| 摘要 |
NEW MATERIAL:A compound expressed by formula I (R represents >=4c alkyl or aralkyl; (m) and (n) are 1-4; X<+> represents cation). EXAMPLE:Lithium 3,3',5,5'-tetra-tert-butylborodisalicylate expressed by formula II. USE:Thermal stabilizers and plasticizers for plastic, rubber, etc., and charge- regulators for color toners. The compound is chemically and thermally stable and has excellent solvent solubility and high compatibility with plastics and rubbers. PREPARATION:For example, a substituted salicylic acid is added to an aqueous solution of boric acid and an amine to carry out reaction. |
