CH304468A - Method for casting a molded plastic body containing an insert. - Google Patents

Description

  

  



  Method for casting a plastic molded body containing an insert.



   The present invention is a method for casting, e.g. B. for injection molding, one an insert, e.g. B. from fiber, containing plastic molded body, using liquid plastic and a z. B. one-part or multi-part form.



   The inventive method consists in that the mold on at least part of its surface facing the cavity to be poured with a z. B. pigmented, transparent or colored synthetic resin coated and then the insert is introduced into the cavity, the latter is filled with plastic and then the molded body is cured.



   Covering the mold or part of it on its surface facing the cavity to be poured with synthetic resin can be done by dewing, painting or spraying. The result is that the insert, which expediently consists of fibrous material, for example glass fibers, or of organic fibers, is not recognizable from the outside on the finished product and the aesthetic effect is not impaired.

   The process can be carried out, for example, as follows:
The surface of the one-part or multi-part mold facing the cavity to be poured is coated in the manner mentioned with a pigmented synthetic resin. The dry or already impregnated fiber insert is then baked into the cavity.



  If the dry fiber insert is inserted, it is impregnated afterwards, like injection of plastic into the forum.



  After this latter operation, the plastic is cured in a manner known per se. A synthetic resin mixture is used for the purpose, in which the process can be carried out at room temperature with or without the use of additional heat and pressure. The liquid
Synthetic resin is an appropriate hardener for this purpose, for example a
Peroxide added. The synthetic resin can be colored as desired by adding dye.



   The forms can be a. us wood, plastic,
Glass, plaster, cement, rubber or metal exist.



   The method described can be used for
Production of paving tiles, corrugated sheets,
Ski covers, refrigerator housings, film components, containers, furniture and body parts, boat covers and components, tubes and profiled rails and for helmets, marker boards, lighting fixtures, etc. can be used.



   PATENT CLAIM:
Method for casting a plastic molded body containing an insert in a
Form using-liquid
Plastic, marked dadureh, dā die
Form coated with a synthetic resin and at least on part of its surface facing the cavity to be poured

** WARNING ** End of DESC field could overlap beginning of CLMS **.



 

Claims (1)

** WARNING ** Beginning of CLMS field could overlap end of DESC **. Method for casting a plastic molded body containing an insert. The present invention is a method for casting, e.g. B. for injection molding, one an insert, e.g. B. from fiber, containing plastic molded body, using liquid plastic and a z. B. one-part or multi-part form. The inventive method consists in that the mold on at least part of its surface facing the cavity to be poured with a z. B. pigmented, transparent or colored synthetic resin coated and then the insert is introduced into the cavity, the latter is filled with plastic and then the molded body is cured. Covering the mold or part of it on its surface facing the cavity to be poured with synthetic resin can be done by dewing, painting or spraying. The result is that the insert, which expediently consists of fibrous material, for example glass fibers, or of organic fibers, is not recognizable from the outside on the finished product and the aesthetic effect is not impaired. The process can be carried out, for example, as follows: The surface of the one-part or multi-part mold facing the cavity to be poured is coated in the manner mentioned with a pigmented synthetic resin. The dry or already impregnated fiber insert is then baked into the cavity. If the dry fiber insert is inserted, it is impregnated afterwards, like injection of plastic into the forum. After this latter operation, the plastic is cured in a manner known per se. A synthetic resin mixture is used for the purpose, in which the process can be carried out at room temperature with or without the use of additional heat and pressure. The liquid Synthetic resin is an appropriate hardener for this purpose, for example a Peroxide added. The synthetic resin can be colored as desired by adding dye. The forms can a. us wood, plastic, Glass, plaster, cement, rubber or metal exist. The method described can be used for Manufacture of tile coverings, corrugated sheets, Ski covers, refrigerator housings, film components, containers, furniture and body parts, boat covers and components, tubes and profiled rails and for helmets, marker boards, lighting fixtures, etc., can be used. PATENT CLAIM: Method for casting a plastic molded body containing an insert in a Form using-by-liquid Plastic, marked dadureh, dā die The mold is coated with a synthetic resin on at least part of its surface facing the cavity to be poured and the insert is then introduced into the cavity, the latter is filled with plastic and the molded body is then cured. SUBClaims: 1. The method according to claim, as marked by that transparent. Resin is used. 2. The method according to patent claim, characterized in that colored synthetic resin is used. 3. The method according to claim, characterized in that the insert consists of fiber, 4. The method according to Unteransprueh 3, characterized in that the fibrous insert is impregnated with plastic before being introduced into the cavity. 5. The method according to claim, characterized in that the coating with plastic takes place by painting. 6. The method according to claim, characterized in that the coating with plastic takes place by injection molding. 7. The method according to claim, characterized in that there. ¯ The plastic is coated by dipping.