| abstract |
Process for low pressure injection molding of organopolysiloxane compositions. This process is characterized in that the organopolysiloxane compositions have a viscosity between 4000 and 55,000 Pa.s at 25.degree.C, and are formed by mixing 100 parts of diorganopolysiloxane oils with viscosity 500 to 300,000 mPa.s at 25.degree.C, 10 to 75 parts of reinforcing silicas with a specific surface of at least 50 m2 / g, 1 to 20 parts of antistructuring agents and 0.1 to 4 parts of 2,4-dichloro peroxide benzoyl, and in that the molding is carried out between 125.degree.C and 225.degree.C. This process provides a molding cycle time of less than 25 seconds. |