α-olefins and olefin polymers and processes therefor
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08F-004/70
C08F-004/80
C08F-110/02
C08F-110/06
C08F-210/02
출원번호
US-0887273
(2001-06-22)
발명자
/ 주소
Brookhart, Maurice S.
Johnson, Lynda Kaye
Killian, Christopher Moore
McCord, Elizabeth Forrester
McLain, Stephan James
Arthur, Samuel David
출원인 / 주소
E. I. duPont de Nemours and Company
University of North Carolina at Chapel Hill
인용정보
피인용 횟수 :
14인용 특허 :
15
초록▼
Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Sinc
Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear α-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected α-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected α-diimine nickel complexes with ethylene.
대표청구항▼
1. A process for the production of a polyolefin having at least 50 branches per 1000 methylene groups and at least two branches of different lengths containing less than 6 carbon atoms each, comprising the step of polymerizing one or more monomers of the formula H2C?CH(CH2)eG, whereinG is hydrogen o
1. A process for the production of a polyolefin having at least 50 branches per 1000 methylene groups and at least two branches of different lengths containing less than 6 carbon atoms each, comprising the step of polymerizing one or more monomers of the formula H2C?CH(CH2)eG, whereinG is hydrogen or ?CO2R1, e is 0 or an integer of 1 to 20, R1 is hydrogen, hydrocarbyl or substituted hydrocarbyl, and in at least 50 mole percent of said monomers G is hydrogen, by contacting said one or more monomers with a transition metal containing coordination polymerization catalyst under polymerizing conditions such that in said polyolefin:(i) the number of branches per 1000 methylene groups is 90% or less than the number of theoretical branches per 1000 methylene groups, or (ii) the number of branches per 1000 methylene groups is 110% or more of theoretical branches per 1000 methylene groups; or (iii) when there should be no branches theoretically present, said polyolefin has 50 or more branches per 1000 methylene groups. 2. The process as recited in claim 1, wherein said one or more monomers are contacted with said transition metal containing coordination polymerization catalyst under polymerizing conditions such that in said polyolefin:(i) the number of branches per 1000 methylene groups is 80% or less than the number of theoretical branches per 1000 methylene groups, or (ii) the number of branches per 1000 methylene groups is 120% or more of theoretical branches per 1000 methylene groups; or (iii) when there should be no branches theoretically present, said polyolefin has 75 or more branches per 1000 methylene groups. 3. A process for the production of a polyolefin having at least 50 branches per 1000 methylene groups and at least two branches of different lengths containing less than 6 carbon atoms each, comprising the step of polymerizing one or more monomers of the formula H2C?CH(CH2)eG, whereinG is hydrogen or ?CO2R1, e is 0 or an integer of 1 to 20, R1 is hydrogen, hydrocarbyl or substituted hydrocarbyl, and in at least 50 mole percent of said monomers G is hydrogen, by contacting said one or more monomers with a transition metal containing coordination polymerization catalyst under polymerizing conditions such that in said polyolefin:(1) there are at least 50 branches of the formula ?(CH2)fG per 1000 methylene groups, wherein e≠f, and/or (2) for any single monomer of the formula H2C?CH(CH2)eG there are (a) less than 90% of the number of theoretical branches per 1000 methylene groups of the formula ?(CH2)fG and f=e, or (b) more than 110% of the theoretical branches per 1000 methylene groups of the formula ?(CH2)fG and f=e. 4. The process as recited claim 3 wherein said one or more monomers are contacted with a transition metal containing coordination polymerization catalyst under polymerizing conditions such that in said polyolefin:(1) there are at least 50 branches of the formula ?(CH2)fG per 1000 methylene groups, wherein e≠f, and/or (2) for any single monomer of the formula H2C?CH(CH2)eG there are (a) less than 80% of the number of theoretical branches per 1000 methylene groups of the formula ?(CH2)fG and f=e, or (b) more than 120% of the theoretical branches per 1000 methylene groups of the formula ?(CH2)fG and f=e. 5. The process as recited in claim 1, wherein said monomer is ethylene only.6. The process as recited in claim 2, wherein said monomer is ethylene only.7. The process as recited in claim 3, wherein said monomer is ethylene only.8. The process as recited in claim 4, wherein said monomer is ethylene only.9. The process as recited in claim 1, wherein said monomer is propylene only.10. The process as recited in claim 2, wherein said monomer is propylene only.11. The process as recited in claim 3, wherein said monomer is propylene only.12. The process as recited in claim 4, wherein said monomer is propylene only.
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이 특허에 인용된 특허 (15)
Effler ; Jr. Lawrence J. (Baton Rouge LA) Wright George D. (Baton Rouge LA) Berard Mark T. (Baton Rouge LA), Chlorinated and chlorosulfonated elastic substantially linear olefin polymers.
Lai Shih-Yaw (Sugar Land TX) Wilson John R. (Richwood TX) Knight George W. (Lake Jackson TX) Stevens James C. (Midland MI) Chum Pak-Wing S. (Lake Jackson TX), Elastic substantially linear olefin polymers.
Fraser William A. (Princeton NJ) Maraschin Norma J. (Somerset NJ) Karol Frederick J. (Belle Mead NJ) Makai Alexander J. (Charleston WV), High tear strength polymers.
McDaniel Max P. (Bartlesville OK) Klendworth Douglas (Bartlesville OK) Norwood Donald D. (Bartlesville OK) Hsieh Eric T. (Bartlesville OK) Boggs Elizabeth A. (Bartlesville OK), In situ comonomer generation in olefin polymerization.
McDaniel Max P. (Bartlesville OK) Benham Elizabeth A. (Bartlesville OK), Linear, very low density polyethylene polymerization process and products thereof.
Brown Katherine A. ; Stewart Edward G. ; Swanson Penelope J. ; Lamanna William M. ; Siedle Allen R., Polymerizable compositions comprising alpha-olefin hydrocarbon monomers and methods of use therefor.
Ukihashi ; Hiroshi ; Yamabe ; Masaaki ; Miyake ; Haruhisa, Terpolymers of tetrafluoroethylene, ethylene and perfluoroalkyl vinyl monomer and process for producing the same.
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