Patent US4163006A successfully refreshed from Google Patents.
US4163006A
Expired / Lapsed
US
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Compositions stabilized with polyalkylthiobenzenes
Assignee: BASF Corp
•
Filing: 1977-05-09
•
Granted: 1979-07-31
•
Expires: 1997-05-09
Abstract
Abstract Organic materials are stabilized against oxidative and ultraviolet light degradation by incorporating therein polyalkylthiobenzenes having the formula ##STR1## WHEREIN R is alkyl or cycloalkyl, R' is alkyl, n is 2 to 6 and x is 0 to 4, provided that n+x is not greater than 6.
Inventors
- 👤 John d. Spivack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:16
CPC Classifications
C; C07; C07C; C07C321/00; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/375; C09; C09K; C09K15/00; C09K15/04; C09K15/10; C10; C10M; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/086; C10N; C10N2040/00; C10N2040/135; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10S524/929
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
24 words
A method of stabilizing organic material subject to oxidative deterioration by incorporating therein 0.01 to 5% of a stabilizer having the formula ##STR5## wherein
Claim 2
Independent Claim
24 words
A method of stabilizing organic material subject to oxidative deterioration by incorporating therein 0.01 to 5% of a stabilizer having the formula ##STR5## wherein
Claim 3
Dependent Claim
30 words
R is an alkyl group of 1 to 24 carbon atoms, a cycloalkyl group of 4 to 7 carbon atoms or an alkylcycloalkyl group of 7 to 30 carbon atoms,
Claim 4
Dependent Claim
30 words
R is an alkyl group of 1 to 24 carbon atoms, a cycloalkyl group of 4 to 7 carbon atoms or an alkylcycloalkyl group of 7 to 30 carbon atoms,
Claim 5
Dependent Claim
11 words
R' is an alkyl group of 1 to 18 carbon atoms,
Claim 6
Dependent Claim
11 words
R' is an alkyl group of 1 to 18 carbon atoms,
Claim 7
Dependent Claim
8 words
n is an integer from 2 to 6
Claim 8
Dependent Claim
8 words
n is an integer from 2 to 6
Claim 9
Dependent Claim
18 words
x is an integer from 0 to 4 provided that n + x is not greater than 6.
Claim 10
Dependent Claim
18 words
x is an integer from 0 to 4 provided that n + x is not greater than 6.
Claim 11
Dependent Claim
23 words
A method of claim 1 wherein said organic material is selected from an olefinic polymer, chlorinated polyolefin, a diene rubber and lubricating oil.
Claim 12
Dependent Claim
6 words
A method of claim 2 wherein
Claim 13
Dependent Claim
9 words
R is alkyl of 2 to 18 carbon atoms,
Claim 14
Dependent Claim
9 words
R is alkyl of 2 to 18 carbon atoms,
Claim 15
Dependent Claim
8 words
R' is alkyl of 1 to 8 carbons,
Claim 16
Dependent Claim
8 words
R' is alkyl of 1 to 8 carbons,
Claim 17
Dependent Claim
6 words
n is 2 to 4 and
Claim 18
Dependent Claim
6 words
n is 2 to 4 and
Claim 19
Dependent Claim
5 words
x is 0 to 2.
Claim 20
Dependent Claim
5 words
x is 0 to 2.
Claim 21
Dependent Claim
9 words
A method of claim 3 wherein x is 0.
Claim 22
Dependent Claim
11 words
A method of claim 4 wherein the polymeric material is polyethylene.
Claim 23
Dependent Claim
10 words
A method of claim 5 wherein the stabilizer is 1,2,4,5-tetra-n-octylthiobenzene.
Claim 24
Dependent Claim
12 words
A method of claim 3 wherein the organic material is lubricating oil.
Claim 25
Dependent Claim
10 words
A method of claim 1 containing additionally a phenolic antioxidant.
Claim 26
Dependent Claim
34 words
A method of claim 8 wherein the phenolic antioxidant is selected from the group consisting of pentaerythritol tetrakis-[3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)-propionate] dioctadecyl 3,5-di-tert-butyl-4-hydroxybenzyl phosphonate N,N'-hexamethylene bis (3,5-di-tert-butyl-4-hydroxyhydrocinnamide) octadecyl β-(3,5-di-tert-butyl-4-hydroxphenyl)propionate thiodiglycol bis-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate 2,4-bis-(n-octylthio)-6-(3,5-di-tert-butyl-4-hydroxyanilino)-1,3,5-triazine 1,6-hexamethylene bis-(3,5-di-tert-butyl-4-hydroxyhydrocinnamate) 1,3,5-tris(3,5-di-t-4-hydroxybenzyl)isocyanurate 1,1,3-tris(5-tert-butyl-4-hydroxy-2-methyl phenyl)-butane
Claim 27
Dependent Claim
24 words
A composition of matter comprising an organic material subject to oxidative deterioration and 0.01% to 5% of a stabilizer having the formula ##STR6## wherein
Claim 28
Dependent Claim
24 words
A composition of matter comprising an organic material subject to oxidative deterioration and 0.01% to 5% of a stabilizer having the formula ##STR6## wherein
Claim 29
Dependent Claim
30 words
R is an alkyl group of 1 to 24 carbon atoms, a cycloalkyl group of 4 to 7 carbon atoms or an alkylcycloalkyl group of 7 to 30 carbon atoms,
Claim 30
Dependent Claim
30 words
R is an alkyl group of 1 to 24 carbon atoms, a cycloalkyl group of 4 to 7 carbon atoms or an alkylcycloalkyl group of 7 to 30 carbon atoms,
Claim 31
Dependent Claim
11 words
R' is an alkyl group of 1 to 18 carbon atoms,
Claim 32
Dependent Claim
11 words
R' is an alkyl group of 1 to 18 carbon atoms,
Claim 33
Dependent Claim
8 words
n is a integer from 2 to 6
Claim 34
Dependent Claim
8 words
n is a integer from 2 to 6
Claim 35
Dependent Claim
18 words
x is an integer from 0 to 4 provided that n + x is not greater than 6.
Claim 36
Dependent Claim
18 words
x is an integer from 0 to 4 provided that n + x is not greater than 6.
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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) | 1982-07-30 | 1983-01-29 | 1983-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-30 | 1987-01-29 | 1987-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-30 | 1991-01-29 | 1991-07-31 | $7700.00 | Window Closed / Lapsed |