US4205154A
Expired / Lapsed
US
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Triallyl carbonate polymers
Assignee: PPG Industries Inc
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Filing: 1978-11-01
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Granted: 1980-05-27
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Expires: 1998-11-01
Abstract
Abstract Disclosed are tris(allyl carbonate) monomers and polymers made therefrom.
Inventors
- 👤 Henry C. Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:06
CPC Classifications
C; C08; C08L; C08L69/00; C08F; C08F18/00; C08F18/24; C08G; C08G64/00; C08G64/02; C08G64/0291; G; G02; G02B; G02B1/00; G02B1/04; G02B1/041
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
90 words
A solid polymerizate of an allyl carbonate monomer having the formula: ##STR18## where the l n 's are integers from 0 to 5, the sum of the l n 's is at least 2, m is 4 or 5, n is greater than 2 and R is chosen from the group consisting of ##STR19## where R A is chosen from the group consisting of --H, --CH 3 , --CH 2 CH 3 , --CH 2 CH 2 CH 3 , and --CH 2 CH 2 CH 2 CH 3 .
Claim 2
Dependent Claim
90 words
A solid polymerizate of an allyl carbonate monomer having the formula: ##STR18## where the l n 's are integers from 0 to 5, the sum of the l n 's is at least 2, m is 4 or 5, n is greater than 2 and R is chosen from the group consisting of ##STR19## where R A is chosen from the group consisting of --H, --CH 3 , --CH 2 CH 3 , --CH 2 CH 2 CH 3 , and --CH 2 CH 2 CH 2 CH 3 .
Claim 3
Dependent Claim
92 words
A solid polymerizate of an allyl carbonate monomer having the formula: ##STR20## where the l n 's are integers from 0 to 5, the sum of the l n 's is at least 2, X is --H or --CH 3 , n is greater than 2 and R is chosen from the group consisting of ##STR21## where R A is chosen from the group consisting of --H, --CH 3 , --CH 2 CH 3 , --CH 2 CH 2 CH 3 , and --CH 2 --CH 2 --CH 2 --CH 3 .
Claim 4
Dependent Claim
92 words
A solid polymerizate of an allyl carbonate monomer having the formula: ##STR20## where the l n 's are integers from 0 to 5, the sum of the l n 's is at least 2, X is --H or --CH 3 , n is greater than 2 and R is chosen from the group consisting of ##STR21## where R A is chosen from the group consisting of --H, --CH 3 , --CH 2 CH 3 , --CH 2 CH 2 CH 3 , and --CH 2 --CH 2 --CH 2 --CH 3 .
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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) | 1983-05-27 | 1983-11-26 | 1984-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-27 | 1987-11-26 | 1988-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-27 | 1991-11-26 | 1992-05-27 | $7700.00 | Window Closed / Lapsed |