US3853588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinylidene chloride-topcoated, orthophosphate-coated polymeric objects
Assignee: EIDP Inc
•
Filing: 1973-06-05
•
Granted: 1974-12-10
•
Expires: 1993-06-05
Abstract
Abstract Organic, polymeric shaped objects such as films coated with aluminum and/or ferric orthophosphate and topcoated with a vinylidene chloride copolymer containing about 2 to 30% of a polymeric epoxy resin.
Inventors
- 👤 V Haskell
- 👤 J Hecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:26
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/02; B05D7/04; C; C08; C08J; C08J7/00; C08J7/04; C08J7/042; C08J7/0423; C08J7/043; C08J7/048; B05D3/00; B05D3/10; B05D3/101; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/31935
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
IN AN ARTICLE COMPRISING AN ORGANIC, POLYMERIC SHAPED ARTICLE HAVING A SUBSTANTIALLY CONTINUOUS GAS-IMPERMEABLE COATING ON AT LEAST ONE SURFACE THEREOF ALUMINUM ORTHOPHOSPHATE OR IRON ORTHOPHOSPHATE, WHEREIN THE ATOM RATIO OF METAL TO PHOSPHORUS IS FROM 2.3 TO 0.5 THE IMPROVEMENT WHICH CONSISTS IN SAID COATING HAVING A TOPCOATING OF A VINYLIDENE CHLORIDE POLYMER CONTAINING FROM ABOUT 2 TO 30 WEIGHT PERCENT OF A POLYMERIC EPOXY RESIN.
Claim 2
Dependent Claim
67 words
IN AN ARTICLE COMPRISING AN ORGANIC, POLYMERIC SHAPED ARTICLE HAVING A SUBSTANTIALLY CONTINUOUS GAS-IMPERMEABLE COATING ON AT LEAST ONE SURFACE THEREOF ALUMINUM ORTHOPHOSPHATE OR IRON ORTHOPHOSPHATE, WHEREIN THE ATOM RATIO OF METAL TO PHOSPHORUS IS FROM 2.3 TO 0.5 THE IMPROVEMENT WHICH CONSISTS IN SAID COATING HAVING A TOPCOATING OF A VINYLIDENE CHLORIDE POLYMER CONTAINING FROM ABOUT 2 TO 30 WEIGHT PERCENT OF A POLYMERIC EPOXY RESIN.
Claim 3
Dependent Claim
13 words
An article as defined in claim 1 wherein the orthophosphate is aluminum orthophosphate.
Claim 4
Dependent Claim
13 words
An article as defined in claim 1 wherein the orthophosphate is iron orthophosphate.
Claim 5
Dependent Claim
31 words
An article as defined in claim 1 wherein the vinylidene chloride polymer is a copolymer of at least 88% vinylidene chloride units and less than 5% copolymerized aliphatic carboxylic acid units.
Claim 6
Dependent Claim
18 words
An article as defined in claim 4 wherein said topcoat contains about 0.5 to 5% of a wax.
Claim 7
Dependent Claim
20 words
An article as defined in claim 5 wherein said epoxy resin percentage is from about 12 to 25 weight percent.
Claim 8
Dependent Claim
16 words
An article as defined in claim 5 wherein the orthophosphate coating contains a melamine formaldehyde resin.
Claim 9
Dependent Claim
22 words
An article as defined in claim 5 wherein said surface is first conditioned to promote adhesion by electric discharge or flame treatment.
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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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |