DE3426449A1 - Process for the preparation of surface coating materials and enamel paints based on secondary raw materials (waste materials) and polystyrene foam (Styropor) - Google Patents

Abstract

The invention relates to the use of polystyrene foam packaging material which has been thrown away after its use and is suitable for the preparation of surface coating materials and enamel paints. From 1 m<3> of such waste materials, 300-400 kg of surface coating materials or 600-700 kg of enamel paints can be prepared in any paint factory. In the production of polystyrene foam, Porofor is used, which evolves a large amount of nitrogen and forms the foam structure. There is evidence that Styropor is a somewhat plasticised polystyrene which has a thin-walled structure and is highly suitable as a raw material for the preparation of surface coating materials and enamel paints.

Description

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PROCESS FOR MANUFACTURING LACQUERS AND ENAMELS ON THE BASE VO @ SECONDARY RAW @ MATERIALS (WASTE MATERIALS) MADE FROM POROPCLYSTYROL (STYROPOR) This invention belongs to a method of using packaging material made of poropolystyrene, that ends up in the garbage after its use in larger quantities and that so far found no further use.

The method consists in that unconsumed poropolystyrene waste crushed and in a solvent with the addition of plasticizers, Tars, rubbers, pigments, solvents and thinners are dissolved, whereby different varnish dyes are obtained.

The varnishes and E @ aille paints made on the basis of poropolystyrene belong to the reason of "volatile paints", which only after the volatilization of the solvent form a film.

The poropolystyrene lacquers have a solution according to their use of polystyrene, plasticizers, tars, rubbers in a mixture of volatile solvents and thinners. In terms of their appearance, these varnishes are a transparent viscous liquid with the characteristic smell of the one used Solvents and thinners.

In this way, varnishes and enamel paints are obtained from poropolystyrene waste for wood, metal, leather, rubber and paints for insulating purposes.

The manufacturing process for Poropoivstvrollacken and Poropolystyrene enamel paints is straightforward and does not require bulky and expensive equipment. He can be in everyone any paint factory and consists of the following operations: 1. Dissolving the poropolystyrene and obtaining a 25 to 30 percent poropolystyrene solution.

?. Mixing the poropolystyrene solution with plasticizers, Tars, rubbers, pigments with diluents as specified of the lacquer and the enamel and according to the elaborated and tested recipes.

3. Cleaning of varnishes and enamel paints. and type determination.

4. Packing according to a certain weight.

In the Technolog @ scher scheme for the production of varnishes and enamel colors is used reactor, for obtaining various regimes (favorable conditions of Temperatures) for the process of dissolving poropolystyrene with various types Solvents. Consider using the reactor for plasticizing of polystyrene with the help of solutions of rubber. It is known that plasticizing. Polystyrene with nitrile rubber is carried out on rolling machines at a large During production Poropolyst @ irol. Polystyrene is mixed with Porofor processed at 150 ° and pressure 250-300 kg / in with a large amount of evolved nitrogen. Group @ -C # N Has a proBe reaction force. @ there is evidence that styrofoam i @ t some plasticized polystyrene, which has and is very thin-walled structure Well-suited as a raw material for the manufacture of lacquers and enamel paints.

FOR EXAMPLE SCHEME FOR THE PRODUCTION OF LACQUERS AND ENAMEL PAINTS USING POROPOLYSTYRENE WASTE The solvent leaks from tank 1 by inert gas pressure in the measuring container 2, from which it flows into the reactor 3 flows to dissolve the poropolystyrene waste.

Before that, the reactor is filled with a certain amount of poropolystyrene waste loaded so that the basic raw material is a 25 to 30 percent poropolystyrene solution receives.

We use dichloromethane or other solvents as solvents, because the poropolystyrene has a thin-walled structure and is easily dissolved can.

We use a standard reactor as the apparatus for dissolving the poropolystyrene With a large capacity, since 1 1 poropolystyrene weighs approx. 35 g to intensify of the process, the dissolution, a little heating, an intensified mixing and to be able to hermetize the process. Comes out of reactor 3 the solvent in the agitator 4, where the plasticizer and other substances can be added according to the recipe.

After all the ingredients have been mixed, the varnish obtained is in the Supercentrifuge 5 is centrifuged for cleaning and then enters tank 6 for the finished paint, from where it is brought to storage 13 with the pump 7. For the production of enamel paints, it goes into the measuring container older than 8. From the measuring container the lacquer escapes self-flowing into the agitator 9, where it is mixed with color paste he follows. The color paste is prepared in a special department, in ball mills, where the trituration of the pig @ duck with the plasticizer is carried out. The E @ aille color obtained is centrifuged in the supercentrifuge 10 from the agitator 9 and then stored in the tank 11, from where they are transferred to the tank 13 with the pump 12 for monochrome enamel is @pumped. After the warehouse and quality control The lacquers and enamel colors are stored in WaaFe 14 and bottling 15.

Claims (1)

Claim. Process for the production of lacquers and @maillefarben thereby kehnzeichen that poropolystyrene (waste materials) for the production of varnishes and enamel paints ve @ is applied.