CH131963A - Process for the protection of easily oxidizable metals. - Google Patents

Process for the protection of easily oxidizable metals.

Info

Publication number
CH131963A
CH131963A CH131963DA CH131963A CH 131963 A CH131963 A CH 131963A CH 131963D A CH131963D A CH 131963DA CH 131963 A CH131963 A CH 131963A
Authority
CH
Switzerland
Prior art keywords
phenol
oxidizable metals
easily oxidizable
protection
metal
Prior art date
Application number
Other languages
French (fr)
Inventor
Michel Gilbert
Original Assignee
Michel Gilbert
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 Michel Gilbert filed Critical Michel Gilbert
Publication of CH131963A publication Critical patent/CH131963A/en

Links

Landscapes

  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)

Description

  

  Procédé de protection de     métaux    facilement oxydables.    Dans le brevet principal, déposé au     none     du même inventeur et sous le même titre, le       G    mars 1926 et délivré sous le n  118.978, on  a décrit un procédé permettant de     protéger     les     métaux    facilement oxydables, selon lequel  on enduit la surface de la pièce     métalliquë     d'une matière composée au moins en partie  d'un phénol.  



  Dans ce brevet principal on a indiqué  notamment la possibilité d'employer à la  place de phénol seul, des enduits contenant  un phénol.  



  La présente addition se     rapporte    à un per  fectionnement apporté à ce procédé. Selon  l'invention, on emploie, pour former une pel  licule à la surface de l'objet à protéger, un  Enduit contenant une résine synthétique et  un phénol à l'état libre.  



  On sait que l'on a déjà employé pour pro  t6ger les     métaux    oxydables des enduits ou  des laques à base de     bakélite,    cet enduit cons  tituant à lui seul la couche protectrice.  



  Mais dans les enduits de cette sorte, le    phénol n'intervenait pas à l'état libre pour  donner une couche ou pellicule protectrice,  mais seulement à l'état de constituant d'un  corps complexe formant la résine synthétique  elle-même et n'ayant pas. d'action sur le  métal.  



  De ce fait, la production d'une pellicule  protectrice et fortement adhérente de     phénate     de magnésium ou analogue était rendue im  possible.  



  On peut obtenir une protection complète  des objets en métaux tels que le magnésium  en employant un enduit formé en addition  nant une laque ou vernis à base de résine  synthétique, préparée par les moyens habi  tuels, d'une     certaine    quantité de phénol libre.  Ladite solution     constitûe    un enduit qui peut  être étendu à, la surface de la pièce et qui par  son phénol attaque le métal et donne une  couche ou croûte protectrice.  



  Selon la nature du vernis ou de la laque  employée, on peut ensuite, s'il -est désirable,  produire un séchage ou une cuisson du vernis      par les procédés habituellement employés  cet effet.  



  On peut aussi employer un enduit obtenu  en modifiant les conditions habituelles de  préparation des vernis à base de résine syn  thétique, à partir du formol et d'un phénol  (crésol,     ete:)    de manière à laisser subsister  un excès de phénol libre suffisant pour qu'il  se produise une attaque immédiate du métal  lorsqu'on le recouvre de la     substance    ainsi  obtenue.



  Process for the protection of easily oxidizable metals. In the main patent, filed in none by the same inventor and under the same title, March G, 1926 and issued under number 118,978, a process for protecting easily oxidizable metals was described, according to which the surface of the part is coated metal of a material composed at least in part of a phenol.



  In this main patent, the possibility of using, instead of phenol alone, coatings containing a phenol has been indicated in particular.



  The present addition relates to an improvement to this process. According to the invention, a coating containing a synthetic resin and a phenol in the free state is used to form a film on the surface of the object to be protected.



  It is known that bakelite-based coatings or lacquers have already been used to protect oxidizable metals, this coating alone constituting the protective layer.



  But in coatings of this kind, the phenol did not intervene in the free state to give a protective layer or film, but only as a constituent of a complex body forming the synthetic resin itself and not not having. action on the metal.



  As a result, the production of a protective and strongly adherent film of magnesium phenate or the like was made im possible.



  Complete protection of metal objects such as magnesium can be obtained by employing a coating formed by adding a lacquer or varnish based on synthetic resin, prepared by the usual means, with a certain quantity of free phenol. Said solution constitutes a coating which can be extended to the surface of the part and which by its phenol attacks the metal and gives a protective layer or crust.



