| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an addition curing silicone rubber composition giving a cured material generating reduced amount of a low molecular weight siloxane component volatilizing from the cured product and free from the problems such as clouding or haze, contact fault, adhesion failure, and hydrophobicization of the surface caused by the deposition of the volatilized low-molecular weight siloxane component on the surrounding surfaces, and to provide a cured material of the composition. <P>SOLUTION: The addition curing silicone rubber composition comprises; (A) 100 pts.mass of an organopolysiloxane containing at least two alkenyl groups bonded to a silicon atom in one molecule; (B) 0.3-20 pts.mass of an organohydrogenpolysiloxane containing at least two SiH functional groups in one molecule; and (C) a catalytic amount of an addition reaction catalyst, wherein the content of the organopolysiloxane having a degree of polymerization of≤10 and containing at least one SiH functional group in one molecule is≤0.5 mass% based on the sum of the components (A), (B) and (C). The invention further provides a cured silicone rubber obtained by curing the composition. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
