US3660333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax compositions containing an ethylene-vinyl acetate copolymer an organic acid and a polyvinyl alkyl ether
Assignee: Atlantic Richfield Co
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Filing: 1969-07-22
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Granted: 1972-05-02
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Expires: 1989-07-22
Abstract
Abstract THIS INVENTION RELATES TO WAX COMPOSITIONS CONTAINING A WAX, AN ETHYLENE-VINYL ACETATE COPOLYMER, AN ACID COMPONENT AND A POLYVINYL ALKYL ETHER. MOST PREFERABLY THE POLYVINYL ALKYL ETHER IS EITHER METHYL ETHER OR POLYVINYL ISOBUTYL ETHER. THESE COMPOSITIONS HAVE HIGHLY IMPROVED RESISTANCE TO STRESS CRACKING AND IMPROVED SEAL STRENGTH. THEY CAN BE UTILIZED AS HOT MELT COATINGS FOR ITEMS SUCH AS PAPERBOARD AND CORRUGATED BOARD FOR USE IN THE PACKAGING INDUSTRY AND PARTICULARLY AS PRESSURE SENSITIVE ADHESIVE COATINGS.
Inventors
- 👤 Charles J Kremer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:51
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C08; C08L; C08L91/00; C08L91/06; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/28; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2865; Y10T428/2878; Y10T428/2891; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808; Y10T428/31844; Y10T428/31848; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31931
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |