US2918387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding of perhalogen polymers to metallic substrates
Assignee: Wyeth Holdings LLC
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Filing: 1956-06-11
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Granted: 1959-12-22
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Expires: 1976-06-11
Abstract
No abstract record available.
Inventors
- 👤 William M Wooding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:18
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/08; B05D5/083; C; C08; C08G; C08G12/00; C08G12/02; C09; C09D; C09D161/00; C09D161/20; C09J; C09J161/00; C09J161/20; B05D2202/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS OF FORMING AN ADHERENT COATING OF NORMALLY NON-ADHESIVE THERMOPLASTIC PERHALOGEN VINYL POLYMER ON A MATERIAL SURFACE, WHICH INCLUDES THE STEPS OF CONTACTING SAID SURFACE WITH A DILUTE SOLUTION OF A CATIONIC WATER-SOLUBLE ORGANIC NITROGEN BASE POLYMER HAVING A MOLECULAR WEIGHT IN EXCESS OF 1,000 THEREBY ADSORBING AT LEAST A PART OF SAID ORGANIC NITROGEN POLYMER ON SAID SURFACE, WASHING SAID SURFACE WHILE WET TO REMOVE ANY UNADSORBED POLYMER PRESENT, AND FORMING A LAYER OF THERMOPLASTIC PERHALOGEN VINYL POLYMER IN MOLTEN FORM THEREOVER.
Claim 2
Dependent Claim
84 words
A PROCESS OF FORMING AN ADHERENT COATING OF NORMALLY NON-ADHESIVE THERMOPLASTIC PERHALOGEN VINYL POLYMER ON A MATERIAL SURFACE, WHICH INCLUDES THE STEPS OF CONTACTING SAID SURFACE WITH A DILUTE SOLUTION OF A CATIONIC WATER-SOLUBLE ORGANIC NITROGEN BASE POLYMER HAVING A MOLECULAR WEIGHT IN EXCESS OF 1,000 THEREBY ADSORBING AT LEAST A PART OF SAID ORGANIC NITROGEN POLYMER ON SAID SURFACE, WASHING SAID SURFACE WHILE WET TO REMOVE ANY UNADSORBED POLYMER PRESENT, AND FORMING A LAYER OF THERMOPLASTIC PERHALOGEN VINYL POLYMER IN MOLTEN FORM THEREOVER.
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) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |