Patent US4959436A successfully refreshed from Google Patents.
US4959436A
Expired / Lapsed
US
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Narrow MWD alpha-olefin copolymers
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1988-06-27
•
Granted: 1990-09-25
•
Expires: 2008-06-27
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
2026-11-02 21:57
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: 86
Claim 1
Independent Claim
138 words
Copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer having an average ethylene composition and comprising intramolecularly hetergeneous copolymer chains wherein at least two portions of an individual intramolecularly hetergeneous 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 12,000,000, and a MWD characterized by at least one of a ratio of M w /M n of less than 2 and a ratio of M z /M w of less than 1.8.
Claim 2
Dependent Claim
138 words
Copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer having an average ethylene composition and comprising intramolecularly hetergeneous copolymer chains wherein at least two portions of an individual intramolecularly hetergeneous 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 12,000,000, and a MWD characterized by at least one of a ratio of M w /M n of less than 2 and a ratio of M z /M w of less than 1.8.
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
38 words
A copolymer according to claim 1, which has a MWD characterized by both a ratio of M w /M n of less than about 1.6 and a ratio of M z /M w of less than about 1.5.
Claim 9
Dependent Claim
41 words
A copolymer according to claim 1, which has a MWD characterized by at least one of a ratio of M w /M n of less than about 1.6 and a ratio of M z /M w of less than about 1.5.
Claim 10
Dependent Claim
60 words
A copolymer according to claim 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 11
Dependent Claim
14 words
A copolymer according to claim 9 which is comprised of ethylene, propylene and ENB.
Claim 12
Dependent Claim
9 words
A copolymer according to claim 9 which is cured.
Claim 13
Dependent Claim
29 words
A copolymer according to claim 9, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 14
Dependent Claim
41 words
A copolymer according to claim 1, which has a MWD characterized by at least one of a ratio of M w /M n of less than about 1.4 and a ratio of M z /M w of less than about 1.3.
Claim 15
Dependent Claim
60 words
A copolymer according to claim 13, 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 16
Dependent Claim
29 words
A copolymer according to claim 14, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 17
Dependent Claim
39 words
A copolymer according to claim 1 which has a MWD characterized by both of a ratio of M w /M n of less than about 1.4 and a ratio of M z /M w of less than about 1.3.
Claim 18
Dependent Claim
19 words
A copolymer according to claim 1, having a total maximum ethylene content of about 85% on a weight basis.
Claim 19
Dependent Claim
19 words
A copolymer according to claim 1, having a total maximum ethylene content of about 90% on a weight basis.
Claim 20
Dependent Claim
36 words
A copolymer according to claim 18, 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 21
Dependent Claim
36 words
A copolymer according to claim 18, 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 22
Dependent Claim
29 words
A copolymer according to claim 18, wherein said at least two portions of an individual chain differ in composition from one another by at least 10 weight percent ethylene.
Claim 23
Dependent Claim
29 words
A copolymer according to claim 18, wherein said at least two portions of an individual chain differ in composition from one another by at least 20 weight percent ethylene.
Claim 24
Dependent Claim
29 words
A copolymer according to claim 18, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 25
Dependent Claim
41 words
A copolymer according to claim 18, which has a MWD characterized by at least one of a ratio of M w /M n of less than about 1.6 and a ratio of M z /M w of less than about 1.5.
Claim 26
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 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 27
Dependent Claim
29 words
A copolymer according to claim 25, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 28
Dependent Claim
9 words
A copolymer according to claim 25, further comprising diene.
Claim 29
Dependent Claim
20 words
A copolymer according to claim 27, wherein the total ethylene content if about 30% to 75% on a weight basis.
Claim 30
Dependent Claim
38 words
A copolymer according to claim 18, which has a MWD characterized by both a ratio of M w /M n of less than about 1.6 and a ratio of M z /M w of less than about 1.5.
Claim 31
Dependent Claim
41 words
A copolymer according to claim 18, which has a MWD characterized by at least one of a ratio of M w /M n of less than about 1.4 and a ratio of M z /M w of less than about 1.3.
Claim 32
Dependent Claim
60 words
A copolymer according to claim 20, 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 33
Dependent Claim
29 words
A copolymer according to claim 31, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 34
Dependent Claim
39 words
A copolymer according to claim 18, which has a MWD characterized by both of a ratio of M w /M n of less than about 1.4. and a ratio of M z /M w of less than about 1.3.
Claim 35
Dependent Claim
20 words
A copolymer according to claim 1, having a total ethylene content of greater than about 25% on a weight basis.
Claim 36
Dependent Claim
9 words
A copolymer according to claim 1, further comprising diene.
Claim 37
Dependent Claim
9 words
A copolymer according to claim 1 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
150 words
Copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer having an average ethylene composition and comprising intramolecularly hetergeneous copolymer chains wherein at least two portions of an individual intramolecularly hetergeneous 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 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 M w /M n of less than 2 and a ratio of M z /M w of less than 1.8, and wherein said copolymer has a weight average molecular weight of from about 15,000 to about 12,000,000.
Claim 41
Dependent Claim
150 words
Copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer having an average ethylene composition and comprising intramolecularly hetergeneous copolymer chains wherein at least two portions of an individual intramolecularly hetergeneous 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 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 M w /M n of less than 2 and a ratio of M z /M w of less than 1.8, and wherein said copolymer has a weight average molecular weight of from about 15,000 to about 12,000,000.
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 29, 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 29, 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 40, 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
41 words
A copolymer according to claim 39, which has a MWD characterized by at least one of a ratio of M w /M n of less than about 1.6 and a ratio of M z /M w of less than about 1.5.
