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Hindered phenolic amides

Assignee: BASF Corp
•
Filing: 1979-05-10
•
Granted: 1981-01-20
•
Expires: 1999-05-10
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Abstract

Abstract A phenol of the formulae I, II or III ##STR1## in which R 1 , R 2 and R 3 are independent of one another and one of these is C 1 -C 12 -alkyl, C 5 -C 6 -cycloalkyl or C 7 -C 9 -aralkyl and the others are hydrogen, C 1 -C 12 -alkyl or C 5 -C 6 -cycloalkyl, R 4 , R 5 , R 6 and R 7 are independent of one another and one of these is C 1 -C 12 -alkyl or C 5 -C 6 -cycloalkyl and the others are hydrogen, C 1 -C 12 -alkyl or C 5 -C 6 cycloalkyl, or R 4 and R 5 , or R 6 and R 7 , together with the C atom which links them, form a 5-12-membered ring, R 8 , R 9 and R 10 are independent of one another and one of these is C 1 -C 12 -alkyl, C 5 -C 6 -cycloalkyl or C 7 -C 9 -aralkyl and the others are hydrogen, C 1 -C 12 -alkyl or C 5 -C 6 -cycloalkyl, x and y independently of one another are 0, 1, 2 or 3, one of m and n is 1 and the other is 0 or 1, A is a monovalent, divalent or trivalent hydrocarbon radical which, in formula II, can also be interrupted by S, and Z is 1, 2 or 3, corresponding to the valency of A, and, in compounds of the formula II and III, m is 1 and R 4 and R 5 independently of one another are C 1 -C 12 -alkyl or C 5 -C 6 -cycloalkyl and, in compounds of the formula I, R 6 can be bridged with A to form a carbocyclic structure as stabilizers for organic material.

Inventors

  • 👤 Siegfried Rosenberger
  • 👤 Andreas Schmidt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 17:07
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20; C09; C09K; C09K15/00; C09K15/04; C09K15/20; C09K15/24

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 64 words
A phenol of the formulae I, II or III ##STR32## wherein R 1 , R 2 , R 8 and R 9 , independently of one another, are methyl or tert.-butyl, x and y, independently of one another, are 1 or 2, one of m and n is 1 and the other is 0 or 1 and A is C 2 -C 8 alkylene.
Claim 2
Dependent Claim 64 words
A phenol of the formulae I, II or III ##STR32## wherein R 1 , R 2 , R 8 and R 9 , independently of one another, are methyl or tert.-butyl, x and y, independently of one another, are 1 or 2, one of m and n is 1 and the other is 0 or 1 and A is C 2 -C 8 alkylene.
Claim 3
Dependent Claim 60 words
A phenol according to claim 1, wherein R 1 , R 2 , R 8 and R 9 , independently of one another, are methyl or tert.-butyl, x and y, independently of one another, are 1 or 2, one of m and n is 1 and the other is 0 or 1 and A is C 2 -C 4 alkylene.
Claim 4
Dependent Claim 10 words
A phenol according to claim 1, said phenol being N,N'-di[3-(4-hydroxy-3,5-di-t-butylphenyl)-2,2-dimethyl-propionyl]-hexamethylene-1,6-diamine.
Claim 5
Dependent Claim 10 words
A phenol according to claim 1, said phenol being N,N'-di-(4-hydroxy-3,5-di-t-butylphenylpropionyl)-2,11-dimethyl-2,11-diaminododecane.

References Cited (Backward Citations)

GB965373A Cited
US3927091A Cited
US3584047A Cited
US3925306A Cited
US4100191A Cited
US3984460A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-01-20 1984-07-21 1985-01-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-01-20 1988-07-21 1989-01-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-01-20 1992-07-21 1993-01-20 $7700.00 Window Closed / Lapsed

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