  Depending on the nature of the varnish or the lacquer used, it is then possible, if it is desirable, to produce a drying or baking of the varnish by the processes usually employed for this purpose.



  It is also possible to use a coating obtained by modifying the usual conditions for preparing varnishes based on synthetic resin, from formalin and a phenol (cresol, ete :) so as to leave an excess of free phenol sufficient for that an immediate attack takes place on the metal when it is covered with the substance thus obtained.

 

Claims (1)

REVENDICATION Procédé de protection de métaux facile ment oxydables selon la revendication du brevet principal, caractérisé par le fait que l'on recouvre ce métal d'un vernis contenant une résine synthétique et un phénol à l'état libre. SOUS-REVENDICATION Procédé de protection conforme à la re vendication, caractérisé par le fait que l'on emploie un vernis à base de résine synthéti que, préparé en partant du formol et d'un phénol, en laissant un excès de phénol libre, qui attaque immédiatement le métal lorsqu'on recouvre l'objet à protéger du vernis obtenu. CLAIM A method for protecting easily oxidizable metals according to claim of the main patent, characterized in that this metal is covered with a varnish containing a synthetic resin and a phenol in the free state. SUB-CLAIM Protection process in accordance with the claim, characterized in that a varnish based on synthetic resin is used, prepared starting from formalin and a phenol, leaving an excess of free phenol, which immediately attacks the metal when the object to be protected is covered with the varnish obtained.
CH131963D 1927-03-12 1928-03-10 Process for the protection of easily oxidizable metals. CH131963A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR131963X 1927-03-12
CH118978T 1928-03-10

Publications (1)

Publication Number Publication Date
CH131963A true CH131963A (en) 1929-03-15

Family

ID=25709133

Family Applications (1)

Application Number Title Priority Date Filing Date
CH131963D CH131963A (en) 1927-03-12 1928-03-10 Process for the protection of easily oxidizable metals.

Country Status (1)

Country Link
CH (1) CH131963A (en)

Similar Documents

Publication Publication Date Title
FR2512841A1 (en) STEEL SHEET COATED WITH MULTIPLE LAYERS HAVING GOOD RESISTANCE TO CORROSION, GOOD ABILITY TO RECEIVE PAINT AND GOOD RESISTANCE TO CORROSION AFTER APPLICATION OF PAINT LAYER
BE545058A (en) TREATMENT OF MATERIALS IN ORDER TO IMPROVE THEIR HYDROFUGAL PROPERTIES
RU2009044C1 (en) Method of continuous coating of steel band by dipping and article from steel produced by this method
CH131963A (en) Process for the protection of easily oxidizable metals.
FR2403370A1 (en) ACRYLIC ENAMEL COATING COMPOSITIONS WITH A CONTENT OF NON-VOLATILE PRODUCTS REDUCIBLE BY WATER, LOW TEMPERATURE BAKING
US2201981A (en) Protective coating
US3058206A (en) Aluminum coating of ferrous metal and resulting product
FR2655060A1 (en) Process and compositions for improving the corrosion resistance of metals and alloys
EP3607010A1 (en) Rust conversion agent
JP5007424B2 (en) Projection material for mechanical plating and highly corrosion-resistant coating
BE332649A (en) PROCESS FOR PROTECTING EASILY OXIDATED METALS, SUCH AS THOSE BASED ON MAGNESIUM, ALUMINUM, CALCIUM, ETC.
JP6347531B1 (en) Film formation method
US1146214A (en) Protective coating and method of applying same.
US1674694A (en) Protective composition for metal-coating baths
US1477922A (en) Treating magnesium and alloys comprising the same
FR3096686B1 (en) SOLID COMPOSITION FOR FORMING SURFACE COATINGS
SU908936A1 (en) Process for producing zinc coatings on metal products
BE496964A (en)
GB468753A (en) Improvements in and relating to the coating of metal and other surfaces
US317369A (en) Albeet bbuce jot
CH720102A2 (en) Method for producing an article comprising a colored abrasion-resistant coating, and article comprising such a coating
FR2549090A1 (en) Process for protecting a metal surface by electrolytic deposition of a thick layer of microfissured chromium and articles obtained
US841573A (en) Anticorrosive composition.
EP4306678A1 (en) Method for producing a black and self-healing workpiece having a precious metal substrate, and workpiece obtained
RU2457222C1 (en) Protective coating for metal surfaces