| 摘要 |
PROBLEM TO BE SOLVED: To obtain a new compound excellent in oil-solidifying ability, and useful as a cosmetic raw material or the like. SOLUTION: This new compound is a compound of the formula (R1 is an alkyl having such a chain length as to be 22-100 in the most frequent number of carbon atoms; and R2 to R5 are each a 1-10C hydrocarbon). The compound of the formula is obtained by the following steps: ethylene is polymerized pref. at 20-80 deg.C normally for about 0.1-24 h using an initiator comprising an organolithium compound such as n-butyllithium to form a polyethylene 22-100 in the most frequent number of carbon atoms, which is then reacted with a cyclic polysiloxane such as decamethylcyclopentasiloxane or a silane having two eliminable groups to produce a modified polyethylene with its molecular end being a silicon atom having a silanol group, silanolate group or the above- mentioned eliminable group, and subsequently two molecules of the modified polyethylene are coupled with each other in the presence of a catalyst such as activated clay pref. at 100-150 deg.C for about 1-72 h.
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