| 摘要 |
<p>Organopolysiloxane fine particles mainly made of a polysiloxane having hydrocarbon groups (a) directly bonded to silicon atoms and OH groups (b) directly bonded to silicon atoms, characterized in that: (i) the amount of carbon contained in the hydrocarbon groups (a) is 5 to 35 % by weight based on the fine particles, (ii) the amount of the OH groups (b) is 1 to 8 milliequivalents per gram of the fine particles, (iii) the 10 % compressive modulus is 150 to 900 Kg/mm2, (iv) the mean compressive deformation (Cr)m is 20 to 60 %, (v) the mean elastic recovery (Rr)m is 60 to 90 %, and (vi) the mean particle diameter is 0.5 to 50 νm.</p> |
