US4792595A
Expired / Lapsed
US
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Narrow MWD alpha-olefin copolymers
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1985-06-17
•
Granted: 1988-12-20
•
Expires: 2005-06-17
Abstract
Abstract The present invention relates to novel copolymers of alpha-olefins comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains.
Inventors
- 👤 Charles Cozewith
- 👤 Shiaw Ju
- 👤 Gary W. VerStrate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:30
CPC Classifications
C; C10; C10M; C10M143/00; C08; C08F; C08F210/00; C08F210/02; C08F210/16; C08F210/18; C08F297/00; C08F297/06; C08F297/08; B; B01; B01J; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00099; B01J2219/00159; B01J2219/00186; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/08; C10M2205/10; C10N; C10N2020/00; C10N2020/01
Claims Analysis
Total Claims: 85
Claim 1
Independent Claim
162 words
Copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer having an average ethylene composition and comprising intramolecularly heterogeneous copolymer chains wherein at least two portions of an individual intramolecularly heterogeneous chain, each portion comprising at least 5 weight percent of said chain, differ in composition from one another by at least 5 weight percent ethylene, wherein said copolymer has an intermolecular compositional dispersity such that 95 weight percent of said copolymer chains have a composition 15 weight percent or less different from said average ethylene composition, and wherein said copolymer has a weight average molecular weight of from about 2,000 to about 1,000,000, and a MWD characterized by at least one of a ratio of MHD w/MHD n of less than 2 and a ratio of MHD z/MHD w of less than 1.8, said copolymer having been produced from a polymerization reaction mixture which at initiation of polymerization comprises catalyst, ethylene and said at least one other alpha-olefin monomer.
Claim 2
Dependent Claim
162 words
Copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer having an average ethylene composition and comprising intramolecularly heterogeneous copolymer chains wherein at least two portions of an individual intramolecularly heterogeneous chain, each portion comprising at least 5 weight percent of said chain, differ in composition from one another by at least 5 weight percent ethylene, wherein said copolymer has an intermolecular compositional dispersity such that 95 weight percent of said copolymer chains have a composition 15 weight percent or less different from said average ethylene composition, and wherein said copolymer has a weight average molecular weight of from about 2,000 to about 1,000,000, and a MWD characterized by at least one of a ratio of MHD w/MHD n of less than 2 and a ratio of MHD z/MHD w of less than 1.8, said copolymer having been produced from a polymerization reaction mixture which at initiation of polymerization comprises catalyst, ethylene and said at least one other alpha-olefin monomer.
Claim 3
Dependent Claim
36 words
A copolymer according to claim 1, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 13% or less different from said average ethylene composition.
Claim 4
Dependent Claim
36 words
A copolymer according to claim 1, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 10% or less different from said average ethylene composition.
Claim 5
Dependent Claim
29 words
A copolymer according to claim 1, wherein said at least two portions of an individual chain differ in composition from one another by at least 10 weight percent ethylene.
Claim 6
Dependent Claim
29 words
A copolymer according to claim 1, wherein said at least two portions of an individual chain differ in composition from one another by at least 20 weight percent ethylene.
Claim 7
Dependent Claim
29 words
A copolymer according to claim 1, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 8
Dependent Claim
39 words
A copolymer according to claim 1, which has a MWD characterized by at least one of a ratio of MHD w/MHD n of less than about 1.6 and a ratio of MHD z/MHD w of less than about 1.5.
Claim 9
Dependent Claim
36 words
A copolymer according to claim 1, which has a MWD characterized by both a ratio of MHD w/MHD n of less than about 1.6 and a ratio of MHD z/MHD w of less than about 1.5.
Claim 10
Dependent Claim
39 words
A copolymer according to claim 1, which has a MWD characterized by at least one of a ratio of MHD w/MHD n of less than about 1.4 and a ratio of MHD z/MHD w of less than about 1.3.
Claim 11
Dependent Claim
37 words
A copolymer according to claim 1, which has a MWD characterized by both of a ratio of MHD w/MHD n of less than about 1.4 and a ratio of MHD z/MHD w of less than about 1.3.
Claim 12
Dependent Claim
62 words
A copolymer according to claim 7 or 8, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 13% or less different from said average ethylene composition, and wherein said at least two portions of an individual chain differ in composition from one another by at least 10 weight percent ethylene.
Claim 13
Dependent Claim
62 words
A copolymer according to claim 9 or 10, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 10% or less different from said average ethylene composition, and wherein said at least two portions of an individual chain differ in composition from one another by at least 20 weight percent ethylene.
Claim 14
Dependent Claim
29 words
A copolymer according to claim 11, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 15
Dependent Claim
29 words
A copolymer according to claim 12, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 16
Dependent Claim
19 words
A copolymer according to claim 1, having a total maximum ethylene content of about 90% on a weight basis.