Claim 48
Dependent Claim
60 words
A copolymer according to claim 45, 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 49
Dependent Claim
29 words
A copolymer according to claim 46, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 50
Dependent Claim
14 words
A copolymer according to claim 46, which is comprised of ethylene, propylene and ENB.
Claim 51
Dependent Claim
9 words
A copolymer according to claim 46 which is cured.
Claim 52
Dependent Claim
37 words
A copolymer according to claim 39, which has a MWD characterized by both a ratio of M w /M n of less than about 1.6 and a ratio of M z /M w of less than 1.5.
Claim 53
Dependent Claim
41 words
A copolymer according to claim 39, which has a MWD characterized by at least one of a ratio of M w /M n of less than about 1.4 and a ratio of M z /M w of less than about 1.3.
Claim 54
Dependent Claim
60 words
A copolymer according to claim 51, 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 55
Dependent Claim
29 words
A copolymer according to claim 52, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 56
Dependent Claim
39 words
A copolymer according to claim 39, which has a MWD characterized by both of a ratio of M w /M n of less than about 1.4 and a ratio of M z /M w of less than about 1.3.
Claim 57
Dependent Claim
19 words
A copolymer according to claim 39, having a total maximum ethylene content of about 90% on a weight basis.
Claim 58
Dependent Claim
36 words
A copolymer according to claim 55, 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 59
Dependent Claim
36 words
A copolymer according to claim 55, 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 60
Dependent Claim
28 words
A copolymer according to claim 55, wherein said at least two portions of an individual chain differ in composition from one another by least 10 weight percent ethylene.
Claim 61
Dependent Claim
28 words
A copolymer according to claim 55, wherein said at least two portions of an individual chain differ in composition from one another by least 20 weight percent ethylene.
Claim 62
Dependent Claim
28 words
A copolymer according to claim 55, wherein said at least two portions of an individual chain differ in composition from one another by least 40 weight percent ethylene.
Claim 63
Dependent Claim
41 words
A copolymer according to claim 55, which has a MWD characterized by at least one of a ratio of M w /M n of less than about 1.6 and a ratio of M z /M w of less than about 1.5.
Claim 64
Dependent Claim
60 words
A copolymer according to claim 61, 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 65
Dependent Claim
28 words
A copolymer according to claim 62, wherein said at least two portions of an individual chain differ in composition from one another by least 40 weight percent ethylene.
Claim 66
Dependent Claim
9 words
A copolymer according to claim 62, further comprising diene.
Claim 67
Dependent Claim
20 words
A copolymer according to claim 64, wherein the total ethylene content is about 30% to 75% on a weight basis.
Claim 68
Dependent Claim
38 words
A copolymer according to claim 55, which has a MWD characterized by both a ratio of M w /M n of less than about 1.6 and a ratio of M z /M w of less than about 1.5.
Claim 69
Dependent Claim
41 words
A copolymer according to claim 55, which has a MWD characterized by at least one of a ratio of M w /M n of less than about 1.4 and a ratio of M z /M w of less than about 1.3.
Claim 70
Dependent Claim
60 words
A copolymer according to claim 67, 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 71
Dependent Claim
29 words
A copolymer according to claim 68, wherein said at least two portions of an individual chain differ in composition from one another by at least 40 weight percent ethylene.
Claim 72
Dependent Claim
38 words
A copolymer according to claim 55, which has a MWD characterized by both a ratio of M w /M n of less than about 1.4 and a ratio of M z /M w of less than about 1.3.
Claim 73
Dependent Claim
19 words
A copolymer according to claim 39, having a total maximum ethylene content of about 85% on a weight basis.
Claim 74
Dependent Claim
20 words
A copolymer according to claim 39, having a total ethylene content of greater than about 25% on a weight basis.
Claim 75
Dependent Claim
9 words
A copolymer according to claim 39, further comprising diene.
Claim 76
Dependent Claim
9 words
A copolymer 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 12,000,000.
Claim 78
Dependent Claim
18 words
A copolymer according to claim 39, which has a weight average molecular weight of about 15,000 to 12,000,000.
Claim 79
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 80
Dependent Claim
70 words
A copolymer according to claim 39, 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 81
Dependent Claim
39 words
A copolymer according to claim 78, 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 82
Dependent Claim
18 words
A copolymer according to claim 79, wherein said polymerization reaction is continuous and is conducted in hexane solvent.
Claim 83
Dependent Claim
112 words
A copolymer according to claim 79, wherein said catalyst comprises: (a) hydrocarbon-soluble vanadium compound selected from the group consisting of: ##STR3## where x=0-3 and R=hydrocarbon radical; VCl 4 ; VO(AcAc) 2 , where AcAc=acetyl acetonate; VOCl x (AcAc) 3-x , where x=1 or 2 and AcAc=acetyl acetonate; and VCl 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 1 are hydrocarbon radicals.
Claim 84
Dependent Claim
20 words
A copolymer according to claim 81, wherein said catalyst comprises VCl 4 and Al 2 R 3 Cl 3 .
Claim 85
Dependent Claim
17 words
A copolymer according to claim 78, wherein said polymerization is conducted in at least one tubular reactor.
Claim 86
Dependent Claim
36 words
A copolymer according to claim 83, 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.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-24 | 1994-03-26 | 1994-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-24 | 1998-03-26 | 1998-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-24 | 2002-03-26 | 2002-09-25 | $7700.00 | Window Closed / Lapsed |