| 摘要 |
PROBLEM TO BE SOLVED: To provide a lubricant for plastic working, excellent in plastic working stability, lubricity and mold releasability even without including a borate or graphite, which is safe and can be produced easily and efficiently without causing environmental pollution. SOLUTION: This lubricant for plastic working contains an organic acid-intercalated layered double hydroxide where an organic acid anion is intercalated between the layers of an inorganic layered double hydroxide. The lubricant for plastic working is in a solid, powdery or suspension state and may contain an alkali soap and/or a metallic soap. The organic acid-intercalated layered double hydroxide in the lubricant for plastic working comprises monovalent or trivalent metallic ions of Li<SP>+</SP>, Al<SP>3+</SP>, Cr<SP>3+</SP>, Fe<SP>3+</SP>and/or Co<SP>3+</SP>and bivalent metallic ions of Mg<SP>2+</SP>, Zn<SP>2+</SP>, Ca<SP>2+</SP>, Cu<SP>2+</SP>, Zr<SP>2+</SP>, Co<SP>2+</SP>, Ni<SP>2+</SP>, Fe<SP>2+</SP>and/or Mn<SP>2+</SP>. COPYRIGHT: (C)2006,JPO&NCIPI |