Claim 17
Dependent Claim
19 words
A copolymer according to claim 1, having a total maximum ethylene content of about 85% on a weight basis.
Claim 18
Dependent Claim
38 words
A copolymer according to claim 15 or 16, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 13% or less different from said average ethylene composition.
Claim 19
Dependent Claim
38 words
A copolymer according to claim 15 or 16, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 10% or less different from said average ethylene composition.
Claim 20
Dependent Claim
31 words
A copolymer according to claim 15 or 16, wherein said at least two portions of an individual chain differ in composition from one another by at least 10 weight percent ethylene.
Claim 21
Dependent Claim
31 words
A copolymer according to claim 15 or 16, wherein said at least two portions of an individual chain differ in composition from one another by at least 20 weight percent ethylene.
Claim 22
Dependent Claim
31 words
A copolymer according to claim 15 or 16, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 23
Dependent Claim
41 words
A copolymer according to claim 15 or 16, which has a MWD characterized by at least one of a ratio of MHD w/MHD n of less than about 1.6 and a ratio of MHD z/MHD w of less than about 1.5.
Claim 24
Dependent Claim
38 words
A copolymer according to claim 15 or 16, which has a MWD characterized by both a ratio of MHD w/MHD n of less than about 1.6 and a ratio of MHD z/MHD w of less than about 1.5.
Claim 25
Dependent Claim
41 words
A copolymer according to claim 15 or 16, which has a MWD characterized by at least one of a ratio of MHD w/MHD n of less than about 1.4 and a ratio of MHD z/MHD w of less than about 1.3.
Claim 26
Dependent Claim
39 words
A copolymer according to claim 15 or 16, which has a MWD characterized by both of a ratio of MHD w/MHD n of less than about 1.4 and a ratio of MHD z/MHD w of less than about 1.3.
Claim 27
Dependent Claim
60 words
A copolymer according to claim 22, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 13% or less different from said average ethylene composition, and wherein said at least two portions of an individual chain differ in composition from one another by at least 10 weight percent ethylene.
Claim 28
Dependent Claim
60 words
A copolymer according to claim 24, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 10% or less different from said average ethylene composition, and wherein said at least two portions of an individual chain differ in composition from one another by at least 20 weight percent ethylene.
Claim 29
Dependent Claim
29 words
A copolymer according to claim 26, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 30
Dependent Claim
29 words
A copolymer according to claim 27, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 31
Dependent Claim
23 words
A copolymer according to claim 1, 15 or 16, having a total ethylene content of greater than about 25% on a weight basis.
Claim 32
Dependent Claim
12 words
A copolymer according to claim 1, 15 or 16, further comprising diene.
Claim 33
Dependent Claim
9 words
A copolymer according to claim 26, further comprising diene.
Claim 34
Dependent Claim
20 words
A copolymer according to claim 32, wherein the total ethylene content is about 30% to 75% on a weight basis.
Claim 35
Dependent Claim
14 words
A copolymer according to claim 11 which is comprised of ethylene, propylene and ENB.
Claim 36
Dependent Claim
9 words
A copolymer according to claim 1 which is cured.
Claim 37
Dependent Claim
9 words
A copolymer according to claim 11 which is cured.
Claim 38
Dependent Claim
18 words
A copolymer according to claim 1, which has a weight average molecular weight of about 10,000 to 1,000,000.
Claim 39
Dependent Claim
18 words
A copolymer according to claim 1, which has a weight average molecular weight of about 20,000 to 750,000.
Claim 40
Dependent Claim
148 words
Copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer having an average ethylene composition and comprising intramolecularly heterogeneous copolymer chains wherein at least two portions of an individual intramolecularly heterogeneous chain, each portion comprising at least 5 weight percent of said chain, differ in composition from one another by at least 5 weight percent ethylene, and wherein substantially all said portions contain ethylene, wherein said copolymer has an intermolecular compositional dispersity such that 95 weight percent of said copolymer chains have a composition 15 weight percent or less different from said average ethylene composition, and wherein said copolymer has a MWD characterized by at least one of a ratio of MHD w/MHD n of less than 2 and a ratio of MHD z/MHD w of less than 1.8, and wherein said copolymer has a weight average molecular weight of from about 2,000 to about 1,000,000.
Claim 41
Dependent Claim
148 words
Copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer having an average ethylene composition and comprising intramolecularly heterogeneous copolymer chains wherein at least two portions of an individual intramolecularly heterogeneous chain, each portion comprising at least 5 weight percent of said chain, differ in composition from one another by at least 5 weight percent ethylene, and wherein substantially all said portions contain ethylene, wherein said copolymer has an intermolecular compositional dispersity such that 95 weight percent of said copolymer chains have a composition 15 weight percent or less different from said average ethylene composition, and wherein said copolymer has a MWD characterized by at least one of a ratio of MHD w/MHD n of less than 2 and a ratio of MHD z/MHD w of less than 1.8, and wherein said copolymer has a weight average molecular weight of from about 2,000 to about 1,000,000.
