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US4667004A
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Olefinic benzocyclobutene polymers
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 homopolymers of an olefinic benzocyclobutene monomer of the formula <IMAGE> where R1 is hydrogen or CH3 and R2 is -CH2-n where n is 0 to 6 are claimed. Such polymers can be easily crosslinked at temperatures above about 200 DEG C.
Inventors
- 👤 Pui K. Wong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:15
CPC Classifications
C; C08; C08F; C08F12/00; C08F12/02; C08F12/32; C08F210/00; C08F210/16
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
36 words
A solid crosslinkable homopolymer of an olefinic benzocyclobutene monomer of the formula ##STR7## wherein R 1 is hydrogen or CH 3 , R 2 is --CH 2 ) n , and n is 0 to 6.
Claim 2
Dependent Claim
36 words
A solid crosslinkable homopolymer of an olefinic benzocyclobutene monomer of the formula ##STR7## wherein R 1 is hydrogen or CH 3 , R 2 is --CH 2 ) n , and n is 0 to 6.
Claim 3
Dependent Claim
24 words
The polymer of claim 1 wherein said olefinic benzocylobutene monomer is selected from the group consisting of: 4-(3-butenyl)benzocyclobutene 3-(3-butenyl)benzocyclobutene 4-allylbenzocyclobutene 3-allylbenzycyclobutene 4-vinylbenzocyclobutene, and 3-vinylbenzocyclobutene.
Claim 4
Dependent Claim
16 words
The polymer of claim 1 wherein R 1 is hydrogen and n is 0 to 2.
Claim 5
Dependent Claim
12 words
The polymer of claim 1 wherein said olefinic benzocyclobutene monomer is 4-(3-butenyl)benzocyclobutene.
Claim 6
Dependent Claim
48 words
A process for preparing a solid reactive polymer comprises homopolymerizing an olefinic benzocyclobutene monomer of the formula: ##STR8## 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 7
Dependent Claim
48 words
A process for preparing a solid reactive polymer comprises homopolymerizing an olefinic benzocyclobutene monomer of the formula: ##STR8## 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 8
Dependent Claim
24 words
The process of claim 5 wherein said olefinic benzocyclobutene monomer is selected from the group consisting of: 4-(3-butenyl)benzocyclobutene 3-(3-butenyl)benzocyclobutene 4-allylbenzocylobutene 3-allylbenzycyclobutene 4-vinylbenzocyclobutene, and 3-vinylbenzocyclobutene.
Claim 9
Dependent Claim
12 words
The process of claim 5 wherein said olefinic benzocyclobutene monomer is 4-(3-butenyl)benzocyclobutene.
Claim 10
Dependent Claim
16 words
The process of claim 5 wherein said coordination catalyst is a titanium trichloride/trialkyl aluminum coordination catalyst.
Claim 11
Dependent Claim
16 words
The process of claim 8 wherein said coordination catalyst is a titanium trichloride/triethyl aluminum coordination catalyst.
Claim 12
Dependent Claim
28 words
The homopolymer of claim 1 having unreacted benzocyclobutene groups of the formula ##STR9## wherein R 2 is --CH 2 ) n , and n is 0 to 6.
Claim 13
Dependent Claim
24 words
A crosslinked polymer prepared by subjecting the homopolymer of claim 10 to a temperature effective for crosslinking the homopolymer through the unreacted benzocyclobutene groups.
Claim 14
Dependent Claim
17 words
The polymer of claim 11 wherein the temperature is from about 200° C. to about 250° C.
Claim 15
Dependent Claim
10 words
A homopolymer as prepared in the process of claim 5.
Claim 16
Dependent Claim
23 words
A crosslinked polymer prepared subjecting the homopolymer of claim 3 to a temperature effective for crosslinking the homopolymer through the unreacted benzocyclobutene groups.
Claim 17
Dependent Claim
17 words
The polymer of claim 14 wherein the temperature is from about 200° C. to about 250° C.
Claim 18
Dependent Claim
63 words
A process for preparing a solid crosslinkable homopolymer which process comprises contacting an olefinic benzocyclobutene monomer of the formula ##STR10## 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 under conditions suitable to prepare a polyolefin having an unreacted benzocyclobutene group.
Claim 19
Dependent Claim
63 words
A process for preparing a solid crosslinkable homopolymer which process comprises contacting an olefinic benzocyclobutene monomer of the formula ##STR10## 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 under conditions suitable to prepare a polyolefin having an unreacted benzocyclobutene group.
Claim 20
Dependent Claim
16 words
The process of claim 16 wherein R 1 is hydrogen and n is 0 to 2.
Claim 21
Dependent Claim
26 words
The process of claim 16 wherein the olefinic benzocyclobutene monomer is selected from the group consisting of 4-(3-butenyl)benzocyclo butene, 3-(3-butenyl)benzocyclobutene, 4-vinylbenzocyclobutene, 3-vinyl benzocyclobutene, 4-allylbenzocyclobutene and 3-allylbenzocyclobutene.
Claim 22
Dependent Claim
12 words
The process of claim 18 wherein the olefinic benzocyclobutene monomer is 4-(3-butenyl)benzocyclobutene.
Claim 23
Dependent Claim
17 words
The process of claim 16 wherein the polyolefin coordination catalyst is a titanium trichloride/trialkyl aluminum coordination catalyst.
Claim 24
Dependent Claim
17 words
The process of claim 20 wherein the polyolefin coordination catalyst is a titanium trichloride/triethyl aluminum coordination catalyst.
Claim 25
Dependent Claim
23 words
The process of claim 16 wherein the reaction is carried out at a temperature between about about 20° C. and about 100° C.
Claim 26
Dependent Claim
23 words
The process of claim 16 wherein the reaction is carried out at a temperature between about about 40° C. and about 80° C.
Claim 27
Dependent Claim
16 words
The process of claim 16 wherein the reaction is carried out in the presence of air.
Claim 28
Dependent Claim
23 words
The process of claim 5 wherein the reaction is carried out at a temperature between about about 20° C. and about 100° C.
Claim 29
Dependent Claim
23 words
The process of claim 5 wherein the reaction is carried out at a temperature between about about 40° C. and about 80° C.
Claim 30
Dependent Claim
16 words
The process of claim 5 wherein the reaction is carried out in the absence of air.
Claim 31
Dependent Claim
10 words
A copolymer as prepared in the process of claim 16.
Claim 32
Dependent Claim
23 words
A crosslinked polymer prepared subjecting the homopolymer of claim 27 to a temperature effective for crosslinking the homopolymer through the unreacted benzocyclobutene groups.
Claim 33
Dependent Claim
17 words
The polymer of claim 28 wherein the temperature is from about 200° C. to about 250° 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 |