US4171252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peroxy photoinitiator system for photopolymerizable compositions
Assignee: Armstrong World Industries Inc
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Filing: 1978-04-06
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Granted: 1979-10-16
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Expires: 1998-04-06
Abstract
Abstract A photoinitiating composition is disclosed which is useful for incorporating into an ethylenically-unsaturated photopolymerizable mass and which comprises a peroxygen-containing naphthalenic compound or an organic peroxygen-containing compound and naphthalene or substituted naphthalene.
Inventors
- 👤 Richard M. Fantazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:59
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A method for producing a photopolymer which method comprises incorporating into an ethylenically unsaturated photopolymerizable mass from about 0.1 to about 20 percent by weight of the photopolymerizable mass of a photoinitiating compound of the formula ##STR2## wherein R is selected from the group hydrogen, alkyloyl, alkyl or aryl and R" is an organic hydroperoxide of less than 15 carbon atoms per molecule selected from the group t-alkylhydroperoxide, secondary hydrocarbyl aralkyl hydroperoxide, and tertiary hydrocarbyl aralkyl hydroperoxide, and irradiating the resulting composition with ultraviolet light.
Claim 2
Independent Claim
85 words
A method for producing a photopolymer which method comprises incorporating into an ethylenically unsaturated photopolymerizable mass from about 0.1 to about 20 percent by weight of the photopolymerizable mass of a photoinitiating compound of the formula ##STR2## wherein R is selected from the group hydrogen, alkyloyl, alkyl or aryl and R" is an organic hydroperoxide of less than 15 carbon atoms per molecule selected from the group t-alkylhydroperoxide, secondary hydrocarbyl aralkyl hydroperoxide, and tertiary hydrocarbyl aralkyl hydroperoxide, and irradiating the resulting composition with ultraviolet light.
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) | 1982-10-15 | 1983-04-16 | 1983-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-15 | 1987-04-16 | 1987-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-15 | 1991-04-16 | 1991-10-16 | $7700.00 | Window Closed / Lapsed |