US4654444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorine-containing diacylperoxides and use thereof
Assignee: Daikin Industries Ltd
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Filing: 1985-12-26
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Granted: 1987-03-31
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Expires: 2005-12-26
Abstract
Abstract A novel fluorine-containing diacylperoxide of the formula: [RO--CH.sub.2 CF.sub.2 CF.sub.2 O--.sub.n CH.sub.2 CF.sub.2 COO--.sub.2 (I) wherein R is a C 1 -C 10 hydrocarbon group or halogen-containing hydrocarbon group, and n is an integer of 0 to 3, which can initiate polymerization of an ethylenically unsaturated monomer at a relatively low temperature.
Inventors
- 👤 Masahiko Oka
- 👤 Shigeru Morita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:44
CPC Classifications
C; C07; C07C; C07C407/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
37 words
A fluorine-containing diacylperoxide of the formula: [RO--CH.sub.2 CF.sub.2 CF.sub.2 O--.sub.n CH.sub.2 CF.sub.2 COO--.sub.2 (I) wherein R is a C 1 -C 10 hydrocarbon group or halogen-containing hydrocarbon group, and n is an integer of 0 to 3.
Claim 2
Dependent Claim
37 words
A fluorine-containing diacylperoxide of the formula: [RO--CH.sub.2 CF.sub.2 CF.sub.2 O--.sub.n CH.sub.2 CF.sub.2 COO--.sub.2 (I) wherein R is a C 1 -C 10 hydrocarbon group or halogen-containing hydrocarbon group, and n is an integer of 0 to 3.
Claim 3
Dependent Claim
34 words
A fluorine-containing diacylperoxide according to claim 1, wherein R is a group selected from the group consisting of methyl, ethyl, isomeric propyl, isomeric butyl, pentyl allyl, phenyl, methylphenyl, triphenylmethyl, chloroethyl, chloropropyl, 2,2,3,3-tetrafluoropropyl and 2,2,2-trifluoroethyl.
References Cited (Backward Citations)
GB1132412A
Cited
US3436424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |