US4699963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cycloolefin polymerization
Assignee: Metton America Inc
•
Filing: 1985-12-06
•
Granted: 1987-10-13
•
Expires: 2005-12-06
Abstract
Abstract A polymerization catalyst composition including ##STR1## wherein R is an alkyl group having 3 to 20 carbon atoms; m is 4 or 6 and n is 0 or 1. Preferably the composition also includes, ##STR2## wherein R 1 and R 2 are independently hydrogen, an alkyl or alkoxy group of from 1 to 5 carbons. Preferably r is 1; m is 4 and R is nonyl and the molar ratio of WCl m O n to ##STR3## is from about 1:1 to about 1:3.
Inventors
- 👤 Daniel W. Klosiewicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:09
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
105 words
A method of polymerization comprising: (a) providing a catalyst solution, said catalyst solution comprising cycloolefin, WCl m O n and ##STR22## wherein m is 4 or 6; n is 0 when m is 6; and n is 1 when m is 4; and R 1 and R 2 are independently hydrogen, an alkyl of from 1 to 5 carbons or alkoxy of from 1 to 5 carbons; (b) providing an activator; said activator being effective to activate said catalyst solution to polymerize said cycloolefin; (c) mixing said catalyst solution and said activator to form a polymerization solution, said polymerization solution polymerizing to form a polymer.
Claim 2
Independent Claim
105 words
A method of polymerization comprising: (a) providing a catalyst solution, said catalyst solution comprising cycloolefin, WCl m O n and ##STR22## wherein m is 4 or 6; n is 0 when m is 6; and n is 1 when m is 4; and R 1 and R 2 are independently hydrogen, an alkyl of from 1 to 5 carbons or alkoxy of from 1 to 5 carbons; (b) providing an activator; said activator being effective to activate said catalyst solution to polymerize said cycloolefin; (c) mixing said catalyst solution and said activator to form a polymerization solution, said polymerization solution polymerizing to form a polymer.
Claim 3
Dependent Claim
10 words
The method of claim 1 wherein said cycloolefin is dicyclopentadiene.
Claim 4
Dependent Claim
35 words
The method of claim 1 wherein said polymerization solution further comprises ##STR23## wherein R is an alkyl group having 3 to 20 carbon atoms; m is 4 or 6 and n is 0 or 1.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein the molar ratio of WCl m O n to ##STR24## is from about 1:1 to about 1:5.
Claim 6
Dependent Claim
24 words
The method of claim 1 wherein said cycloolefin is dicyclopentadiene, said dicyclopentadiene being at least 98 percent pure prior to addition to said composition.
Claim 7
Independent Claim
76 words
A method of polymerization comprising: (a) providing a catalyst solution, said catalyst solution comprising cycloolefin, 2,4 pentanedione and WCl m O n wherein m is 6 when n is 0 and m is 4 when n is 1; (b) providing an activator; said activator being effective to activate said catalyst solution to polymerize said cycloolefin; (c) mixing said catalyst solution and said activator to form a polymerization solution, said polymerization solution polymerizing to form a polymer.
Claim 8
Independent Claim
76 words
A method of polymerization comprising: (a) providing a catalyst solution, said catalyst solution comprising cycloolefin, 2,4 pentanedione and WCl m O n wherein m is 6 when n is 0 and m is 4 when n is 1; (b) providing an activator; said activator being effective to activate said catalyst solution to polymerize said cycloolefin; (c) mixing said catalyst solution and said activator to form a polymerization solution, said polymerization solution polymerizing to form a polymer.
Claim 9
Dependent Claim
10 words
The method of claim 6 wherein said cycloolefin is dicyclopentadiene.
Claim 10
Dependent Claim
11 words
The method of claim 6 wherein said polymer is substantially cross-linked.
References Cited (Backward Citations)
US3084147A
Cited
US3446785A
Cited
US3557072A
Cited
US3684787A
Cited
US3873644A
Cited
US3974092A
Cited
US3974094A
Cited
US3798175A
Cited
US3627739A
Cited
US4002815A
Cited
US3935179A
Cited
US4020254A
Cited
US4250063A
Cited
US4038471A
Cited
JPS5392000A
Cited
JPS53111399A
Cited
US4136247A
Cited
US4178424A
Cited
US4136249A
Cited
US4136248A
Cited
US4380617A
Cited
US4469809A
Cited
US4400340A
Cited
US4436858A
Cited
US4485208A
Cited
US4426502A
Cited
US4418179A
Cited
US4481344A
Cited
US4458037A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-12 | 1991-04-13 | 1991-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-12 | 1995-04-13 | 1995-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-12 | 1999-04-13 | 1999-10-13 | $7700.00 | Window Closed / Lapsed |