US3708331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for sealing contained sterilized foods
Assignee: Chase W & Co
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Filing: 1970-11-13
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Granted: 1973-01-02
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Expires: 1990-11-13
Abstract
Abstract A thermoplastic composition for high temperature short-time process in can sealing which comprises an elastometer dispersed in a volatile organic solvent system and includes a fossil resin to improve the sealing performance of the composition when exposed to temperatures of the order in excess of about 200*C.
Inventors
- 👤 F Chase
- 👤 A Leydon
- 👤 M Brenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:38
CPC Classifications
C; C08; C08L; C08L11/00; B; B29; B29D; B29D99/00; B29D99/0053; C08L9/00; C08L9/06; C09; C09J; C09J109/00; C09J109/06; C09J111/00; C09K; C09K3/00; C09K3/10; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/26; C08K; C08K3/00; C08K3/34; C08K3/346; C08K5/00; C08K5/01; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/10; C08L2666/00; C08L2666/02; C09K2200/00; C09K2200/02; C09K2200/0239; C09K2200/06; C09K2200/0607; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
44 words
A can end which includes a gasket in its sealing area, said gasket being a dried film of the composition used in claim 1, wherein the mixture of elastomers is composed of about 55 parts polychloroprene and 45 parts of a 50-50 butadiene-styrene copolymer.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |