摘要 |
This invention relates to a transition metal catalyst compound represented by structure (A); wherein M is hafnium or zirconium; each X is, independently, selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halogens, dienes, amines, phosphines, ethers, or a combination thereof; each R1 and R3 are, independently, a C1 to C8 alkyl group; and each R2, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, and R14 are, independently, hydrogen, or a substituted or unsubstituted hydrocarbyl group having from 1 to 8 carbon atoms, provided however that at least three of the R10-R14 groups are not hydrogen, compositions thereof and methods of use thereof to prepare polymers. |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC.;CROWTHER, DONNA, J.;GANESH, RENUKA, N.;NARVAEZ, ANDREW, G., JR.;BRANT, PATRICK |
发明人 |
CROWTHER, DONNA, J.;GANESH, RENUKA, N.;NARVAEZ, ANDREW, G., JR.;BRANT, PATRICK |