US3798196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur containing organo-organo-oxysilane
Assignee: DEUTSCHE GOLD SILBER SCHEIDEANSTALT DT
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Filing: 1971-07-16
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Granted: 1974-03-19
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Expires: 1991-07-16
Abstract
Abstract THERE ARE PREPARED SULFUR CONTAINING ORGANO-ORGANOOXYSILANES OF THE FORMULA A-X-Z WHERE A IS N=C-S- R-S-, RO-CS-S-, RS-CS-S-, R1-CS-S-, WHERE R AND R1 ARE UNIVALENT ORGANIC RESIDUES, X IS A DIVALENT ORGANIC RESIDUE, Z IS -SIR"(OR'')2; -SI(OR'')3 -SI(OR'')2-O-SI(OR'')3; -SI(OR'')2-NH-SI(OR'')3; -SI(OR'')2-O-SI(OR'')2-X-A; -SI(OR'')2-NH-SI(OR'')2-X-A WHERE R'' AND R'''' ARE ALKYL GROUPS OF 1 TO 12 CARNON ATOMS. THE COMPOUNDS ARE USEFUL AS ADDITIVES TO CROSSLINKABLE MIXTURES CONTAINING ORGANIC POLYMERS.
Inventors
- 👤 G Rocktaeschel
- 👤 F Thurn
- 👤 H Westlinning
- 👤 H Fleischhauer
- 👤 W Schwarze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:32
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; C08K9/06; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/10; C07F7/18; C07F7/1804; C08K5/00; C08K5/54; C08K5/548
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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |