US4452827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for surface modification of synthetic artificial and natural polymers and polymer compositions using metals, non-metals and gases
Assignee: INSTITUTE ZA YADRENI IZSLEDVANIYA I YADRENA ENERGETIKA
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Filing: 1983-09-30
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Granted: 1984-06-05
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Expires: 2003-09-30
Abstract
Abstract A low energy electron beam of ions of an element to be imparted in polymeric material is formed and accelerated, the beam being subjected to electromagnetic separation so that only a high purity stream of the ion of this element impinges upon the substrate for implantation herein.
Inventors
- 👤 Kolyo T. Kolev
- 👤 Lilly B. Peeva
- 👤 Assen E. Djakov
- 👤 Rossen A. Yankov
- 👤 Blagoy G. Amov
- 👤 Stoyan B. Stoyanov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:12
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/123; B; B29; B29C; B29C59/00; B29C59/16; C23; C23C; C23C14/00; C23C14/22; C23C14/48; D; D06; D06M; D06M10/00; D06M10/02; D06M10/025; B29C35/00; B29C35/02; B29C35/08; B29C35/0866; B29C2035/0872; D06M2101/00; D06M2101/02; D06M2101/04; D06M2101/06; D06M2101/16; D06M2101/18; D06M2101/20; D06M2101/30; D06M2101/34; D06M2200/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A method of implanting elements of a substance in a body of a polymeric material, comprising the steps of: (a) ionizing said substance and producing an ion beam of said element together with other elements derived from said substance; (b) accelerating said beam to provide an energy of the ions of said element and substantially 10 2 to 10 7 electronvolts; (c) subjecting said beam to electromagnetic separation whereby a substantially pure stream of ions of said element at said energy is formed; and (d) training said stream with an ion current of substantially 10 -8 to 10 -2 A/cm 2 onto said body to implant said ions of said element in a surface zone to a depth of up to substantially 10 -6 m in an implantation dose of substantially 10 10 to 10 23 ions per cm 2 , said stream being directed against said body under a pressure of 10 -5 to 10 -4 Torr and said element being selected from the group which consists of aluminum, tin, nickel, boron, phosphorus, silicon, carbon and oxygen.
Claim 2
Independent Claim
178 words
A method of implanting elements of a substance in a body of a polymeric material, comprising the steps of: (a) ionizing said substance and producing an ion beam of said element together with other elements derived from said substance; (b) accelerating said beam to provide an energy of the ions of said element and substantially 10 2 to 10 7 electronvolts; (c) subjecting said beam to electromagnetic separation whereby a substantially pure stream of ions of said element at said energy is formed; and (d) training said stream with an ion current of substantially 10 -8 to 10 -2 A/cm 2 onto said body to implant said ions of said element in a surface zone to a depth of up to substantially 10 -6 m in an implantation dose of substantially 10 10 to 10 23 ions per cm 2 , said stream being directed against said body under a pressure of 10 -5 to 10 -4 Torr and said element being selected from the group which consists of aluminum, tin, nickel, boron, phosphorus, silicon, carbon and oxygen.
References Cited (Backward Citations)
US4199650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |