US2840491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for coating polyethylene with haloethylene polymers and composite articles thereby obtained
Assignee: Dow Chemical Co
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Filing: 1956-09-04
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Granted: 1958-06-24
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Expires: 1976-09-04
Abstract
No abstract record available.
Inventors
- 👤 Dallas G Grenlcy
- 👤 Harold J Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:50
CPC Classifications
B; B32; B32B; B32B27/00; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/048; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; C08J2427/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/26; Y10T428/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
METHOD FOR COATING A POLYETHYLENE ARTICLE WITH A HALOETHYLENE POLYMER RESIN SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE POLYMERS THAT CONTAIN IN THE POLYMER MOLECULE AT LEAST ABOUT 80 PERCENT BY WEIGHT OF VINYL CHLORIDE AND VINYLIDENE CHLORIDE POLYMERS THAT CONTAIN IN THE POLYMER MOLECULE AT LEAST ABOUT 60 PERCENT BY WEIGHT OF VINYLIDENE CHLORIDE WHICH COMPRISES INCORPORATING A MINOR PROPORTION OF A SURFACE ACTIVE POLYELECTROLYTE MATERIAL THAT CONTAINS A PLURALITY OF IONIZABLE GROUPS IN ITS MOLECULE AND IS A POLYMERIC CARBOXYLIC ACID COMPOUND, WHICH ACID COMPOUND IS A MIXTURE OF FREE POLYMERIC CARBOXYLIC ACIDS HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 1200 AND 1250 AND CAPABLE OF BEING APPROXIMATELY REPRESENTED BY THE EMPIRICAL FORMULA:
Claim 2
Dependent Claim
116 words
METHOD FOR COATING A POLYETHYLENE ARTICLE WITH A HALOETHYLENE POLYMER RESIN SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE POLYMERS THAT CONTAIN IN THE POLYMER MOLECULE AT LEAST ABOUT 80 PERCENT BY WEIGHT OF VINYL CHLORIDE AND VINYLIDENE CHLORIDE POLYMERS THAT CONTAIN IN THE POLYMER MOLECULE AT LEAST ABOUT 60 PERCENT BY WEIGHT OF VINYLIDENE CHLORIDE WHICH COMPRISES INCORPORATING A MINOR PROPORTION OF A SURFACE ACTIVE POLYELECTROLYTE MATERIAL THAT CONTAINS A PLURALITY OF IONIZABLE GROUPS IN ITS MOLECULE AND IS A POLYMERIC CARBOXYLIC ACID COMPOUND, WHICH ACID COMPOUND IS A MIXTURE OF FREE POLYMERIC CARBOXYLIC ACIDS HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 1200 AND 1250 AND CAPABLE OF BEING APPROXIMATELY REPRESENTED BY THE EMPIRICAL FORMULA:
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) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |