GB255692A - Improved manufacture of phenolic condensation products - Google Patents

Improved manufacture of phenolic condensation products

Info

Publication number
GB255692A
GB255692A GB2662425A GB2662425A GB255692A GB 255692 A GB255692 A GB 255692A GB 2662425 A GB2662425 A GB 2662425A GB 2662425 A GB2662425 A GB 2662425A GB 255692 A GB255692 A GB 255692A
Authority
GB
United Kingdom
Prior art keywords
resin
ammonium chloride
hexamethylenetetramine
phenol
ammonia
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
GB2662425A
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.)
S Karpen and Bros
Original Assignee
S Karpen and Bros
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 S Karpen and Bros filed Critical S Karpen and Bros
Priority to GB2662425A priority Critical patent/GB255692A/en
Publication of GB255692A publication Critical patent/GB255692A/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
    • C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
    • C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
    • C08G8/10—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with phenol

Abstract

255,692. Wade, H., (Karpen & Bros., S.). Oct. 23, 1925. Drawings to Specification. Phenol-aldehyde condensation products. - A fusible soluble condensation product is formed by digesting a phenolic body, such as phenol, a cresol or a naphthol, with a solution of hexamethylenetetramine and ammonium chloride at a temperature of about 100‹ C., the phenolic body being used in such excess that the resin formed contains about 1.5 phenolic groups to each methylene group, and the solution of hexamethylenetetramine and ammonium chloride utilized being that resulting from the interaction of methyl chloride and aqueous ammonia, the large excess of the latter used in the reaction being first distilled off. The ammonia liberated during the formation of the resin is recovered, and the aqueous ammonium chloride is decanted off from the resin and treated with hydrated lime to convert it to ammonia, the ammonia being caused to react with more methylene chloride to produce a further solution of hexamethylenetetramine and ammonium chloride for the continuation of the process. All ammonium chloride is removed from the resin by kneading or agitating it with water, and all water and a part of the free phenol then distilled off, either by boiling or by blowing air through the heated resin. The resin formed is unchanged by boiling, and, after purification, may be converted to an insoluble and infusible resin by heat after the addition of an active methylene body, such as formaldehyde or hexamethylenetetramine. Or the resin, after the addition of a methylene body, may be mixed with fillers or taken up in a suitable solvent to form a varnish. The proportions of hexamethylenetetramine and phenol used in the formation of the resin mav be varied, and equimolecular proportions may be employed, but the insoluble infusible resin then formed cannot readily be freed from water and ammonium chloride. A flow sheet of the apparatus is included in the Specification. Specifications 220,985, 235,015, and 246,416 are referred to.
GB2662425A 1925-10-23 1925-10-23 Improved manufacture of phenolic condensation products Expired GB255692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2662425A GB255692A (en) 1925-10-23 1925-10-23 Improved manufacture of phenolic condensation products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2662425A GB255692A (en) 1925-10-23 1925-10-23 Improved manufacture of phenolic condensation products

Publications (1)

Publication Number Publication Date
GB255692A true GB255692A (en) 1926-07-29

Family

ID=10246548

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2662425A Expired GB255692A (en) 1925-10-23 1925-10-23 Improved manufacture of phenolic condensation products

Country Status (1)

Country Link
GB (1) GB255692A (en)

Similar Documents

Publication Publication Date Title
GB255692A (en) Improved manufacture of phenolic condensation products
US1640363A (en) Process for preparing rubber-containing plastics and products obtained thereby
US1790461A (en) of chicago
US2575518A (en) Ion exchange material and use thereof
US1799954A (en) Urea condensation product
US1946459A (en) Method for producing synthetic resin
US1080188A (en) Process for making an anhydrous reaction product of phenol and formaldehyde.
US1543369A (en) Process of producing a phenolic condensation product
US1705495A (en) And donald s
US2289478A (en) Process of making phenolic resins direct from tar acid oils
US2056453A (en) Resinous materials and processes for hardening and molding them
US1230829A (en) Artificial resin and process of making the same.
DE950155C (en) Process for the production of curable synthetic resins
US1956530A (en) Cold resinification of phenol alcohols
US2010773A (en) Process for producing synthetic resins and product therefrom
US1710722A (en) Method of producing phenolic condensation products
US1793311A (en) Synthetic resin complex from chlorinated toluol and phenol and process of making same
GB245703A (en) Improved manufacture of phenolic condensation products
US1645226A (en) Production of phenol-methylene resins and alcohol from methylals
GB278684A (en) Improved treatment of hydrated cellulose
SU23617A1 (en) A method of making artificial resin
GB280520A (en)
US1418718A (en) Process of making a phenolic condensation product
US1726650A (en) Method of producing phenolic condensation products
US1462771A (en) Phenolic condensation product