| 摘要 |
<p>The polycarbonate of the invention includes ones based on sucrose, oligosaccharides other than it, and monosaccharides each having a specified cyclic structure; ones derived from specified saccharides not containing any cyclic structure; ones having a skeleton of pentaerythritol, neopentyl glycol or trimethylolethane; and specified ones. The lubricant and electrical insulation oil of the invention contain the polycarbonate.</p> |
