Patent US4153597A successfully refreshed from Google Patents.
US4153597A
Expired / Lapsed
US
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Hindered phenolic nitro compounds as antioxidants
Assignee: Uniroyal Chemical Co Inc
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Filing: 1978-06-26
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Granted: 1979-05-08
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Expires: 1998-06-26
Abstract
Abstract {PG,1 A stabilizer suitable for use to protect organic materials into which it is soluble or miscible against oxidative degradation having the general formula {r1 {tc,1 {rb HO{M,1 {AB,1111 {MR,1 {AB,7777 {MR,1 {US,5 {BN,4 {RD,11447799CCFF/135 {A,2 {BN,DDD {A,6 {BN,BBB {A,4 {BN,4 {SD,5 {S,5 CH{HD 2{L CH{HD 2{AB,4 {M,1 {AD,8 O{MR,1 C{AB,4 OCH{HD 2{L {M,1 {AB,0 R{HD 1{MR,1 {AB,8 R{HD 2{MR,1 C{AB,4 NO{HD 2{RE {PS {PS wherein R{HD 1 {L and R{HD 2 {L are lower alkyl or a radical of the structure {r1 {tc,1 {rb {ab,4 CH{HD 2{AB,4 O{AB,4 {M,1 {AD,8 O{MR,1 C{AB,4 CH{HD 2{L CH{HD 2{US,5 {BN,4 {RD,11447799CCFF/135 {A,3 {BN,333 {A,5 {BN,555 {A,4 {BN,4 {SD,5 {S,5 {M,1 {AB,FFFF {MR,1 {AB,9999 {MR,1 OH{RE {PS {PS wherein {37 x{38 {0 represents a tertiary butyl radical.
Inventors
- 👤 Edward L. Wheeler
- 👤 Elmar H. Jancis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:05
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/20; C09K15/24; C08; C08K; C08K5/00; C08K5/16; C08K5/32
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
39 words
A compound of the formula ##STR10## wherein R 1 and R 2 are each independently selected from the group consisting of linear or branched alkyl radicals having 1 to 6 carbon atoms and a radical of the structure ##STR11##
Claim 2
Dependent Claim
39 words
A compound of the formula ##STR10## wherein R 1 and R 2 are each independently selected from the group consisting of linear or branched alkyl radicals having 1 to 6 carbon atoms and a radical of the structure ##STR11##
Claim 3
Dependent Claim
14 words
The compound according to claim 1 wherein R 1 and R 2 are methyl.
Claim 4
Dependent Claim
21 words
The compound according to claim 1 wherein R 1 is methyl and R 2 is a radical of the structure ##STR12##
Claim 5
Dependent Claim
21 words
The compound according to claim 1 wherein R 1 is ethyl and R 2 is a radical of the structure ##STR13##
Claim 6
Dependent Claim
19 words
The compound according to claim 1 wherein R 1 and R 2 are each radicals of the structure ##STR14##
Claim 7
Dependent Claim
57 words
A composition comprising an organic material normally subject to oxidative deterioration and a stabilizing amount of a compound having the general formula ##STR15## wherein R 1 and R 2 are each independently selected from the group consisting of linear or branched lower alkyls radicals having 1 to 6 carbon atoms and a radical of the structure ##STR16##
Claim 8
Dependent Claim
57 words
A composition comprising an organic material normally subject to oxidative deterioration and a stabilizing amount of a compound having the general formula ##STR15## wherein R 1 and R 2 are each independently selected from the group consisting of linear or branched lower alkyls radicals having 1 to 6 carbon atoms and a radical of the structure ##STR16##
Claim 9
Dependent Claim
14 words
The composition according to claim 6 where the said organic material is a polyolefin.
Claim 10
Dependent Claim
11 words
The composition according to claim 7 where the polyolefin is polypropylene.
Claim 11
Dependent Claim
18 words
The composition according to claim 6 where the organic material is an ethylene-propylene-non-conjugated diene terpolymer, polyethylene, or polystyrene.
Claim 12
Dependent Claim
15 words
A composition according to claim 9 where said non-conjugated diene is dicyclopentadiene or ethylidene norbornene.
Claim 13
Dependent Claim
20 words
The composition of claim 6 wherein the said organic material is a mixture of polypropylene and an ethylene-propylene-non-conjugated diene terpolymer.
Claim 14
Dependent Claim
23 words
The composition according to claim 6 wherein said organic material is a polyolefin and the stabilizer is a compound having the formula ##STR17##
Claim 15
Dependent Claim
19 words
A composition of matter according to claims 6 or 12 wherein a dialkyl thiodipropionate is used as a co-stabilizer.
Claim 16
Dependent Claim
50 words
A stabilizer composition comprising (1) a compound of the general formula ##STR18## wherein R 1 and R 2 are each independently selected from the group consisting of linear or branched alkyl radicals having 1 to 6 carbon atoms and a radical of the structure ##STR19## and (2) a dialkyl thiodipropionate.
Claim 17
Dependent Claim
50 words
A stabilizer composition comprising (1) a compound of the general formula ##STR18## wherein R 1 and R 2 are each independently selected from the group consisting of linear or branched alkyl radicals having 1 to 6 carbon atoms and a radical of the structure ##STR19## and (2) a dialkyl thiodipropionate.
Claim 18
Dependent Claim
17 words
The composition of claim 14 wherein the compound and the dialkyl thiodipropionate are present in stabilizing amounts.
Claim 19
Dependent Claim
17 words
The compound of claim 1 wherein R 1 and R 2 are C 1 -C 4 alkyl.
Claim 20
Dependent Claim
18 words
The composition according to claim 6 wherein R 1 and R 2 are C 1 -C 4 alkyl.
Claim 21
Dependent Claim
17 words
The composition of claim 14 wherein R 1 and R 2 are C 1 -C 4 alkyl.
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) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |