GB955449A - Process for the production of acetone-formaldehyde condensation products - Google Patents
Process for the production of acetone-formaldehyde condensation productsInfo
- Publication number
- GB955449A GB955449A GB2707562A GB2707562A GB955449A GB 955449 A GB955449 A GB 955449A GB 2707562 A GB2707562 A GB 2707562A GB 2707562 A GB2707562 A GB 2707562A GB 955449 A GB955449 A GB 955449A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acetone
- condensation products
- production
- formaldehyde condensation
- per molecule
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
- C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
- C07C45/75—Reactions with formaldehyde
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
Acetone-formaldehyde condensation products which contain 1 to 4 methylol groups per molecule are produced by a two step condensation of acetone and formaldehyde in the presence of an alkaline condensation catalyst, the first step being performed at pH 8-9 and 0 DEG to 20 DEG C. and the second at pH 10-12 at 60 DEG to 100 DEG C. The pH required for said second step may be obtained by adding more alkaline catalyst on completion of the first step. The number of methylol groups per molecule is varied by adjusting the equivalent ratios of the reactants. Examples illustrate the preparation of condensation products having 3.7 to 3.8 and 1.9 to 2.1 methylol groups per molecule. Specifications 361,597, 361,686 and German Specification 223,207 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2707562A GB955449A (en) | 1962-07-13 | 1962-07-13 | Process for the production of acetone-formaldehyde condensation products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2707562A GB955449A (en) | 1962-07-13 | 1962-07-13 | Process for the production of acetone-formaldehyde condensation products |
Publications (1)
Publication Number | Publication Date |
---|---|
GB955449A true GB955449A (en) | 1964-04-15 |
Family
ID=10253755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2707562A Expired GB955449A (en) | 1962-07-13 | 1962-07-13 | Process for the production of acetone-formaldehyde condensation products |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB955449A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3544634A (en) * | 1966-09-15 | 1970-12-01 | Basf Ag | Production of 3-ketobutanol-(1) |
FR2482087A1 (en) * | 1980-04-30 | 1981-11-13 | Clark Chem Corp | PROCESS FOR PRODUCING METHYLOLE KETONES |
-
1962
- 1962-07-13 GB GB2707562A patent/GB955449A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3544634A (en) * | 1966-09-15 | 1970-12-01 | Basf Ag | Production of 3-ketobutanol-(1) |
FR2482087A1 (en) * | 1980-04-30 | 1981-11-13 | Clark Chem Corp | PROCESS FOR PRODUCING METHYLOLE KETONES |
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