| 摘要 |
PROBLEM TO BE SOLVED: To obtain a biological lubricant having a sufficient moisture retaining property, slipperiness, nonstringiness and high safeness to organisms by incorporating a copolymer having a phosphoryl choline analogous group in a side chain represented by a specific formula. SOLUTION: In a water soluble lubricant for an organisms capable of retaining lubricity, preventing the vagina from drying, retaining appropriately lubricity improvement at the time of a sexual intercourse, by incorporating a copolymer having a phosphoryl cholin analogous group in a side chain, a biological lubricant is prepared. In the formula, R1 to R3 may be the same or different group, representing hydrogen or a 1-8C alkyl. As the 1-8C alkyl, methyl, ethyl, propyl, butyl, pentyl, octyl or the like can be cited. The methyl group is most preferable. m is an integer of 1 to 4, and ethylene, or propylene is preferable because there is no remarkable degradation in hydrophilicity and it is easily available. |
