| 摘要 |
PURPOSE: To enhance characteristics as a tire curing bladder by compounding polydimethylsiloxane having definite properties, at least one component selected from mica, clay or methyl cellulose, and fatty acid in a specific ratio. CONSTITUTION: About 10-700 pts.wt. mica having an average particle size of about 200 meshes or less, about specific pts.wt. kaolin clay having an average particle size of about 400 meshes or less, about 5-100 pts.wt. bentonite clay and about 5-25 pts.wt. methyl cellulose are mixed and the resulting mixture is added to about 5-100 pts.wt. polydimethylsiloxane having a viscosity of about 200,000-1,200,000 at 25 deg.C and, further, about 5-40 pts.wt. fatty acid amide lubricant having a softening point of about 68-86 deg.C by ASTM No.1894-78 is added to obtain a lubricant compsn. for a tire curing bladder. |
