Patent US4667005A successfully refreshed from Google Patents.
US4667005A
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Crystalline alphamonoolefin copolymers
Assignee: Shell USA Inc
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Filing: 1985-12-23
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Granted: 1987-05-19
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Expires: 2005-12-23
Abstract
Abstract Solid copolymers of C 2 -C 8 alphamonolefins and an olefinic benzocyclobutene monomer of the formula ##STR1## where R 1 is hydrogen or CH 3 and R 2 is --CH 2 ) n where n is 0 to 6 are claimed. Such copolymers can be easily crosslinked at temperatures above about 200° C., resulting in improved dimensional stability above the melting temperatures.
Inventors
- 👤 Pui K. Wong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:43
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/32; C08F210/00; C08F210/16
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
46 words
A solid crystalline crosslinkable copolymer of at least one C 2 -C 8 alphamonoolefin and an olefinic benzocyclobutene monomer of the formula ##STR9## wherein R 1 is hydrogen or CH 3 , R 2 is --(--CH 2 --) n --, and n is 0 to 6.
Claim 2
Dependent Claim
46 words
A solid crystalline crosslinkable copolymer of at least one C 2 -C 8 alphamonoolefin and an olefinic benzocyclobutene monomer of the formula ##STR9## wherein R 1 is hydrogen or CH 3 , R 2 is --(--CH 2 --) n --, and n is 0 to 6.
Claim 3
Dependent Claim
22 words
The copolymer of claim 1 wherein said alphaomonoolefin is selected from the group consisting of ethylene, propylene, butene-1, 4-methyl-1-pentent and mixtures thereof.
Claim 4
Dependent Claim
10 words
The copolymer of claim 2 wherein said alpahmonoolefin is propylene.
Claim 5
Dependent Claim
12 words
The copolymer of claim 2 wherein said alphamonoolefin includes ethylene and propylene.
Claim 6
Dependent Claim
16 words
The copolymer of claim 1 wherein R 1 is hydrogen and n is 0 to 2.
Claim 7
Dependent Claim
23 words
The copolymer of claim 1 wherein said olefinic benzocyclobutene monomer is selected from the group consisting of 4-(3-butenyl)benzocyclobutene, 3-(3-butenyl)benzocyclobutene, 4-vinylbenzocyclobutene, 3-vinylbenzocyclobutene, 4-allylbenzocyclobutene, 3-allylbenzocyclobutene.
Claim 8
Dependent Claim
12 words
The copolymer of claim 6 wherein said olefinic benzocyclobutene monomer is 4-(3-butenyl)benzocyclobutene.
Claim 9
Dependent Claim
22 words
The copolymer of claim 1 comprising 99.99 to 85 mole percent alphamonoolefin monomer and 0.01 to 15 mole percent olefinic benzocyclobutene monomer.
Claim 10
Dependent Claim
25 words
A solid copolymer having increased molecular weight or network structures prepared by heating the copolymer of claim 1 to a temperature above about 200° C.
Claim 11
Dependent Claim
54 words
A process for preparing a solid polymer comprises copolymerizing a C 2 -C 8 alphamonoolefin and an olefinic benzocyclobutene monomer of the formula: ##STR10## where R 1 is hydrogen or CH 3 and R 2 is --CH 2 -- n where n is 0 to 6, in the presence of a polyolefin coordination catalyst.
Claim 12
Dependent Claim
54 words
A process for preparing a solid polymer comprises copolymerizing a C 2 -C 8 alphamonoolefin and an olefinic benzocyclobutene monomer of the formula: ##STR10## where R 1 is hydrogen or CH 3 and R 2 is --CH 2 -- n where n is 0 to 6, in the presence of a polyolefin coordination catalyst.
Claim 13
Dependent Claim
22 words
The process of claim 10 wherein said alphaomonoolefin is selected from the group consisting of ethylene, propylene, butene-1, 4-methyl-1-pentene and mixtures thereof.
Claim 14
Dependent Claim
10 words
The process of claim 11 wherein said alpahmonoolefin is propylene.
Claim 15
Dependent Claim
12 words
The process of claim 11 wherein said alphamonoolefin includes ethylene and propylene.
Claim 16
Dependent Claim
16 words
The process of claim 10 wherein R 1 is hydrogen and n is 0 to 2.
Claim 17
Dependent Claim
23 words
The process of claim 10 wherein said olefinic benzocyclobutene monomer is selected from the group consisting of 4-(3-butenyl)benzocyclobutene, 3-(3-butenyl)benzocyclobutene, 4-vinylbenzocyclobutene, 3-vinylbenzocyclobutene, 4-allylbenzocyclobutene, 3-allylbenzocyclobutene.
Claim 18
Dependent Claim
12 words
The process of claim 15 wherein said olefinic benzocyclobutene monomer is 4-(3-butenyl)benzocyclobutene.
Claim 19
Dependent Claim
22 words
The copolymer of claim 1 comprising 99.99 to 85 mole percent alphamonoolefin monomer and 0.01 to 15 mole percent olefinic benzocyclobutene monomer.
Claim 20
Dependent Claim
16 words
The process of claim 10 wherein said coordination catalyst is a titanium trichloride/trialkyl aluminum coordination catalyst.