Claim 42
Dependent Claim
36 words
A copolymer according to claim 39, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 13% or less different from said average ethylene composition.
Claim 43
Dependent Claim
36 words
A copolymer according to claim 39, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 10% or less different from said average ethylene composition.
Claim 44
Dependent Claim
29 words
A copolymer according to claim 39, wherein said at least two portions of an individual chain differ in composition from one another by at least 10 weight percent ethylene.
Claim 45
Dependent Claim
29 words
A copolymer according to claim 39, wherein said at least two portions of an individual chain differ in composition from one another by at least 20 weight percent ethylene.
Claim 46
Dependent Claim
29 words
A copolymer according to claim 39, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 47
Dependent Claim
39 words
A copolymer according to claim 39, which has a MWD characterized by at least one of a ratio of MHD w/MHD n of less than about 1.6 and a ratio of MHD z/MHD w of less than about 1.5.
Claim 48
Dependent Claim
36 words
A copolymer according to claim 39, which has a MWD characterized by both a ratio of MHD w/MHD n of less than about 1.6 and a ratio of MHD z/MHD w of less than about 1.5.
Claim 49
Dependent Claim
39 words
A copolymer according to claim 39, which has a MWD characterized by at least one of a ratio of MHD w/MHD n of less than about 1.4 and a ratio of MHD z/MHD w of less than about 1.3.
Claim 50
Dependent Claim
37 words
A copolymer according to claim 39, which has a MWD characterized by both of a ratio of MHD w/MHD n of less than about 1.4 and a ratio of MHD z/MHD w of less than about 1.3.
Claim 51
Dependent Claim
62 words
A copolymer according to claim 45 or 46, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 13% or less different from said average ethylene composition, and wherein said at least two portions of an individual chain differ in composition from one another by at least 10 weight percent ethylene.
Claim 52
Dependent Claim
62 words
A copolymer according to claim 47 or 48, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 10% or less different from said average ethylene composition, and wherein said at least two portions of an individual chain differ in composition from one another by at least 20 weight percent ethylene.
Claim 53
Dependent Claim
29 words
A copolymer according to claim 49, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 54
Dependent Claim
29 words
A copolymer according to claim 50, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 55
Dependent Claim
19 words
A copolymer according to claim 39, having a total maximum ethylene content of about 90% on a weight basis.
Claim 56
Dependent Claim
19 words
A copolymer according to claim 39, having a total maximum ethylene content of about 85% on a weight basis.
Claim 57
Dependent Claim
38 words
A copolymer according to claim 53 or 54, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 13% or less different from said average ethylene composition.
Claim 58
Dependent Claim
38 words
A copolymer according to claim 53 or 54, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 10% or less different from said average ethylene composition.
Claim 59
Dependent Claim
30 words
A copolymer according to claim 53 or 54, wherein said at least two portions of an individual chain differ in composition from one another by least 10 weight percent ethylene.
Claim 60
Dependent Claim
30 words
A copolymer according to claim 53 or 54, wherein said at least two portions of an individual chain differ in composition from one another by least 20 weight percent ethylene.
Claim 61
Dependent Claim
30 words
A copolymer according to claim 53 or 54, wherein said at least two portions of an individual chain differ in composition from one another by least 40 weight percent ethylene.
Claim 62
Dependent Claim
41 words
A copolymer according to claim 53 or 54, which has a MWD characterized by at least one of a ratio of MHD w/MHD n of less than about 1.6 and a ratio of MHD z/MHD w of less than about 1.5.
Claim 63
Dependent Claim
38 words
A copolymer according to claim 53 or 54, which has a MWD characterized by both a ratio of MHD w/MHD n of less than about 1.6 and a ratio of MHD z/MHD w of less than about 1.5.
Claim 64
Dependent Claim
41 words
A copolymer according to claim 53 or 54, which has a MWD characterized by at least one of a ratio of MHD w/MHD n of less than about 1.4 and a ratio of MHD z/MHD w of less than about 1.3.
Claim 65
Dependent Claim
38 words
A copolymer according to claim 53 or 54, which has a MWD characterized by both a ratio of MHD w/MHD n of less than about 1.4 and a ratio of MHD z/MHD w of less than about 1.3.
Claim 66
Dependent Claim
60 words
A copolymer according to claim 60, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 13% or less different from said average ethylene composition, and wherein said at least two portions of an individual chain differ in composition from one another by at least 10 weight percent ethylene.
