| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a water-based lubricant with excellent lubrication and oil separation using a resin with high water solubility and high thickening property. <P>SOLUTION: The lubricant contains alkyl-modified vinyl alcohol-based polymer, the alkyl-modified vinyl alcohol-based polymer including a monomer unit (a) represented by Formula (I), wherein the viscosity-average degree of polymerization is 200-5,000, the saponification degree is 20-99.99 mol%, and the content of the monomer unit (a) is 0.05-5 mol%. (In the Formula (I), R<SP POS="POST">1</SP>represents a linear or branched 8-29C alkyl group, and R<SP POS="POST">2</SP>represents a hydrogen atom or a 1-8C alkyl group). <P>COPYRIGHT: (C)2013,JPO&INPIT |
