US4439615A
Expired / Lapsed
US
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Mercaptophenol stabilizers
Assignee: BASF Corp
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Filing: 1982-07-19
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Granted: 1984-03-27
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Expires: 2002-07-19
Abstract
Abstract Compounds of the formula V ##STR1## wherein R 2 is straight-chain or branched alkyl of 1 to 8 carbon atoms, cycloalkyl, aryl, alkaryl or aralkyl, L is a bivalent radical, for example --SCH 2 CO.O(CH 2 CH 2 S) y --CH 2 CH 2 -- or --O.COC p H 2p -- wherein y is a number from 1 to 3 and p is a number from 1 to 18.
Inventors
- 👤 Siegfried Rosenberger
- 👤 Samuel Evans
- 👤 Bernard Gilg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:38
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C07; C07C; C07C323/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
102 words
A compound of the formula V ##STR19## wherein R 2 is straight-chain or branched alkyl of 1 to 8 carbon atoms, C 5 -C 8 -cycloalkyl, C 6 -C 10 -aryl, C 7 -C 10 -alkaryl or C 7 -C 10 -aralkyl, L is one of the bivalent radicals --SCH 2 CO.OCH 2 CH 2 --, --SCH 2 CO.O(CH 2 CH 2 S) y --CH 2 CH 2 --, --O.CO.C p H 2p --, --SC p H 2p -- or --O.C p H 2p --, y is a number from 1 to 3 and p is a number from 1 to 18.
Claim 2
Dependent Claim
102 words
A compound of the formula V ##STR19## wherein R 2 is straight-chain or branched alkyl of 1 to 8 carbon atoms, C 5 -C 8 -cycloalkyl, C 6 -C 10 -aryl, C 7 -C 10 -alkaryl or C 7 -C 10 -aralkyl, L is one of the bivalent radicals --SCH 2 CO.OCH 2 CH 2 --, --SCH 2 CO.O(CH 2 CH 2 S) y --CH 2 CH 2 --, --O.CO.C p H 2p --, --SC p H 2p -- or --O.C p H 2p --, y is a number from 1 to 3 and p is a number from 1 to 18.
Claim 3
Dependent Claim
38 words
A compound according to claim 1 of the formula V, wherein L is a bivalent radical --SCH 2 CO.O(CH 2 CH 2 S) y --CH 2 CH 2 --, wherein y is a number from 1 to 3.
Claim 4
Dependent Claim
30 words
A compound according to claim 1 of the formula V, wherein L is a bivalent radical --O.CO.C p H 2p --, wherein p is a number from 1 to 18.
Claim 5
Dependent Claim
10 words
A compound according to claim 1 of the formula ##STR20##
Claim 6
Dependent Claim
10 words
A compound according to claim 1 of the formula ##STR21##
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) | 1987-03-27 | 1987-09-26 | 1988-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-27 | 1991-09-26 | 1992-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-27 | 1995-09-26 | 1996-03-27 | $7700.00 | Window Closed / Lapsed |