Claim 67
Dependent Claim
60 words
A copolymer according to claim 62, wherein said intermolecular compositional dispersity of said copolymer is such that 95 weight percent of said copolymer chains have a composition 10% or less different from said average ethylene composition, and wherein said at least two portions of an individual chain differ in composition from one another by at least 20 weight percent ethylene.
Claim 68
Dependent Claim
28 words
A copolymer according to claim 64, wherein said at least two portions of an individual chain differ in composition from one another by least 40 weight percent ethylene.
Claim 69
Dependent Claim
28 words
A copolymer according to claim 65, wherein said at least two portions of an individual chain differ in composition from one another by least 40 weight percent ethylene.
Claim 70
Dependent Claim
23 words
A copolymer according to claim 39, 53 or 54, having a total ethylene content of greater than about 25% on a weight basis.
Claim 71
Dependent Claim
12 words
A copolymer according to claim 39, 53 or 54, further comprising diene.
Claim 72
Dependent Claim
9 words
A copolymer according to claim 64, further comprising diene.
Claim 73
Dependent Claim
20 words
A copolymer according to claim 70, wherein the total ethylene content is about 30% to 75% on a weight basis.
Claim 74
Dependent Claim
14 words
A copolymer according to claim 49 which is comprised of ethylene, propylene and ENB.
Claim 75
Dependent Claim
9 words
A copolymer according to claim 39 which is cured.
Claim 76
Dependent Claim
10 words
A copolymer according according to claim 39 which is cured.
Claim 77
Dependent Claim
18 words
A copolymer according to claim 39, which has a weight average molecular weight of about 15,000 to 1,000,000.
Claim 78
Dependent Claim
18 words
A copolymer according to claim 39, which has a weight average molecular weight of about 20,000 to 750,000.
Claim 79
Dependent Claim
75 words
A copolymer according to claims 39, 41, 44, 45, or 53, wherein said copolymer was formed by a polymerization conducted: (a) in at least one mix-free reactor, (b) with essentially one active catalyst species, (c) using at least one reaction mixture which is essentially transfer agent-free, and which comprises ethylene at the initiation of said polymerization, and (d) in such a manner and under conditions sufficient to initiate propagation of essentially all copolymer chains simultaneously.
Claim 80
Dependent Claim
39 words
A copolymer according to claim 77, wherein said catalyst comprises hydrocarbon-soluble vanadium compound and organo-aluminum compound which react to form essentially one active catalyst species, at least one of the vanadium compound and organo-aluminum compound containing a valence-bonded halogen.
Claim 81
Dependent Claim
102 words
A copolymer according to claim 77, wherein said catalyst comprises: (a) hydrocarbon-soluble vanadium compound selected from the group consisting of: ##STR2## where x=0-3 and R=hydrocarbon radical; VCl.sub.4 ; VO(AcAc).sub.2, where AcAc=acetyl acetonate VOCl.sub.x (AcAc).sub.3-x, where x=1 or 2 and AcAc=acetyl acetonate; and VCl.sub.3.nB, where n=2-3 and B=Lewis base capable of forming hydrocarbon-soluble complexes with VCl 3 ; and (b) organo-aluminum compound selected from the group consisting of: AlR 3 AlR 2 Cl, Al 2 R 3 Cl 3 , AlRCl 2 , AlR'RCl, Al(OR')R 2 , R 2 Al-OAlR 2 , and AlR 2 I, where R and R' are hydrocarbon radicals.
Claim 82
Dependent Claim
20 words
A copolymer according to claim 79, wherein said catalyst comprises VCl 4 and Al 2 R 3 Cl 3 .
Claim 83
Dependent Claim
18 words
A copolymer according to claim 78, wherein said polymerization reaction is continuous and is conducted in hexane solvent.
Claim 84
Dependent Claim
17 words
A copolymer according to claim 77, wherein said polymerization is conducted in at least one tubular reactor.
Claim 85
Dependent Claim
36 words
A copolymer according to claim 82, wherein said reaction mixture further comprises diene, and wherein at least one of said ethylene, other alpha-olefin monomer and diene are fed to said tubular reactor at multiple feed sites.
References Cited (Backward Citations)
US3853969A
Cited
US3378606A
Cited
US3380978A
Cited
US3522180A
Cited
US3551336A
Cited
US3697429A
Cited
US3879494A
Cited
US3790480A
Cited
US4078131A
Cited
US4205021A
Cited
US4192935A
Cited
US4259468A
Cited
US4363904A
Cited
US4429079A
Cited
US4405774A
Cited
EP0060609A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-12-20 | 1992-06-20 | 1992-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-20 | 1996-06-20 | 1996-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-20 | 2000-06-20 | 2000-12-20 | $7700.00 | Window Closed / Lapsed |