GB524125A - Therapeutic preparations and process for making same - Google Patents

Therapeutic preparations and process for making same

Info

Publication number
GB524125A
GB524125A GB229639A GB229639A GB524125A GB 524125 A GB524125 A GB 524125A GB 229639 A GB229639 A GB 229639A GB 229639 A GB229639 A GB 229639A GB 524125 A GB524125 A GB 524125A
Authority
GB
United Kingdom
Prior art keywords
urea
phenol
alcohol
formaldehyde
excess
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
GB229639A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB229639A priority Critical patent/GB524125A/en
Publication of GB524125A publication Critical patent/GB524125A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
    • A61K9/7015—Drug-containing film-forming compositions, e.g. spray-on
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/34—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers

Abstract

524,125. Ointments. BEUTNER, R. Jan. 23, 1939, No. 2296. [Class 81 (i)] [Also in Group IV] A composition suitable for use as a drying ointment is prepared by forming in a solution of an alcohol-soluble phenol-aldehyde or a phenolketone resin a gel of an alcohol-insoluble ureaaldehyde or urea ketone resin ; alternatively, in a solution of a urea-aldehyde or ketone resin in the water soluble state there is formed a gel of an alcohol insoluble phenol aldehyde. or ketone resin. The first-mentioned composition may be prepared by mixing a phenol with considerable excess of formaldehyde and an alkaline condensing agent, heating for ¢ to 1 hour, evaporating most of the water, adding sufficient urea or thiourea to combine with the excess formaldehyde and heating, but not sufficiently to produce the gel condition ; the alkaline condensing agent may be neutralized or washed out and alcohol or other solvent is added whereafter on standing the urea-aldehyde compound will precipitate and transform the alcohol solution into a gel. Or the urea may be first condensed with excess aldehyde and the phenol then added. Emulsifying agents may be added to the ointments and stabilizing agents, e.g. sodium salicylate or sodium benzoate. In producing a composition of the alternative type in which insoluble phenol resin is suspended in soluble urea-resin, phenol, excess of formaldehyde and soda are heated under reflux, 90 per cent of the water of the formaldehyde is distilled off, urea is added to combine with the formaldehyde and after heating the alkali is neutralized with an acid which may be in excess ; the mass is heated to 100‹C. and the hot mass is mixed with aqueous alcohol. The solution formed sets to a jelly on cooling.
GB229639A 1939-01-23 1939-01-23 Therapeutic preparations and process for making same Expired GB524125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB229639A GB524125A (en) 1939-01-23 1939-01-23 Therapeutic preparations and process for making same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB229639A GB524125A (en) 1939-01-23 1939-01-23 Therapeutic preparations and process for making same

Publications (1)

Publication Number Publication Date
GB524125A true GB524125A (en) 1940-07-30

Family

ID=9737068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB229639A Expired GB524125A (en) 1939-01-23 1939-01-23 Therapeutic preparations and process for making same

Country Status (1)

Country Link
GB (1) GB524125A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684321A (en) * 1950-09-28 1954-07-20 Rohm & Haas Skin treating ion exchange mixture
US4252785A (en) * 1979-07-09 1981-02-24 Hexcel Corporation Controlled release composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684321A (en) * 1950-09-28 1954-07-20 Rohm & Haas Skin treating ion exchange mixture
US4252785A (en) * 1979-07-09 1981-02-24 Hexcel Corporation Controlled release composition

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