Patent US3690325A successfully refreshed from Google Patents.
US3565838A
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US
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Nonadhesive surface treating compositions
Assignee: Imperial Chemical Industries Ltd
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Filing: 1968-11-20
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Granted: 1971-02-23
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Expires: 1988-11-20
Abstract
Abstract A COMPOSITION SUITABLE FOR COATING PAPERS, FILMS AND FOILS TO IMPART GOOD RELEASE CHARACTERISTICS IS DISCLOSED. THE COMPOSITION CONTAINS AN ORGANOHYDROGENPOLYSILOXANE, A LINEAR DIORGANOPOLYSILOXANE HAVING TERMINAL HYDROXY GROUPS OR GROUPS READILY HYDROLYSABLE TO HYDROXY GROUPS, A POLYSILOXANE RESIN, AN AMINO COMPOUND SUCH AS TETRAETHYLENE-PENTAMINE AND A TIN CURING AGENT SUCH AS AN ORGANOTIN ACYLATE. THE COMPOSITION ARE USEFUL FOR COATING PAPER AND OTHER SUBSTRATES WHEN USED AS A PROTECTIVE BACKING FOR ARTICLES COATED WITH ADHESIVES.
Inventors
- 👤 Hugh Cuthbert Atkinson
- 👤 Robert Muir Gibbon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:48
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/32; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/14; C08G77/16; C08G77/18; C08G77/20; C08G77/22; C08G77/24; C08G77/26; C08G77/70; C08J2483/00
Claims Analysis
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |