| 摘要 |
<p>Catalyst consists of Co composn. (e.g. at least one of bivalent cobalt salts, chelates, cobalt stearate, and trivalent cobalt chelates) and an organometallic composn. contg. at least one of organo-Li, -Zn or -Al having structures R1 - L1; R1 - Zn - R2; R1 - l - R2 (where R1, R2 are each a sat hydrocarb. and R3 = R1 or H). The product is modified with fumaric or maleic esters.</p> |
