MODIFIED SILICONE RUBBER FOR USE IN THE SANITATION OF SEWERS IN CONJUNCTION WITH SPECIALLY EQUIPPED PACKERS

摘要

The present invention relates to modified silicone rubber containing, as internal mould release agent, a linear polysiloxane having the following structures or in which R stands for methyl or phenyl, R' for methyl and R" for phenyl and y and x are adjusted to produce a viscosity of from 50 to 2000 mPa.s at 25.degree.C and result in a methyl to phenyl ratio in the polysiloxane of 2.5 to 0.6 and the use of said modified silicone rubber for the production of packers fox sealing damaged sewer systems. Le A 27 686