Use of trioxepans in the process to make high-solid acrylic,...

Details Use of trioxepans in the process to make high-solid acrylic,... Use of trioxepans in the process to make high-solid acrylic,...

C - Chemistry, Metallurgy

08

F

C08F 4/34 (2006.01) C07C 409/00 (2006.01)

Patent

CA 2419473

The invention relates to a polymerisation process wherein at least one initiator is selected from trioxepan compounds of formula I, with R1-3 being independently selected from substituted or unsubstituted hydrocarbyl groups. Preferably, R1 and R3 are selected from lower alkyl groups, such as methyl, ethyl, and isopropyl, while R2 is preferably selected from methyl, ethyl, isopropyl, isobutyl, amyl, isoamyl, cyclohexyl, CH3C(O)CH2-, C2H5OC(O)CH2-, HOC(CH3)2CH2-, and [...].

La présente invention concerne un procédé de polymérisation dans lequel on utilise un initiateur choisi parmi les composés trioxépan représentés par la formule générale (I). Dans cette formule, les R?1-3¿ étant choisis indépendamment les uns des autres dans les groupes des hydrocarbyles substitués ou non substitués. En outre, les R?1¿ et R?3¿ sont choisis dans les groupes alkyle inférieur tels que méthyle, éthyl, et isopropyle, alors que R?2¿ est choisi de préférence dans les groupes méthyle, éthyle, isopropyle, isobutyle, amyle, isoamyle, cyclohexyle, CH¿3?C(O)CH¿2?-, C¿2?H¿5?OC(O)CH¿2?-, HOC(CH¿3?)¿2?CH¿2?-, et [...].

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