Claim 21
Dependent Claim
16 words
The process of claim 18 wherein said coordination catalyst is a titanium trichloride/triethyl aluminum coordination catalyst.
Claim 22
Dependent Claim
17 words
The process of claim 10 wherein said coordination catalyst is a titanium trichloride/diethyl aluminum chloride coordination catalyst.
Claim 23
Dependent Claim
28 words
The copolymer of claim 1 having unreacted benzocyclobutene groups of the formula ##STR11## wherein R 2 is --(--CH 2 --) n --, and n is 0 to 6.
Claim 24
Dependent Claim
24 words
A crosslinked polymer prepared by subjecting the copolymer of claim 21 to a temperature effective for crosslinking the copolymer through the unreacted benzocyclobutene groups.
Claim 25
Dependent Claim
18 words
The crosslinked polymer of claim 22 wherein the temperature is from about 200° C. to about 300° C.
Claim 26
Dependent Claim
10 words
A copolymer as prepared in the process of claim 10.
Claim 27
Dependent Claim
24 words
A crosslinked polymer prepared by subjecting the copolymer of claim 24 to a temperature effective for crosslinking the copolymer through the unreacted benzocyclobutene groups.
Claim 28
Dependent Claim
18 words
The crosslinked polymer of claim 25 wherein the temperature is from about 200° C. to about 300° C.
Claim 29
Dependent Claim
74 words
A process for preparing a solid crystalline crosslinkable copolymer which process comprises contacting at least one C 2 -C 8 alphamonoolefin and an olefinic benzocyclobutene monomer of the formula ##STR12## wherein R 1 is hydrogen or CH 3 , R 2 is --(--CH 2 --) n --, and n is 0 to 6, in the presence of a polyolefin coordination catalyst and under conditions suitable to prepare a polyolefin having an unreacted benzocyclobutene group.
Claim 30
Dependent Claim
74 words
A process for preparing a solid crystalline crosslinkable copolymer which process comprises contacting at least one C 2 -C 8 alphamonoolefin and an olefinic benzocyclobutene monomer of the formula ##STR12## wherein R 1 is hydrogen or CH 3 , R 2 is --(--CH 2 --) n --, and n is 0 to 6, in the presence of a polyolefin coordination catalyst and under conditions suitable to prepare a polyolefin having an unreacted benzocyclobutene group.
Claim 31
Dependent Claim
22 words
The process of claim 27 wherein the alphamonoolefin is selected from the group consisting of ethylene, propylene, butene-1, 4-methyl-1-pentene and mixtures thereof.
Claim 32
Dependent Claim
10 words
The process of claim 28 wherein the alphamonoolefin is propylene.
Claim 33
Dependent Claim
12 words
The process of claim 27 wherein the alphamonoolefin includes ethylene and propylene.
Claim 34
Dependent Claim
16 words
The process of claim 27 wherein R 1 is hydrogen and n is 0 to 2.
Claim 35
Dependent Claim
24 words
The process of claim 27 wherein the olefinic benzocyclobutene monomer is selected from the group consisting of 4-(3-butenyl)benzocyclobutene, 3-(3-butenyl)benzocyclobutene, 4-vinylbenzocyclobutene, 3-vinylbenzocyclobutene, 4-allylbenzocyclobutene and 3-allylbenzocyclobutene.
Claim 36
Dependent Claim
12 words
The process of claim 32 wherein the olefinic benzocyclobutene monomer is 4-(3-butenyl)benzocyclobutene.
Claim 37
Dependent Claim
17 words
The process of claim 27 wherein the polyolefin coordination catalyst is a titanium trichloride/trialkyl aluminum coordination catalyst.
Claim 38
Dependent Claim
17 words
The process of claim 34 wherein the polyolefin coordination catalyst is a titanium trichloride/triethyl aluminum coordination catalyst.
Claim 39
Dependent Claim
18 words
The process of claim 27 wherein the polyolefin coordination catalyst is a titanium trichloride/diethyl aluminum chloride coordination catalyst.
Claim 40
Dependent Claim
22 words
The process of claim 10 wherein the reaction is carried out at a temperature between about 20° C. and about 100° C.
Claim 41
Dependent Claim
22 words
The process of claim 10 wherein the reaction is carried out at a temperature between about 40° C. and about 80° C.
Claim 42
Dependent Claim
16 words
The process of claim 10 wherein the reaction is carried out in the absence of air.
Claim 43
Dependent Claim
22 words
The process of claim 27 wherein the reaction is carried out at a temperature between about 20° C. and about 100° C.
Claim 44
Dependent Claim
22 words
The process of claim 27 wherein the reaction is carried out at a temperature between about 40° C. and about 80° C.
Claim 45
Dependent Claim
16 words
The process of claim 27 wherein the reaction is carried out in the absence of air.
Claim 46
Dependent Claim
10 words
A copolymer as prepared in the process of claim 27.
Claim 47
Dependent Claim
24 words
A crosslinked polymer prepared by subjecting the copolymer of claim 43 to a temperature effective for crosslinking the copolymer through the unreacted benzocyclobutene groups.
Claim 48
Dependent Claim
18 words
The crosslinked polymer of claim 44 wherein the temperature is from about 200° C. to about 300° C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |