US3632393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated polyolefin article
Assignee: Avisun Corp
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Filing: 1969-05-19
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Granted: 1972-01-04
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Expires: 1989-05-19
Abstract
Abstract A coating composition capable of forming a film on a polyolefin substrate is provided from a solution of (a) a cyclized rubber, and (b) at least one material selected from the group consisting of styrene polymers, chlorinated polyolefins and polyketone resins. The composition is useful as a primer for subsequently applied decorative or protective topcoats such as enamels and lacquers.
Inventors
- 👤 Wassily Poppe
- 👤 Habet M Kheighatian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:36
CPC Classifications
C; C09; C09D; C09D115/00; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C09D125/00; C09D125/02; C09D125/04; C08J2323/00; C08J2323/02; C08J2421/00; C08L; C08L15/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/31833; Y10T428/31855; Y10T428/31859
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
14 words
An article according to claim 1 wherein said polyolefin substrate is a propylene polymer.
Claim 2
Dependent Claim
15 words
An article according to claim 1 wherein said polyolefin substrate is a substantially crystalline polypropylene.
Claim 3
Dependent Claim
33 words
An article according to claim 1 wherein (b) is a polyketone resin having a molecular weight of about 300 to about 3,000 as determined by intrinsic viscosity and said polyolefin substrate is polypropylene.
Claim 4
Dependent Claim
23 words
An article according to claim 1 wherein (b) is a polyketone resin, and an acrylic lacquer topcoat is applied over the coating mixture.
Claim 5
Dependent Claim
34 words
An article according to claim 1 wherein said polyolefin substrate is a propylene polymer and wherein (b) is a polyketone resin having a molecular weight less than about 5,000 as determined by intrinsic viscosity.
Claim 6
Dependent Claim
12 words
An article according to claim 1 wherein (b) is a polyketone resin.
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |