US3050390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerization of vinyl monomers by means of silver compounds as catalysts promoted by amphoteric metal oxides
Assignee: GAF Chemicals Corp
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Filing: 1958-10-06
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Granted: 1962-08-21
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Expires: 1978-10-06
Abstract
No abstract record available.
Inventors
- 👤 Levinos Steven
- 👤 Fritz W H Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:37
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/0285; C; C08; C08F; C08F2/00; C08F2/46; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
THE PROCESS FOR PHOTOPOLYMERIZING NORMALLY LIQUID TO NORMALLY SOLID ETHYLENICALLY UNSATURATED MONOMERS, WHICH COMPRISES IRRADIATING SUCH MONOMERS IN THE PRESENCE OF WATER WHILE UTILIZING A CATALYST CONSISTING ESSENTIALLY OF A MIXTURE OF A RADIATION SENSITIVE COMPOUND OF SILVER WHICH IS STABLE IN THE DARK AND A PROMOTER COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF ZINC, ZIRCONIUM, TITANIUM AND SILICON, AT LEAST A PORTION OF SAID LAST NAMED COMPOUNDS BEING SELECTED FROM THE GROUP CONSISTING OF ZINC OXIDE, ZIRCONIUM DIOXIDE TITANIUM DIOXIDE AND COLLODIAL SILICON DIOXIDE.
Claim 2
Dependent Claim
87 words
THE PROCESS FOR PHOTOPOLYMERIZING NORMALLY LIQUID TO NORMALLY SOLID ETHYLENICALLY UNSATURATED MONOMERS, WHICH COMPRISES IRRADIATING SUCH MONOMERS IN THE PRESENCE OF WATER WHILE UTILIZING A CATALYST CONSISTING ESSENTIALLY OF A MIXTURE OF A RADIATION SENSITIVE COMPOUND OF SILVER WHICH IS STABLE IN THE DARK AND A PROMOTER COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF ZINC, ZIRCONIUM, TITANIUM AND SILICON, AT LEAST A PORTION OF SAID LAST NAMED COMPOUNDS BEING SELECTED FROM THE GROUP CONSISTING OF ZINC OXIDE, ZIRCONIUM DIOXIDE TITANIUM DIOXIDE AND COLLODIAL SILICON DIOXIDE.
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) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |