US3250642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Applying subbing layer onto olefin polymeric films by graft polymerization using ultra-violet radiation
Assignee: Ferrania SpA
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Filing: 1961-10-24
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Granted: 1966-05-10
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Expires: 1981-10-24
Abstract
No abstract record available.
Inventors
- 👤 Parasacco Giovanni
- 👤 Faraone Giovanni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:55
CPC Classifications
B; B32; B32B; B32B27/00; G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; G03C1/915; G03C1/93; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/18; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A METHOD OF APPLYING A SUBBING LAYER CONTAINING A HYDROPHILIC COLLOID TO AN OLEFIN POLYMERIC FILM COMPRISING APPLYING TO SAID OLEFIN POLYMERIC FILM A MIXTURE CONTAINING SAID HYDROPHILIC COLLOID, AT LEAST ONE HYDROPHILIC MONOMER SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, ACRYLAMIDE, METHACRYLIC ACID, METHACRYLAMIDE, MALEIC ACID, MALEIC AMIDE, ITACONIC ACID, ITACONIC AMIDE, CROTONIC ACID, AND CROTONIC AMIDE, AND AT LEAST ONE HYDROPHOBIC MONOMER SELECTED FROM THE GROUP CONSISTING OF GLYCIDYL METHACRYLATE AND A GLYCIDYL ETHER OF A HYDROXY ALKYL VINYL ETHER, AND GRAFT POLYMERIZING WITH THE AID OF ULTRA-VIOLET RADIATION, TO THEREBY (1) GRAFT SAID MONOMERS TO SAID OLEFIN POLYMERIC FILM AND ALSO (2) REACT SAID HYDROPHOBIC MONOMER WITH SAID HYDROPHILIC COLLOID.
Claim 2
Independent Claim
114 words
A METHOD OF APPLYING A SUBBING LAYER CONTAINING A HYDROPHILIC COLLOID TO AN OLEFIN POLYMERIC FILM COMPRISING APPLYING TO SAID OLEFIN POLYMERIC FILM A MIXTURE CONTAINING SAID HYDROPHILIC COLLOID, AT LEAST ONE HYDROPHILIC MONOMER SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, ACRYLAMIDE, METHACRYLIC ACID, METHACRYLAMIDE, MALEIC ACID, MALEIC AMIDE, ITACONIC ACID, ITACONIC AMIDE, CROTONIC ACID, AND CROTONIC AMIDE, AND AT LEAST ONE HYDROPHOBIC MONOMER SELECTED FROM THE GROUP CONSISTING OF GLYCIDYL METHACRYLATE AND A GLYCIDYL ETHER OF A HYDROXY ALKYL VINYL ETHER, AND GRAFT POLYMERIZING WITH THE AID OF ULTRA-VIOLET RADIATION, TO THEREBY (1) GRAFT SAID MONOMERS TO SAID OLEFIN POLYMERIC FILM AND ALSO (2) REACT SAID HYDROPHOBIC MONOMER WITH SAID HYDROPHILIC COLLOID.
References Cited (Backward Citations)
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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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |