| 摘要 |
PURPOSE:To easily handle without stickiness and to improve drilling properties by forming aqueous soluble lubricant of ester of polyoxyethylene. CONSTITUTION:Ester of polyoxyethylene of aqueous soluble lubricant is generally obtained by addition polymerizing ethylene oxide to higher aliphatic acid. More specifically, polyoxyethylene monolaurate, polyoxyethylene monosquarate, polyoxyethylene monooleate, polyoxyethylene cattle fatty acid ester, etc., are exemplified. As a method of disposing the lubricant in a laminate, the lubricant is merely suitably heated, warmed or formed in a coating layer having 0.01-3mm of thickness as aqueous solution. Paper, plastic nonwoven fabric, porous metal sheet, etc., is suitably heated or warmed or disposed as a sheet having 0.01-3mm of thickness immersed with aqueous soluble lubricant as aqueous solution. |
