaldehyde with 1 mol. of an acetophenone substituted in the aromatic nucleus by one or more aliphatic radicals having in all 3-9 carbon atoms. Preferred reaction conditions are 50-100 DEG C. in the presence of 0.1-1.0 mols. of alkali in aqueous or alcoholic solution or in alcoholic solution of alkali alcoholate. Formaldehyde may be formalin or paraformaldehyde. Ketones specified are isopropyl-, tertiary butyl-, hexyl-, methyl ethyl-, diethyl-, methyl isopropyl-, di-isopropyl-, trimethyl-, triethyl-, tri-isopropyl- and (a ,a -diethyl) ethylacetophenones. The products may form lacquers with nitrocellulose, alkyd resins or linseed oil. Many of the products are soluble in gasoline, octane, lignosin, benzene, carbon tetrachloride, ethyl alcohol, ethyl acetate and methyl ethyl ketone. Many examples are given, using various ketones: most of the examples use paraformaldehyde and solutions of Na or NaOH in MeOH. Examples (4) and (13) use aqueous formaldehyde; Example (12) uses HCl gas, EtOH and glacial acetic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3185355A GB795012A (en) | 1955-11-08 | 1955-11-08 | Improvements in the production of formaldehyde-ketone condensation products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3185355A GB795012A (en) | 1955-11-08 | 1955-11-08 | Improvements in the production of formaldehyde-ketone condensation products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB795012A true GB795012A (en) | 1958-05-14 |
Family
ID=10329371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3185355A Expired GB795012A (en) | 1955-11-08 | 1955-11-08 | Improvements in the production of formaldehyde-ketone condensation products |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB795012A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3329654A (en) * | 1957-12-12 | 1967-07-04 | Rheinpreussen Ag | Production of synthetic formaldehydeketone resins |
-
1955
- 1955-11-08 GB GB3185355A patent/GB795012A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3329654A (en) * | 1957-12-12 | 1967-07-04 | Rheinpreussen Ag | Production of synthetic formaldehydeketone resins |
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