| 摘要 |
The prepared lamellar crystallites are used as additives in metal working lubricants comprising colloidal dispersions in water. Lamellar crystallites are used as extreme pressure additives in aqueous lubricants for the deformation or transformation of metals. The crystallites are of length (L) 0.1-100 microns m, width (I) 0.5-30 microns m and thickness (e) 5-200 microns m, and comprise a stack of organic phases (O) and aqueous solutions (A) according to O/(A/O)n with n greater than 0. The stack has a thickness of 5-200 microns m. The organic phase comprises: (i) a 5C minimum carboxylic acid (optionally unsaturated), or an acid phosphate ester (RO)x-P(=O)(OH)x<1> with R = hydrocarbyl, possibly polyalkoxylated and x and x<1> = 1 or 2, where x + x<1> = 3 and the acid is optionally neutralized by an organic or mineral base, or a metal as a multivalent ion; or (ii) a polyoxyalkylene block polymer having a cloud point. Independent claims are also included for the products and their preparation. |
