US5232623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst and process for producing organic polysulfide
Assignee: Phillips Petroleum Co
•
Filing: 1992-08-17
•
Granted: 1993-08-03
•
Expires: 2012-08-17
Abstract
Abstract A composition comprising a base and an alkoxylated compound selected from an alkoxylated alcohol and alkoxylated mercaptan is disclosed. The composition can be used to catalyze the reaction of a mercaptan and an elemental sulfur to produce a polysulfide compound. The polysulfide compound can be further treated with an alkylene oxide to reduce the mercaptan sulfur content of the polysulfide compound.
Inventors
- 👤 James E. Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:35
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/22; C07C319/24
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
35 words
A composition comprising a base selected from the group consisting of organic base, inorganic base, and mixtures thereof and an alkoxylated compound selected from the group consisting of alkoxylated alcohol, alkoxylated mercaptan and mixtures thereof.
Claim 2
Dependent Claim
35 words
A composition comprising a base selected from the group consisting of organic base, inorganic base, and mixtures thereof and an alkoxylated compound selected from the group consisting of alkoxylated alcohol, alkoxylated mercaptan and mixtures thereof.
Claim 3
Dependent Claim
61 words
A composition according to claim 1 wherein said base is selected from the group consisting of tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrapropylammonium hydroxide, tetramethylammonium bisulfide, tetraethylammonium bisulfide, lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, sodium bicarbonate, sodium carbonate, sodium oxide, magnesium oxide, calcium oxide, calcium carbonate, potassium carbonate, sodium phenoxide, barium phenoxide, calcium phenoxide, RONa, RSNa, and mixtures thereof.
Claim 4
Dependent Claim
12 words
A composition according to claim 1 wherein said base is sodium hydroxide.
Claim 5
Dependent Claim
81 words
A composition according to claim 1 wherein said alkoxylated alcohol has a general formula of R 1 O[CH 2 CH(R 2 )O] n H wherein R 1 is a hydrocarbyl radical selected from the group consisting of alkyl radical, alkylaryl radical, aryl radical, cycloalkyl radical and alkenyl radical; R 2 is selected from the group consisting of hydrogen, C 1 -C 16 alkyl radical, and C 2 -C 16 alkenyl radical; and n is a number of 1 to about 20.
Claim 6
Dependent Claim
44 words
A composition according to claim 4 wherein R 1 is a C 6 -C 18 alkyl radical, R 2 is selected from the group consisting of hydrogen and a C 1 -C 3 alkyl radical, and n is from about 2 to about 12.
Claim 7
Dependent Claim
28 words
A composition according to claim 5 wherein R 1 is a C 10 -C 16 alkyl radical, R 2 is hydrogen and n is from 5 to 10.
Claim 8
Dependent Claim
47 words
A composition according to claim 6 wherein said alkoxylated alcohol is TERGITOL® 15-S-7 which is an ethoxylated alcohol surfactant and has the formula of R 1 O(CH 2 CH 2 O) 7 H, wherein R 1 is a secondary alkyl radical having 11 to 15 carbon atoms.
Claim 9
Dependent Claim
82 words
A composition according to claim 1 wherein said alkoxylated mercaptan has a general formula of R 1 S[CH 2 CH(R 2 )O] n H wherein R 1 is a hydrocarbyl radical selected from the group consisting of alkyl radical, alkenyl radical, alkylaryl radical, aryl radical and cycloalkyl radical; R 2 is selected from the group consisting of hydrogen, C 1 -C 16 alkyl radical, and C 2 -C 16 alkenyl radical; and n is a number of from 1 to about 20.
Claim 10
Dependent Claim
44 words
A composition according to claim 8 wherein R 1 is a C 6 -C 18 alkyl radical, R 2 is selected from the group consisting of hydrogen and a C 1 -C 3 alkyl radical, and n is from about 2 to about 12.
Claim 11
Dependent Claim
28 words
A composition according to claim 9 wherein R 1 is a C 10 -C 16 alkyl radical, R 2 is hydrogen and n is from 5 to 10.
Claim 12
Dependent Claim
41 words
A composition according to claim 10 wherein said alkoxylated mercaptan is AQUA-CLEEN® II which is an ethoxylated mercaptan surfactant having the formula of R 1 S(CH 2 CH 2 O) 7 H, wherein R 1 is mainly a tertiary dodecyl radical.
Claim 13
Dependent Claim
11 words
A composition according to claim 1 wherein said composition is heated.
Claim 14
Dependent Claim
47 words
A composition according to claim 12 wherein said composition comprising sodium hydroxide and TERGITOL® 15-S-7 which is an ethoxylated alcohol surfactant and has the formula of R 1 O(CH 2 CH 2 O) 7 H wherein R 1 is a secondary alkyl radical having 11-15 carbon atoms.
Claim 15
Dependent Claim
43 words
A composition according to claim 12 wherein said composition comprising sodium hydroxide and AQUA-CLEEN® II which is an ethoxylated mercaptan surfactant having the formula of R 1 S(CH 2 CH 2 O) 7 H wherein R 1 is mainly a tertiary dodecyl radical.
References Cited (Backward Citations)
US3022351A
Cited
US3308166A
Cited
US4279806A
Cited
US4415694A
Cited
US4745162A
Cited
US4870127A
Cited
US4876389A
Cited
US4804485A
Cited
US4868336A
Cited
US5001269A
Cited
US5068445A
Cited
US4937385A
Cited
US4933481A
Cited
US5091593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-02 | 1997-02-01 | 1997-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-02 | 2001-02-01 | 2001-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-02 | 2005-02-01 | 2005-08-03 | $7700.00 | Window Closed / Lapsed |