US3410709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a polyethylene coating on a metal
Assignee: Scholven Chemie AG
•
Filing: 1965-09-22
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Granted: 1968-11-12
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Expires: 1985-09-22
Abstract
No abstract record available.
Inventors
- 👤 Meyer Franz-Josef
- 👤 Rensmann Leo
- 👤 Dorrscheidt Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:17
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; C; C09; C09D; C09D123/00; C09D123/02; C09D123/04; C09D123/06; B05D2507/00; B05D2507/01; B05D7/148; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
82 words
METHOD OF APPLYING A PLASTIC PROTECTIVE COATING TO A METAL ARTICLE WHICH COMPRISES CONTACTING FINELY DIVIDED, POLYETHYLENE ADMIXED WITH AN ORGANIC PEROXIDE CROSSLINKING AGENT THEREFOR, WITH THE SURFACE OF THE ARTICLE, AND HEATING THE POLYETHYLENE DURING SAID CONTACTING TO SINTER THE POLYETHYLENE AND FORM A COATING THEREOF OVER THE ARTICLE, SAID HEATING BEING AT A TEMPERATURE AND FOR A TIME SUCH THAT SUBSTANTIALLY NO CROSS-LINKING OCCURS, AND THEREAFTER HEATING THE COATING TO EFFECT CROSS-LINKING AND TRANSFORM THE POLYETHYLENE INTO AN INFUSIBLE COATING.
Claim 2
Dependent Claim
82 words
METHOD OF APPLYING A PLASTIC PROTECTIVE COATING TO A METAL ARTICLE WHICH COMPRISES CONTACTING FINELY DIVIDED, POLYETHYLENE ADMIXED WITH AN ORGANIC PEROXIDE CROSSLINKING AGENT THEREFOR, WITH THE SURFACE OF THE ARTICLE, AND HEATING THE POLYETHYLENE DURING SAID CONTACTING TO SINTER THE POLYETHYLENE AND FORM A COATING THEREOF OVER THE ARTICLE, SAID HEATING BEING AT A TEMPERATURE AND FOR A TIME SUCH THAT SUBSTANTIALLY NO CROSS-LINKING OCCURS, AND THEREAFTER HEATING THE COATING TO EFFECT CROSS-LINKING AND TRANSFORM THE POLYETHYLENE INTO AN INFUSIBLE COATING.
Claim 3
Dependent Claim
16 words
METHOD OF CLAIM 1, WHEREIN SAID ORGANIC CROSS-LINKING AGENT IS A,A''-BIS-T-BUTYLPEROXY-DI-ISOPROPYLBENZENE, DICUMYLPEROXIDE, OR A MIXTURE THEREOF.
References Cited (Backward Citations)
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US3032816A
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US2844489A
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US3043716A
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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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |