DE940545C - Corrosion-preventing admixture to varnishes and paints - Google Patents
Corrosion-preventing admixture to varnishes and paintsInfo
- Publication number
- DE940545C DE940545C DES30142A DES0030142A DE940545C DE 940545 C DE940545 C DE 940545C DE S30142 A DES30142 A DE S30142A DE S0030142 A DES0030142 A DE S0030142A DE 940545 C DE940545 C DE 940545C
- Authority
- DE
- Germany
- Prior art keywords
- corrosion
- varnishes
- paints
- ammonia
- preventing admixture
- 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
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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/086—Organic or non-macromolecular compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
Description
Es ist ein Verfahren zur Darstellung von SiI-azanen vorgeschlagen worden, bei denen als Ausgangsprodukte Verbindungen folgenden Typs verwendet werden:A method for the preparation of SiI-azanes has been proposed, in which as starting products Connections of the following types can be used:
wobei RO sowohl primäre und sekundäre Alkoxygruppen als auch Aroxygruppen sein können, η die Werte von ι bis 3 annehmen kann und X ein Halogenatom ist. Diese Ausgangsstoffe werden in gelöster Form mit trockenem Ammoniakgas oder mit Hilfe von flüssigem Ammoniak in die entsprechenden Kieselsäureamide und anschließend durch Temperaturerhöhung in die entsprechenden Silazane übergeführt, wobei häufig schon Raumtemperatur genügt, um höhermolekulare Verbindungen zu erhalten. where RO can be primary and secondary alkoxy groups as well as aroxy groups, η can assume the values from ι to 3 and X is a halogen atom. These starting materials are converted into the corresponding silicic acid amides in dissolved form with dry ammonia gas or with the aid of liquid ammonia and then converted into the corresponding silazanes by increasing the temperature, with room temperature often being sufficient to obtain higher molecular weight compounds.
Die Erfindung betrifft eine besonders vorteilhafte Verwendungsform von nach diesem Verfahren gewonnenen Stoffen. Erfindungsgemäß werden SiI- ao azane aus mit Ammoniak zur Umsetzung gebrachten Verbindungen des TypsThe invention relates to a particularly advantageous one Form of use of substances obtained by this process. According to the invention SiI ao azanes from compounds of the type reacted with ammonia
(RO)nSiX4-,,,(RO) n SiX 4 - ,,,
wobei RO primäre und sekundäre Alkoxygruppen und Aroxygruppen sind, die Zahl η Werte von ι bis 3 annehmen kann und X ein Halogenatom ist, als korrosionsvenhütende Beimengung zu Lacken und Anstrichstoffen verwendet. Es wurde gefunden, daß eine gewisse Ammoniaktension der Silazane korrosionisverhütend wirkt, wobei im allgemeinen bereits die Luftfeuchtigkeit ischon genügt, um laufend geringe Mengen Ammoniak in Freiheit zu setzen, das seinerseits dann korrosionsverlhütend auf Metalle wirkt.where RO are primary and secondary alkoxy groups and aroxy groups, the number η can assume values from ι to 3 and X is a halogen atom, used as a corrosion-preventing admixture to paints and varnishes. It has been found that a certain amount of ammonia in the silazanes prevents corrosion, the humidity in the air generally being sufficient to continuously release small amounts of ammonia, which in turn has an anti-corrosion effect on metals.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES30142A DE940545C (en) | 1951-12-18 | 1951-12-18 | Corrosion-preventing admixture to varnishes and paints |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES30142A DE940545C (en) | 1951-12-18 | 1951-12-18 | Corrosion-preventing admixture to varnishes and paints |
Publications (1)
Publication Number | Publication Date |
---|---|
DE940545C true DE940545C (en) | 1956-03-22 |
Family
ID=7480033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES30142A Expired DE940545C (en) | 1951-12-18 | 1951-12-18 | Corrosion-preventing admixture to varnishes and paints |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE940545C (en) |
-
1951
- 1951-12-18 DE DES30142A patent/DE940545C/en not_active Expired
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