Patent US4689380A successfully refreshed from Google Patents.
US4689380A
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Cycloolefin copolymerization method, feed composition and product
Assignee: Metton America Inc
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Filing: 1986-04-11
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Granted: 1987-08-25
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Expires: 2006-04-11
Abstract
Abstract A cycloolefin copolymerization method, feed composition and product made from the feed which includes: a nonpolar cycloolefin, a polar cycloolefin and a catalyst. Preferably, the nonpolar cycloolefin is dicyclopentadiene, the catalyst comprises WCl 6 , the polar cycloolefin is an ester, and the composition also includes an activator.
Inventors
- 👤 Steven H. Nahm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:16
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
54 words
A substantially cross-linked copolymer product comprising polymerized units of dicyclopentadiene and a comonomer selected from the group consisting of 2-hydroxymethyl-5-norbornene adipate; methyl-5-norbornene-2-carboxylate; ethylene-bis-(5-norbornene-2-carboxylate); 2-hydroxymethyl-5-norbornene acetate ethylene-bis-(5-norbornene-2-carboxylate); and, said copolymer product having a glass transition temperature of at least 145° C., and a swell of less than about 245% in toluene after for 16 hours.
Claim 2
Dependent Claim
54 words
A substantially cross-linked copolymer product comprising polymerized units of dicyclopentadiene and a comonomer selected from the group consisting of 2-hydroxymethyl-5-norbornene adipate; methyl-5-norbornene-2-carboxylate; ethylene-bis-(5-norbornene-2-carboxylate); 2-hydroxymethyl-5-norbornene acetate ethylene-bis-(5-norbornene-2-carboxylate); and, said copolymer product having a glass transition temperature of at least 145° C., and a swell of less than about 245% in toluene after for 16 hours.
Claim 3
Independent Claim
76 words
A method of rate moderated dicyclopentadiene polymerization comprising: contacting dicyclopentadiene, cycloolefin comonomer, an aluminum containing activator and a tungsten containing catalyst, to form a polymerization mixture, said mixture being 50% by weight or less of said cycloolefin, said cycloolefin being 2-hydroxymethyl-5-norbornene adipate; methyl-5-norbornene-2-carboxylate; ethylene-bis-(5-norbornene-2-carboxylate); 2-hydroxymethyl-5-norbornene acetate or ethylene-bis-(2-methyl-5-norbornene-2-carboxylate) polymerizing said polymerization mixture, said cycloolefin being present in a concentration effective to increase the time from said contacting to the maximum temperature of the exotherm of polymerization.
Claim 4
Independent Claim
76 words
A method of rate moderated dicyclopentadiene polymerization comprising: contacting dicyclopentadiene, cycloolefin comonomer, an aluminum containing activator and a tungsten containing catalyst, to form a polymerization mixture, said mixture being 50% by weight or less of said cycloolefin, said cycloolefin being 2-hydroxymethyl-5-norbornene adipate; methyl-5-norbornene-2-carboxylate; ethylene-bis-(5-norbornene-2-carboxylate); 2-hydroxymethyl-5-norbornene acetate or ethylene-bis-(2-methyl-5-norbornene-2-carboxylate) polymerizing said polymerization mixture, said cycloolefin being present in a concentration effective to increase the time from said contacting to the maximum temperature of the exotherm of polymerization.
Claim 5
Dependent Claim
15 words
The composition of claim 1 wherein said glass transition temperature is at least 153° C.
Claim 6
Dependent Claim
15 words
The composition of claim 1 wherein said glass transition temperature is at least 160° C.
Claim 7
Dependent Claim
15 words
The composition of claim 1 wherein said glass transition temperature is at least 165° C.
Claim 8
Dependent Claim
15 words
The composition of claim 1 wherein said glass transition temperature is at least 175° C.
Claim 9
Dependent Claim
54 words
A substantially cross-linked copolymer product comprising polymerized units of dicyclopentadiene and a polar cycloolefin monomer, said cycloolefin being; 2-hydroxymethyl-5-norbornene adipate; methy-5-norbornene-2-carboxylate; 2-hydroxymethyl-5-norbornene acetate; ethylene-bis-(5-norbornene-2-carboxylate); or ethylene-bis-(2-methyl-5-norbornene-2-carboxylate) said copolymer product having a glass transition temperature of at least 145° C., and a swell of less than about 245% in toluene after reflex for 16 hours.
Claim 10
Dependent Claim
54 words
A substantially cross-linked copolymer product comprising polymerized units of dicyclopentadiene and a polar cycloolefin monomer, said cycloolefin being; 2-hydroxymethyl-5-norbornene adipate; methy-5-norbornene-2-carboxylate; 2-hydroxymethyl-5-norbornene acetate; ethylene-bis-(5-norbornene-2-carboxylate); or ethylene-bis-(2-methyl-5-norbornene-2-carboxylate) said copolymer product having a glass transition temperature of at least 145° C., and a swell of less than about 245% in toluene after reflex for 16 hours.
Claim 11
Dependent Claim
20 words
The composition of claim 7 wherein said copolymer product composition has a glass transition temperature of at least 153° C.
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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) | 1990-08-24 | 1991-02-23 | 1991-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-24 | 1995-02-23 | 1995-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-24 | 1999-02-23 | 1999-08-25 | $7700.00 | Window Closed / Lapsed |