| 摘要 |
A lubricant contains (A1) 0.2-1.8 wt. % of polyvinyl alcohol and /or (A2) 0.2-3% of a polyvinyl alcohol modified by an oxidising agent and contg., in addn. to OH gps., keto gps., COOH gps. and/or carboxylate ion gps., and opt. aldehyde gps. and/or olefin gps. conjugated with keto gps., (B1) 1-45% of water-insol. fatty acid salts in which at least 65% has a chain length of at least 16C, and (B2) 0-1.5% of water-sol. alkali metal soaps and/or (C1) 1-6% of a glass-forming borate and/or (C2) 1-6% of boric acid esters of polyvinyl alcohols (A1) and/or (A2), and (D) 0-1% of a surfactant.
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