US4418195A
Expired / Lapsed
US
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Silicon-containing quaternary ammonium thiazines
Assignee: Baker Hughes Holdings LLC
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Filing: 1977-07-11
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Granted: 1983-11-29
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Expires: 1997-07-11
Abstract
Abstract This invention relates to silicon-containing thiazines and to the process of preparing them. These are illustrated by the following formulae: <IMAGE> +TR <IMAGE> where R and R' are substituted groups, for example hydrocarbon groups such as alkyl, aryl, cycloalkyl, etc.; A is alkylene, Z is a sulfur-containing group such as S, SO, SO2 and X is an anion. These compositions have a wide variety of uses including their use as corrosion inhibitors, microbiocides, etc.
Inventors
- 👤 Patrick M. Quinlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:54
CPC Classifications
A; A01; A01N; A01N55/00; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
31 words
A compound of the formula ##STR12## where R and R' are alkyl, aryl, aralkyl and cycloalkyl; Z is S, SO, SO 2 ; A is alkylene; and X is an anion.
Claim 2
Dependent Claim
31 words
A compound of the formula ##STR12## where R and R' are alkyl, aryl, aralkyl and cycloalkyl; Z is S, SO, SO 2 ; A is alkylene; and X is an anion.
Claim 3
Dependent Claim
21 words
A compound of claim 1 where R and R' are alkyl; Z is SO 2 ; and X is an anion.
Claim 4
Dependent Claim
21 words
A compound of claim 2 where R and R' are lower alkyl, A is lower alkylene and X is a halide.
Claim 5
Dependent Claim
22 words
A compound of claim 3 where R and R' are methyl, ethyl, or propyl, and A is --CH 2 ) 2-3 .
Claim 6
Dependent Claim
27 words
A compound of claim 4 of the formula ##STR13## where R and R' are ethyl, methyl, or propyl or ##STR14## where R is ethyl, methyl, or propyl.
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) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |