Patent US2074895A successfully refreshed from Google Patents.
Patent US3686326A successfully refreshed from Google Patents.
US3686326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Allylic sulfide reaction products
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1970-02-11
•
Granted: 1972-08-22
•
Expires: 1990-02-11
Abstract
Abstract Open-chain, bis- and tris-sulfides are synthesized by the free radical, liquid phase addition of simple thiols to diallylic sulfides. Similarly, addition of thiol acids results in the corresponding mono- and di-thiol esters, and the poly addition of dithiols to diallylic sulfides yields terminally difunctional polythioethers. The mono- and diadduct compositions are useful as pesticides, while the poly adducts are useful in the preparation of polymers, particularly as basic ingredients for mastics compositions.
Inventors
- 👤 Alexis Oswald
- 👤 Daniel N Hall
- 👤 Karl Griesbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:23
CPC Classifications
C; C07; C07C; C07C327/00; C07C321/00; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C08; C08G; C08G75/00; C08G75/02; C08G75/04; C08G75/045; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/372
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
9 words
The product of claim 1 wherein R is methyl.
Claim 2
Dependent Claim
11 words
The product of claim 1 wherein T and U are hydrogen.
Claim 3
Dependent Claim
13 words
The product of claim 1, wherein R'''' is 2-butene-1,4-ylene, 2-butyne-1,4-ylene, p-xylylene, or p-bis-dimethylenebenzene.
Claim 4
Dependent Claim
9 words
A radical type polyaddition product having the general formula
Claim 5
Dependent Claim
13 words
The product of claim 5, wherein R'''' is 2-butene-1,4-ylene, 2-butyne-1,4-ylene, p-xylylene, or p-bis-dimethylenebenzene.
Claim 6
Dependent Claim
61 words
A radical type polyaddition product having the general formula wherein R is selected from the group consisting of hydrogen and methyl; and R'''' is trimethylene or thio-bis-trimethylene n is an integer; and T and U are each selected from the group consisting of hydrogen, 3-allylthiopropyl, 3-methally-2-methylthiopropyl, and mixtures thereof; said product having a molecular weight of about 500 to about 5,000.
Claim 7
Dependent Claim
8 words
A radical-type polyaddition product having the general formula
Claim 8
Dependent Claim
9 words
The product of claim 8 wherein R'''' is trimethylene.
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |