US5009924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process to permit improvement of functional properties of polyolefin articles by electron-beam initiated polymerization
Assignee: EG Technology Partners LP
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Filing: 1989-10-27
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Granted: 1991-04-23
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Expires: 2009-10-27
Abstract
Abstract A process is described for modifying the surface of polymers such as polyolefins and the like to improve the wetability by barrier and other coatings and to enhance interlayer adhesion by graft polymerization through initiation by electron-beam radiation, optionally with an added electron energy acceptor.
Inventors
- 👤 John E. Wyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:14
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/048; C08J7/12; C08J7/16; C08J7/18; C08J2323/00; C08J2323/02; C08J2483/00; C08J2483/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A process for modifying the surface of a polyolefin film that comprises, hydrolyzing an organofunctional silane; coating the surface of a polyolefin film with the hydrolyzed silane and drying the same; and electron-beam irradiating the coated surface to initiate the further polymerization of the silane-to-silane structure in the hydrolyzed silane layer and also to graft the same to the polyolefin surface.
Claim 2
Dependent Claim
61 words
A process for modifying the surface of a polyolefin film that comprises, hydrolyzing an organofunctional silane; coating the surface of a polyolefin film with the hydrolyzed silane and drying the same; and electron-beam irradiating the coated surface to initiate the further polymerization of the silane-to-silane structure in the hydrolyzed silane layer and also to graft the same to the polyolefin surface.
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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) | 1994-04-22 | 1994-10-22 | 1995-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-22 | 1998-10-22 | 1999-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-22 | 2002-10-22 | 2003-04-23 | $7700.00 | Window Closed / Lapsed |