Patent US4383341A successfully refreshed from Google Patents.
Patent US3372965A successfully refreshed from Google Patents.
Patent US4119657A successfully refreshed from Google Patents.
US4119657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel peroxycarbonate
Assignee: Nihon Yushi Co Ltd
•
Filing: 1977-05-20
•
Granted: 1978-10-10
•
Expires: 1997-05-20
Abstract
Abstract Peroxycarbonates having the following formula are copolymerizable with non-conjugated ethylenically unsaturated monomers and have good storage stability, ##STR1## in which R 1 represents a hydrogen atom or a lower alkyl group having one to four carbon atoms, R 2 and R 3 represent lower alkyl groups having one to four carbon atoms, and R 4 represents an alkyl group having one to 12 carbon atoms or a cyclo alkyl group having three to 12 carbon atoms.
Inventors
- 👤 Takeshi Komai
- 👤 Kazuo Matsuyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:32
CPC Classifications
C; C07; C07C; C07C409/00; C07C409/38; C08; C08F; C08F18/00; C08F18/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
43 words
A compound having the formula ##STR6## wherein R 1 is hydrogen or alkyl having 1 to 4 carbon atoms, R 2 and R 3 are alkyls having 1 to 4 carbon atoms, and R 4 is alkyl having 1 to 12 carbon atoms.
Claim 2
Dependent Claim
43 words
A compound having the formula ##STR6## wherein R 1 is hydrogen or alkyl having 1 to 4 carbon atoms, R 2 and R 3 are alkyls having 1 to 4 carbon atoms, and R 4 is alkyl having 1 to 12 carbon atoms.
Claim 3
Dependent Claim
10 words
A compound as claimed in claim 1, t-butylperoxy allyl carbonate.
Claim 4
Dependent Claim
10 words
A compound as claimed in claim 1, t-hexylperoxy allyl carbonate.
Claim 5
Dependent Claim
10 words
A compound as claimed in claim 1, 1,1,3,3-tetramethylbutylperoxy allyl carbonate.
Claim 6
Dependent Claim
10 words
A compound as claimed in claim 1, t-butylperoxy methallyl carbonate.
Claim 7
Dependent Claim
10 words
A compound as claimed in claim 1, t-hexylperoxy methallyl carbonate.
Claim 8
Dependent Claim
10 words
A compound as claimed in claim 1, 1,1,3,3-tetramethylbutylperoxy methallyl carbonate.
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) | 1981-10-09 | 1982-04-10 | 1982-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-09 | 1986-04-10 | 1986-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-09 | 1990-04-10 | 1990-10-10 | $7700.00 | Window Closed / Lapsed |