GB955449A - Process for the production of acetone-formaldehyde condensation products - Google Patents

Process for the production of acetone-formaldehyde condensation products

Info

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
Application number
GB2707562A
Inventor
Theodor Waag
Willy Kohler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Filmfabrik Wolfen VEB
Original Assignee
Filmfabrik Wolfen VEB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Filmfabrik Wolfen VEB filed Critical Filmfabrik Wolfen VEB
Priority to GB2707562A priority Critical patent/GB955449A/en
Publication of GB955449A publication Critical patent/GB955449A/en
Expired legal-status Critical Current

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.
GB2707562A 1962-07-13 1962-07-13 Process for the production of acetone-formaldehyde condensation products Expired GB955449A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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