GB196265A - Improved manufacture of artificial resins - Google Patents

Improved manufacture of artificial resins

Info

Publication number
GB196265A
GB196265A GB8750/23A GB875023A GB196265A GB 196265 A GB196265 A GB 196265A GB 8750/23 A GB8750/23 A GB 8750/23A GB 875023 A GB875023 A GB 875023A GB 196265 A GB196265 A GB 196265A
Authority
GB
United Kingdom
Prior art keywords
ammonia
methylene chloride
improved manufacture
artificial resins
resins
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
GB8750/23A
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.)
HOLZVERKOHLUNGS IND AG
Original Assignee
HOLZVERKOHLUNGS IND AG
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 HOLZVERKOHLUNGS IND AG filed Critical HOLZVERKOHLUNGS IND AG
Publication of GB196265A publication Critical patent/GB196265A/en
Expired legal-status Critical Current

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
    • C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
    • C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes

Abstract

Resins are obtained by the interaction at a temperature above 120 DEG C. of aromatic hydroxy compounds, such as phenols and naphthols, with methylene chloride in the presence of ammonia or of substances which produce ammonia. Usually two or more molecules of ammonia are employed for each molecule of methylene chloride. Other bases, such as sodium hydroxide, may be added to facilitate the reaction. According to the example, phenol is heated for some hours with methylene chloride and aqueous ammonia at a temperature of 150 DEG C., a yellow resinous product being obtained.
GB8750/23A 1922-04-11 1923-03-27 Improved manufacture of artificial resins Expired GB196265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE196265X 1922-04-11

Publications (1)

Publication Number Publication Date
GB196265A true GB196265A (en) 1923-07-26

Family

ID=5753823

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8750/23A Expired GB196265A (en) 1922-04-11 1923-03-27 Improved manufacture of artificial resins

Country Status (1)

Country Link
GB (1) GB196265A (en)

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