US3968280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefins/polycarbonamide powder compositions suitable for the production of continuous coating on substrates such as glass or metal
Assignee: Standard Oil Co
•
Filing: 1974-06-28
•
Granted: 1976-07-06
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Expires: 1994-06-28
Abstract
Abstract Polyolefins/polycarbonamide powder compositions suitable for the production of continuous coatings on substrates such as glass or metal. The powder compositions can be deposited on substrates and then fused to the substrate at a temperature of about 190 to 230°C.
Inventors
- 👤 Wassily Poppe
- 👤 Ivor R. Fielding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:15
CPC Classifications
C; C08; C08L; C08L77/00; C03; C03C; C03C17/00; C03C17/28; C03C17/32; C09; C09D; C09D123/00; C09D123/02; Y; Y10; Y10S; Y10S524/00; Y10S524/904; Y10S525/00; Y10S525/934; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1317; Y10T428/1321; Y10T428/1352; Y10T428/1355; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31551; Y10T428/31623; Y10T428/31645; Y10T428/31678; Y10T428/31681; Y10T428/31692; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31746; Y10T428/3175; Y10T428/31757; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
40 words
A substrate bearing a layer comprising a compatible blend of from about 25 to 90 parts by weight polyolefin and from about 75 to 10 parts by weight of polycarbonamide of a dicarboxylic acid having at least 18 carbon atoms.
Claim 2
Dependent Claim
40 words
A substrate bearing a layer comprising a compatible blend of from about 25 to 90 parts by weight polyolefin and from about 75 to 10 parts by weight of polycarbonamide of a dicarboxylic acid having at least 18 carbon atoms.
Claim 3
Dependent Claim
21 words
The article of claim 1, wherein said polyolefin comprises a resinous polymer of propylene contaning at least 75% by weight propylene.
Claim 4
Dependent Claim
19 words
The article of claim 2 wherein said dicarboxylic acid having at least 18 carbon atoms comprises a dimer acid.
Claim 5
Dependent Claim
12 words
The article of claim 2, wherein said substrate is a metal substrate.
Claim 6
Dependent Claim
23 words
The article of claim 4 wherein said metal substrate is a metal can blank and the layer is about 0.25 to 20 mils.
Claim 7
Dependent Claim
13 words
The article of claim 5 wherein said layer is 0.25 to 2 mils.
Claim 8
Dependent Claim
24 words
The article of claim 2 wherein said substrate is the exterior of a glass container and said layer is at least 1 mil thick.
Claim 9
Dependent Claim
13 words
The article of claim 7 wherein said layer is 6 to 8 mils.
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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) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |