US3665025A
Expired / Lapsed
US
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Organo(halo) disulfur tin derivatives and the process of preparing the same
Assignee: M&T Chemicals Inc
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Filing: 1969-12-29
•
Granted: 1972-05-23
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Expires: 1989-12-29
Abstract
Abstract This invention comprises novel compounds exhibiting one direct carbon to tin bond, one direct halogen to tin bond and two direct sulfur to tin bonds, methods of preparing these novel compounds, and to polymers stabilized by these novel compounds against the deteriorative effects of heat and light.
Inventors
- 👤 Anatole Wowk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:30
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C08K5/58; C07; C07F; C07F7/00; C07F7/22; C07F7/226
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
29 words
The process of claim 1 wherein said sulfur containing compound of the formula R''(SH)y is an alkyl mercaptan of from one to 20 carbon atoms and y is 1.
Claim 2
Dependent Claim
19 words
The process of claim 1 wherein said sulfur containing compound is a dimercaptan HSR''SH wherein R'' is a hydrocarbon.
Claim 3
Dependent Claim
9 words
The process of claim 3 wherein R'' is aralkylene
Claim 4
Dependent Claim
9 words
The process of claim 3 wherein R'' is alkylene.
Claim 5
Dependent Claim
9 words
The process of claim 1 wherein R is alkyl
Claim 6
Dependent Claim
10 words
The process of claim 1 wherein X is a chloride.
Claim 7
Dependent Claim
130 words
The process for preparing compounds exhibiting one direct carbon to tin bond, one direct halogen to tin bond and two direct sulfur to tin bonds which comprises maintaining an aqueous reaction mixture containing RSnX3; adding to said aqueous reaction mixture a base in amount not stoichiometrically greater than the amount of RSnX3 thereby forming a precipitate containing RSn(OH)2X; recovering said precipitate from said aqueous reaction mixture, adding to said RSn(OH)2X, thus recovered, a sulfur containing organic compound of a formula selected from the group consisting of R''(SH)y and HSR''''COOR'''''' wherein R'' is a hydrocarbon radical having a valence of y, R'''' is a divalent hydrocarbon radical, R'''''' is a monovalent hydrocarbon radical and y is the integer 1 or 2 thereby forming said novel compound and recovering said novel compound.
Claim 8
Dependent Claim
20 words
The process of claim 8 wherein said sulfur containing compound is of the formula RSH wherein R is a hydrocarbon.
Claim 9
Dependent Claim
19 words
The process of claim 8 wherein said sulfur containing compound is an ester of a sulfur containing organic acid.
Claim 10
Dependent Claim
39 words
The compound which has the formula: wherein R is a monovalent hydrocarbon radical exhibiting from one to 18 carbon atoms, R'' is a divalent hydrocarbon radical exhibiting from one to 18 carbon atoms and X is a halogen atom.
Claim 11
Dependent Claim
9 words
The compound of claim 11 wherein R is alkyl.
Claim 12
Dependent Claim
9 words
The compound of claim 11 wherein R'' is aralkylene.
Claim 13
Dependent Claim
14 words
The compound of claim 11 which is monobutylmonochlorotin S, S''-p-xylyl- Alpha , Alpha ''-dimercaptide.
Claim 14
Dependent Claim
13 words
The compound of claim 11 wherein R is alkyl and R'' is alkylene.
Claim 15
Dependent Claim
9 words
The compound of claim 11 wherein X is chloride.
Claim 16
Dependent Claim
23 words
A compound in substantially pure form selected from those of the general formula wherein R represents an isooctyl, octadecyl, cyclohexyl, or dodecyl radical.
Claim 17
Dependent Claim
28 words
A compound in substantially pure form selected from those of the general formula wherein R represents a butyl or an n-octyl radical and R'' represents an isooctyl radical.
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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |