DE587982C - Process for the production of a coating agent which protects metals against corrosion - Google Patents

Process for the production of a coating agent which protects metals against corrosion

Info

Publication number
DE587982C
DE587982C DEA69327D DEA0069327D DE587982C DE 587982 C DE587982 C DE 587982C DE A69327 D DEA69327 D DE A69327D DE A0069327 D DEA0069327 D DE A0069327D DE 587982 C DE587982 C DE 587982C
Authority
DE
Germany
Prior art keywords
production
coating agent
against corrosion
metals against
protects
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
DEA69327D
Other languages
German (de)
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.)
GERHARD HEINRICH AVERBECK
Original Assignee
GERHARD HEINRICH AVERBECK
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 GERHARD HEINRICH AVERBECK filed Critical GERHARD HEINRICH AVERBECK
Priority to DEA69327D priority Critical patent/DE587982C/en
Application granted granted Critical
Publication of DE587982C publication Critical patent/DE587982C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
    • C09D101/08—Cellulose derivatives
    • C09D101/16—Esters of inorganic acids
    • C09D101/18—Cellulose nitrate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Description

Verfahren zur Herstellung eines Metalle gegen Korrosion schützenden LJberzugsmittels Bekanntlich lassen sich durch Lösungen von Celluloseestern, z. B. Nitrocellulose mit oder ohne Pigmentzusatz, metallschützende Überzüge erzielen. Die verhältnismäßig rascheVerdunstung der organischen Lösungsmittel bedingt manche Vorteile, wie Zeitersparnis, jedoch ergeben sich aus dem raschen Verdunsten auch insofern gewisse Übelstände, als das ,gegebenenfalls auf der zu streichenden Fläche bereits vorhandene oder die .durch Verdunsten der niedrig siedenden Lösungsmittel auf bzw. iin nstrichflin niedergeschlagene Feuchtigkeit das Häutchen nicht mehr durchdringen kann, also auf der Metallfläche bzw. im Film verbleibt. Insbesondere sind die als Lösungsmittel ausgedehnt Anwendung findenden niedermolekularen Alkylester an, sich äußerst hygroskopisch und werden vielfach. bereits durch Wasser verseift, so daß sie indem trocknenden Überzug freie Säure entstehen lassen. Die üblichen Folgeerscheinungen aller dieser Vorgänge sind Trübung, Korrosion und das bekannte Abblättern bzw. Abplatzen.Process for the production of a metal against corrosion It is known that solutions of cellulose esters, e.g. B. nitrocellulose with or without added pigment, achieve metal protective coatings. The relatively rapid evaporation of organic solvents causes some Advantages such as time savings, however, also result from the rapid evaporation insofar as certain inconveniences, as that, possibly on the surface to be painted already existing or .by evaporation of the low-boiling solvents Moisture precipitated on or in the line no longer affects the membrane can penetrate, i.e. remains on the metal surface or in the film. In particular are the low molecular weight alkyl esters, which are used extensively as solvents to be extremely hygroscopic and multiply. already saponified by water, so that they give rise to free acid in the drying coating. The usual Consequences of all these processes are cloudiness, corrosion and the well-known Peeling or chipping.

Diese Nachteile werden erfindungsgemäß dadurch beseitigt, daß die Lösung der Celluloseester in den organischen, verhältnismäßig rasch verdunstenden Lösungsmitteln unter Beigabe wasserentziehender Mittel erfolgt, die nach ,dein Auftrag des Überzugsmittels unter bzw. in dem sich bildenden Film vorhandene bzw. niedergeschlagene Feuchtigkeit chemisch oder physikalisch binden.These disadvantages are eliminated according to the invention in that the Solution of the cellulose ester in the organic, relatively rapidly evaporating Solvents with the addition of dehydrating agents after, your order of the coating agent present or deposited under or in the film being formed Bind moisture chemically or physically.

Ausführung sbeispiel Einer Lösung von To kg Nitrocellulose in 7o kg Essigester und 15 kg Butylalkohol oder Amylacetat werden außer 7 kg Aluminiumbronze ungefähr 2 kg :gebrannter Gips oder Zement, je nach dem Grade der Feuchtigkeit mehr oder weniger, zugesetzt.Execution example of a solution of To kg of nitrocellulose in 70 kg Acetate and 15 kg of butyl alcohol or amyl acetate are used in addition to 7 kg of aluminum bronze about 2 kg: plaster of paris or cement, more depending on the degree of moisture or less, added.

Claims (1)

PATRNTANSPRUCII: Verfahren zurHerstellung einesMetalle gegen Korrosion schützenden Überzugsmittels aus Lösungen von Celluloseestern in organischen, verhältnismäßig rasch verdunstenden Lösungsmitteln, dadurch gekennzeichnet, daß den Lösungen wasserentziehende Stoffe zugesetzt werden.PATRNTANSPRUCII: Process for the production of a metal against corrosion protective coating agent from solutions of cellulose esters in organic, relatively rapidly evaporating solvents, characterized in that the solutions dehydrate Substances are added.
DEA69327D 1932-04-29 1932-04-29 Process for the production of a coating agent which protects metals against corrosion Expired DE587982C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA69327D DE587982C (en) 1932-04-29 1932-04-29 Process for the production of a coating agent which protects metals against corrosion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA69327D DE587982C (en) 1932-04-29 1932-04-29 Process for the production of a coating agent which protects metals against corrosion

Publications (1)

Publication Number Publication Date
DE587982C true DE587982C (en) 1933-11-16

Family

ID=6944947

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA69327D Expired DE587982C (en) 1932-04-29 1932-04-29 Process for the production of a coating agent which protects metals against corrosion

Country Status (1)

Country Link
DE (1) DE587982C (en)

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