THREE AND FOUR ATOM BRIDGED DICARBONATE COMPOUNDS AS INTERNAL DONORS IN CATALYSTS FOR POLYPROPYLENE MANUFACTURE
申请人:Coalter, III Joseph N.
公开号:US20110130529A1
公开(公告)日:2011-06-02
A solid, hydrocarbon-insoluble, catalyst component useful in polymerizing olefins, said catalyst component containing magnesium, titanium, and halogen, and further containing an internal electron donor having a structure:
[R
1
—O—C(O)—O—]
x
R
2
wherein R
1
is independently at each occurrence, an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms; x is 2-4; and R
2
is an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms, provided that there are from 3 to 4 atoms in the shortest chain connecting a first R
1
—O—C(O)—O— group and a second R
1
—O—C(O)—O— group.
一种固体、烃不溶性的催化剂组分,用于聚合烯烃,该催化剂组分包含镁、钛和卤素,并进一步包含具有结构的内部电子给体:[R1—O—C(O)—O—]xR2,其中R1在每次出现时独立地是一个含有1至20个碳原子的脂肪族或芳香族烃或取代烃基; x为2-4; R2是一个含有1至20个碳原子的脂肪族或芳香族烃或取代烃基,前提是在连接第一个R1—O—C(O)—O—基团和第二个R1—O—C(O)—O—基团的最短链中有3至4个原子。