US4287345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyfunctional disulfide compounds having S--S exchange reactivity
Assignee: Toyo Jozo KK
•
Filing: 1980-01-11
•
Granted: 1981-09-01
•
Expires: 2000-01-11
Abstract
Abstract A polyfunctional disulfide compound, useful as a cross-linking reagent having S--S exchange reactivity, of the formula ##STR1## wherein R is 2-benzothiazolyl or 2-pyridyl-N-oxide and X is a spacer group having an alkylene group directly bonded to each S--S group.
Inventors
- 👤 Kikuo Kotani
- 👤 Kunio Ohyama
- 👤 Nobuaki Nakagawa
- 👤 Tadashiro Fujii
- 👤 Susumu Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:55
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/89; C07D213/04; C07D213/60; C07D213/62; C07D213/70; C07D213/71; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/76; C07D277/78; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/531; G01N33/532; G01N33/535
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
42 words
A polyfunctional disulfide compound of the formula ##STR19## wherein R is 2-benzothiazolyl or 2-pyridyl-N-oxide and X is a C 2-10 spacer group which may have hydroxy substituents, amide linkage or ether linkage having an alkylene group directly bonded to each S-S group.
Claim 2
Dependent Claim
42 words
A polyfunctional disulfide compound of the formula ##STR19## wherein R is 2-benzothiazolyl or 2-pyridyl-N-oxide and X is a C 2-10 spacer group which may have hydroxy substituents, amide linkage or ether linkage having an alkylene group directly bonded to each S-S group.
Claim 3
Dependent Claim
16 words
A compound as claimed in claim 1, wherein X is a spacer group having amide bond.
Claim 4
Dependent Claim
16 words
The compound claimed in claim 1, wherein X is a spacer group having an ether bond.
Claim 5
Dependent Claim
19 words
A compound as claimed in claim 1, wherein X is a member selected from the group consisting of: ##STR20##
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) | 1984-08-31 | 1985-03-02 | 1985-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-31 | 1989-03-02 | 1989-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-31 | 1993-03-02 | 1993-09-01 | $7700.00 | Window Closed / Lapsed |