Patent US4132702A successfully refreshed from Google Patents.
US4132702A
Expired / Lapsed
US
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Phenol esters and amides and polymers stabilized therewith
Assignee: BASF Corp
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Filing: 1976-07-27
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Granted: 1979-01-02
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Expires: 1996-07-27
Abstract
Abstract Compounds of the formula I ##STR1## in which R 1 and R 2 independently of one another denote alkyl, cycloalkyl or aralkyl, R 3 denotes hydrogen or, conjointly with R 1 , denotes tetramethylene, R 4 denotes hydrogen or lower alkyl or, conjointly with R 2 , denotes tetramethylene, R 5 denotes hydrogen, alkyl, aralkyl, acyloxyalkyl, oxaalkyl or phenyl, R 6 denotes hydrogen, alkhyl, phenyl or the group or, conjointly with R 5 , denotes alkylene, R 7 denotes hydrogen, alkyl, phenyl, benzyl or alkylphenyl or, conjointly with R 5 or R 6 , denotes alkylene or, conjointly with R 5 and R 6 , denotes alkanetriyl, R 5 , R 6 and R 7 together containing at least one carbon atom, Y denotes --O-- or --NH--, P denotes 1, 2, 3 or 4 and A denotes hydrogen or a group which is derived from an organic or inorganic oxygen acid A-(OH) p , are suitable for stabilizing organic material against thermo-oxidative degradation.
Inventors
- 👤 Andreas Schmidt
- 👤 Kurt Schwarzenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:54
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/6574; C07F9/65746; C07C; C07C215/00; C07C215/46; C07C215/48; C07C215/54; C07C275/00; C07C275/04; C07C275/20; C07C275/24; C07C323/00; C07C323/50; C07C323/51; C07C323/52; C07C329/00; C07C329/02; C07C329/04; C07C329/06; C07D; C07D251/00; C07D251/02; C07D251/12; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F9/06; C07F9/08; C07F9/09; C07F9/094; C07F9/141; C07F9/145; C07F9/65742
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
73 words
A compound of the formula wherein R 1 is alkyl having 1-4 carbon atoms and A is a group of the formula ##STR157## wherein n is 0 or 1, and R 9 is a direct bond, a straight-chain or branched alkylene group having 1 to 8 carbon atoms, a thioalkylene group having 2 to 4 carbon atoms, a phenylene group, or a straightchain or branched alkylenedioxy group having 2 to 6 carbon atoms.
Claim 2
Dependent Claim
73 words
A compound of the formula wherein R 1 is alkyl having 1-4 carbon atoms and A is a group of the formula ##STR157## wherein n is 0 or 1, and R 9 is a direct bond, a straight-chain or branched alkylene group having 1 to 8 carbon atoms, a thioalkylene group having 2 to 4 carbon atoms, a phenylene group, or a straightchain or branched alkylenedioxy group having 2 to 6 carbon atoms.
Claim 3
Dependent Claim
10 words
A compound of claim 1 wherein R 1 is tert-butyl.
Claim 4
Dependent Claim
9 words
A compound of claim 2 wherein n is 1.
Claim 5
Dependent Claim
44 words
A compound of claim 1 wherein A is derived from an acid selected from the group consisting of adipic, malonic, thiodipropionic acid, thiodiglycollic acid, sebacic, phthalic (and isomers), C 2 H 4 (S- C 2 H 4 COOH) 2 ##STR158## and 4,4'-diphenyl dicarboxylic acid.
Claim 6
Dependent Claim
6 words
Compound according to claim 1 ##STR159##
Claim 7
Dependent Claim
6 words
Compound according to claim 1 ##STR160##
Claim 8
Dependent Claim
6 words
Compound according to claim 1 ##STR161##
Claim 9
Dependent Claim
24 words
A compound of the formula ##STR162## wherein R' is alkyl having 1-4 carbon atoms and A is an acyl group derived from trimellitic acid.
Claim 10
Dependent Claim
24 words
A compound of the formula ##STR162## wherein R' is alkyl having 1-4 carbon atoms and A is an acyl group derived from trimellitic acid.
Claim 11
Dependent Claim
30 words
A compound of the formula ##STR163## wherein R 1 is alkyl having 1-4 carbon atoms, and A is an acyl group derived from thiophene 2,5-dicarboxylic acid, or N,N'-piperazine bis oxamide.
Claim 12
Dependent Claim
30 words
A compound of the formula ##STR163## wherein R 1 is alkyl having 1-4 carbon atoms, and A is an acyl group derived from thiophene 2,5-dicarboxylic acid, or N,N'-piperazine bis oxamide.
Claim 13
Dependent Claim
17 words
An organic composition of matter stabilized against thermo-oxidative degradation by incorporating therein a stabilizer of claim 1.
Claim 14
Dependent Claim
12 words
A composition of claim 10 wherein said organic material is a polymer.
Claim 15
Dependent Claim
10 words
A composition of claim 11 wherein said polymer is polyolefine.
Claim 16
Dependent Claim
10 words
A composition of claim 12, wherein said polyolefine is polypropylene.
Claim 17
Dependent Claim
15 words
A composition of matter comprising polypropylene which is stabilized with a compound of claim 2.
Claim 18
Dependent Claim
10 words
A polypropylene composition stabilized with a compound of claim 3.
Claim 19
Dependent Claim
10 words
A polypropylene composition stabilized with the compound of claim 5.
Claim 20
Dependent Claim
10 words
A polypropylene composition stabilized with the compound of claim 6.
Claim 21
Dependent Claim
10 words
A polypropylene composition stabilized with the compound of claim 7.
Claim 22
Dependent Claim
17 words
An organic composition of matter stabilized against thermo-oxidative degradation by incorporating therein a stabilizer of claim 4.
Claim 23
Dependent Claim
17 words
An organic composition of matter stabilized against thermo-oxidative degradation by incorporating therein a stabilizer of claim 9.
Claim 24
Dependent Claim
17 words
An organic composition of matter stabilized against thermo-oxidative degradation by incorporating therein a stabilizer of claim 8.
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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) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |