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US3825567A
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Siliceous dioxolane derivatives
Assignee: Dynamit Nobel AG
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Filing: 1972-11-29
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Granted: 1974-07-23
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Expires: 1992-11-29
Abstract
Abstract GLYCIDYLOXYPROPYLALKOXYSILANES ARE PRODUCED BY THERMAL TREATMENT OF NOVEL SILICEOUS DIOXOLANE DERIVATIVES OF THE FORMULA: 2-(R=),4-((R'')A-SI(-OR")(3-A)-(CH2)3-O-CH2-1,3-DIOXOLANE WHEREIN A IS 0 OR 1 AND R REPRESENTS AN OXYGEN RADICAL OR TWO HYDROGEN ATOMS AND R'' AND R" EACH REPRESENTS AN ALKYL RADICAL, WHEREIN THE R"''S CAN BE THE SAME OR DIFFERENT. THE GLYCIDYL PRODUCTS ARE USEFUL AS ADHESIVES.
Inventors
- 👤 H Kotzsch
- 👤 H Vahlensieck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:08
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/205
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |