US4205176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ester substituted oxazolines
Assignee: Uniroyal Chemical Co Inc
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Filing: 1978-10-18
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Granted: 1980-05-27
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Expires: 1998-10-18
Abstract
Abstract Oxazolines having at least one 3,5-dialkyl-4-hydroxypheny l alkanoic acid ester substituent are provided. Such oxazolines are found to be useful an antioxidants in organic substances normally susceptible to oxidative deterioration.
Inventors
- 👤 Mary J. Zestermann
- 👤 John F. Hussar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:29
CPC Classifications
C; C07; C07C; C07C255/00; C07C37/00; C07C37/62; C07C51/00; C07C51/08; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/10; C07D263/14; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/35; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10S524/926
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
An oxazoline compounds having the following formula ##STR33## wherein R 1 is ##STR34## CH 3 or CH 3 --CH 2 , R 2 is, when n is 1, ##STR35## or an alkyl group having from 1 to 23 carbon atoms, R 2 is when n is 2, an alkylene group having from 1 to 8 carbon atoms, R 3 and R 4 are the same or different monovalent straight or branched chain alkyl groups having from 1 to 8 carbon atoms, n is 1 or 2 and x is an integer of from 1 to 4.
Claim 2
Dependent Claim
96 words
An oxazoline compounds having the following formula ##STR33## wherein R 1 is ##STR34## CH 3 or CH 3 --CH 2 , R 2 is, when n is 1, ##STR35## or an alkyl group having from 1 to 23 carbon atoms, R 2 is when n is 2, an alkylene group having from 1 to 8 carbon atoms, R 3 and R 4 are the same or different monovalent straight or branched chain alkyl groups having from 1 to 8 carbon atoms, n is 1 or 2 and x is an integer of from 1 to 4.
Claim 3
Dependent Claim
21 words
Oxazoline compounds according to claim 1 wherein at least one of R 3 or R 4 is a tertiary alkyl group.
Claim 4
Dependent Claim
11 words
Oxazoline compounds according to claim 2 wherein R 1 is ##STR36##
Claim 5
Dependent Claim
20 words
Oxazoline compounds according to claim 2 wherein R 2 is an alkylene group of from 1 to 8 carbon atoms.
Claim 6
Dependent Claim
11 words
Oxazoline compounds according to claim 2 wherein R 2 is ##STR37##
Claim 7
Dependent Claim
12 words
Oxazoline compounds according to claim 2 or 3 wherein n is 1.
Claim 8
Dependent Claim
12 words
Oxazoline compounds according to claims 2 or 3 wherein n is 2.
Claim 9
Dependent Claim
17 words
Oxazoline compounds according to claim 2, 3, 4, 5, or 6 wherein x is 1 or 2.
Claim 10
Dependent Claim
16 words
Oxazoline compounds according to claim 3 wherein the tertiary alkyl group is a tertiary butyl group.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-05-27 | 1983-11-26 | 1984-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-27 | 1987-11-26 | 1988-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-27 | 1991-11-26 | 1992-05-27 | $7700.00 | Window Closed / Lapsed |