Patent ID: 9534093
Date: 2017-01-03
CPC Classifications: B60C,C08F,C08J,C08K,C08L

Claim:
1. A method of producing a rubber compound comprising silica; said method comprising a step of dispersing the silica in a polymer base, and a following step of mixing with curing agents a mixture obtained from dispersing the silica in the polymer base; the method comprising the step of dispersing the silica in the polymer base comprises the following sequence of operations: soaking said polymer base in a liquid silica precursor to form a swollen polymer; adding said swollen polymer to an organic solvent, and continually stirring the swollen polymer solution; adding water and a silica synthesizing catalyst to the swollen polymer solution; precipitating a polymer gel matrix by adding a precipitating agent; separating and washing the precipitated polymer gel matrix.