US3557064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanizable composition
Assignee: Polysar Ltd
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Filing: 1969-02-11
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Granted: 1971-01-19
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Expires: 1989-02-11
Abstract
Abstract A SOLID VULCANIZATE IS PREPARED FROM A MIXTURE OF (1) A LIQUID POLYMER OF A CONJUGATED DIOLEFIN CONTAINING MORE THAN ONE ACTIVE HALOGEN ATOM PER POLYMERIC MOLECULE AND (2) A POLYAMINE SALT OF A POLYCARBOXYLIC ACID BY HEATING IT AT A TEMPERATURE ABOVE THE DECOMPOSITION TEMPERATURE OF SAID SALT. THE MIXTURE WHICH IS STORABLE AT ROOM TEMPERATURE IS SUITABLE FOR USE AS PREMIXED AND CURABLE SEALANTS.
Inventors
- 👤 Douglas Cameron Edwards
- 👤 Peter Noel Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:49
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/19; C08C; C08C19/00; C08C19/30; C08C19/32; C08K5/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |