[미국특허]
Dual catalyst systems for producing polymers with a broad molecular weight distribution and a uniform short chain branch distribution
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08F-004/653
C08F-004/6592
C08F-210/16
C08F-004/659
출원번호
US-0397805
(2017-01-04)
등록번호
US-10017592
(2018-07-10)
발명자
/ 주소
Yang, Qing
Greco, Jeff F.
McDaniel, Max P.
Yu, Youlu
Glass, Gary L.
Crain, Tony R.
출원인 / 주소
Chevron Phillips Chemical Company LP
대리인 / 주소
Merchant & Gould P.C.
인용정보
피인용 횟수 :
0인용 특허 :
68
초록▼
Disclosed herein are ethylene-based polymers having a melt index less than 50 g/10 min, a ratio of Mw/Mn from 4 to 20, a density from 0.90 to 0.945 g/cm3, and a substantially constant short chain branch distribution. These polymers can be produced using a dual catalyst system containing a boron brid
Disclosed herein are ethylene-based polymers having a melt index less than 50 g/10 min, a ratio of Mw/Mn from 4 to 20, a density from 0.90 to 0.945 g/cm3, and a substantially constant short chain branch distribution. These polymers can be produced using a dual catalyst system containing a boron bridged metallocene compound with a cyclopentadienyl group and an indenyl group, and a single atom bridged metallocene compound with a fluorenyl group.
대표청구항▼
1. A catalyst composition comprising: catalyst component I comprising a boron bridged metallocene compound with a substituted or unsubstituted cyclopentadienyl group and a substituted or unsubstituted indenyl group, wherein at least one of the cyclopentadienyl group and the indenyl group has an alke
1. A catalyst composition comprising: catalyst component I comprising a boron bridged metallocene compound with a substituted or unsubstituted cyclopentadienyl group and a substituted or unsubstituted indenyl group, wherein at least one of the cyclopentadienyl group and the indenyl group has an alkenyl substituent;catalyst component II comprising a single atom bridged metallocene compound with a substituted or unsubstituted fluorenyl group;an activator; andan optional co-catalyst. 2. The composition of claim 1, wherein the indenyl group has a C3 to C8 terminal alkenyl substituent. 3. The composition of claim 1, wherein catalyst component II comprises a single atom bridged metallocene compound with a substituted or unsubstituted cyclopentadienyl group and a substituted or unsubstituted fluorenyl group. 4. The composition of claim 3, wherein catalyst component II contains a phenyl substituent on the single atom bridge. 5. The composition of claim 3, wherein catalyst component II contains an alkenyl substituent on the single atom bridge or on the cyclopentadienyl group. 6. The composition of claim 3, wherein catalyst component II contains a C or Si bridging atom. 7. The composition of claim 1, wherein the activator comprises an aluminoxane compound, an organoboron or organoborate compound, an ionizing ionic compound, or any combination thereof. 8. The composition of claim 7, wherein the catalyst composition comprises a co-catalyst. 9. The composition of claim 1, wherein the activator comprises an activator-support comprising a fluorided solid oxide, a sulfated solid oxide, or any combination thereof. 10. The composition of claim 9, wherein the catalyst composition comprises an organoaluminum co-catalyst. 11. The composition of claim 10, wherein the activator-support comprises fluorided alumina, sulfated alumina, fluorided silica-alumina, sulfated silica-alumina, fluorided silica-coated alumina, sulfated silica-coated alumina, or any combination thereof. 12. The composition of claim 1, wherein a weight ratio of catalyst component I to catalyst component II is in a range of from about 1:10 to about 10:1. 13. The composition of claim 1, wherein the catalyst composition is capable of producing an olefin polymer having a substantially constant short chain branch distribution. 14. A catalyst composition comprising catalyst component I, catalyst component II, an activator, and an optional co-catalyst, wherein: catalyst component I comprises a boron bridged metallocene compound having formula (A): and catalyst component II comprises a single atom bridged metallocene compound having formula (B): wherein: M and M3 independently are Ti, Zr, or Hf;each X independently is a halide or a C1 to C18 hydrocarbyl group;Cp is a cyclopentadienyl group, optionally substituted;Ind is an indenyl group, optionally substituted;at least one of Cp and Ind has an alkenyl substituent;CpC is a cyclopentadienyl group, optionally substituted;RX and RY independently are a C1 to C8 hydrocarbyl group;E3 is C or Si;each R independently is a C1 to C12 hydrocarbyl group; andeach R3 independently is a C1 to C12 hydrocarbyl group. 15. The composition of claim 14, wherein the activator comprises an aluminoxane compound, an organoboron or organoborate compound, an ionizing ionic compound, or any combination thereof. 16. The composition of claim 14, wherein the catalyst composition comprises a co-catalyst, and wherein the activator comprises an activator-support, the activator-support comprising a solid oxide treated with an electron-withdrawing anion. 17. A catalyst composition comprising catalyst component I, catalyst component II, an activator, and an optional co-catalyst, wherein: catalyst component I comprises a boron bridged metallocene compound having formula (A): and catalyst component II comprises a single atom bridged metallocene compound having formula (B): wherein: M and M3 independently are Ti, Zr, or Hf;each X is Cl;Cp is a cyclopentadienyl group with a C3 to C8 terminal alkenyl substituent;Ind is an indenyl group, optionally substituted;CpC is a cyclopentadienyl group, optionally substituted;RX and RY independently are H or a C1 to C8 alkyl group;E3 is C or Si;each R independently is H or a C1 to C6 alkyl group; andeach R3 independently is a phenyl group, a C1 to C8 alkyl group, or a C3 to C8 alkenyl group. 18. The composition of claim 17, wherein the catalyst composition comprises an organoaluminum co-catalyst. 19. The composition of claim 17, wherein the activator comprises an activator-support comprising a fluorided solid oxide, a sulfated solid oxide, or any combination thereof. 20. The composition of claim 17, wherein the activator comprises an aluminoxane compound, an organoboron or organoborate compound, an ionizing ionic compound, or any combination thereof.
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상세보기
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