| 摘要 |
The invention relates to a soft-magnetic powder comprising a core of a soft-magnetic material and a coating, the coating comprising an insulation treatment compound and an inhibitor, the inhibitor being:
(e) a carboxylic acid with the general formula (I);wherein R1 is a single bond or C1-C6-alkylene.R2 to R6 are each independently H, OH, —X—COOH, C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C7-cycloalkyl, C6-C12-aryl, COOR7, OR8, or two adjacent groups R2 to R6 together form a ring,X is a single bond or C1-C6-alkylene; R7, R8 are C1-C20-alkyl;or a salt of the carboxylic acid,
and/or
(f) a compound of the general formula (II);(R9—O—)(R10—O—)(R11—O—)PO (II)wherein R9 to R11 independently of each other indicate C1-C20-alkyl, C2-C20-alkenyl, C2-C6-alkynyl, C3-C7-cycloalkyl, C6-C12-aryl, unsubstituted or substituted with one or more groups selected from OH and NH2,orR9 to R11, are each independently a polydiol moiety having a molecular weight MW of 500 to 30000 g/mol which is optionally capped at the end by —C1-C20-alkyl and/or at the connection to O atom bonding to P by C1-C20-alkylene,orR10, R11 are each independently H.;The invention further relates to a process for producing the soft-magnetic powder and an electronic component comprising the soft-magnetic powder. |
