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US4691015A Expired / Lapsed US ⏱️ 0.0 years remaining

Hydroxylamines derived from hindered amines

Assignee: BASF Corp
•
Filing: 1985-03-21
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Granted: 1987-09-01
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Expires: 2005-03-21
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Abstract

Abstract Hydroxylamines derived from hindered amines are effective in stabilizing polyolefin compositions containing a stabilizer or mixture of stabilizers selected from the group consisting of the phenolic antioxidants, the hindered amine light stabilizers, the alkylated hydroxybenzoate light stabilizers, the ultraviolet light absorbers, the organic phosphorus compounds, the alkaline metal salts of fatty acids and the thiosynergists, against degradation upon high temperature extrusion, exposure to the combustion products of natural gas, gamma irradiation or upon storage for extended periods.

Inventors

  • 👤 Rudolf A. Behrens
  • 👤 Raymond Seltzer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 08:39
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3435; C08K5/32; C08K5/3442; C08K5/3462

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 612 words
A compound of formula D, G, I-K or M ##STR10## wherein R is hydrogen or methyl n is 1 or 2, R 1 is hydroxyl, R 6 is hydrogen, C 1 -C 12 alkyl, allyl, benzyl, glycidyl or C 2 -C 6 alkoxyalkyl; when n is 1 R 7 is hydrogen, C 1 -C 12 alkyl, C 3 -C 5 alkenyl, C 7 -C 9 aralkyl, C 5 -C 7 cycloalkyl, C 2 -C 4 hydroxyalkyl, C 2 -C 6 alkoxyalkyl, C 6 -C 10 aryl, glycidyl, a group of the formula --(CH 2 ) m --COO--Q or of the formula --(CH 2 ) m --O--CO--Q wherein m is 1 or 2, and Q is C 1 -C 4 alkyl or phenyl; or when n is 2, R 7 is C 2 -C 12 alkylene, C 6 -C 12 arylene, a group --CH 2 CH(OH)--CH 2 --O--X--O--CH 2 --CH(OH)--CH 2 -- wherein X is C 2 -C 10 alkylene, C 6 -C 15 arylene or C 6 -C 12 cycloalkylene, or a group --CH 2 CH(OZ 1 )CH 2 --(OCH 2 )CH 2 ) 2 -- wherein Z 1 is hydrogen, C 1 -C 18 alkyl, allyl, benzyl, C 2 -C 12 alkanoyl or benzoyl; when n is 1, T 4 is hydrogen, C 1 -C 18 alkyl, C 5 -C 7 cycloalkyl, C 2 -C 8 alkenyl unsubstituted or substituted by a cyano, carbonyl or carbamide group, or it is glycidyl, a group of the formula --CH 2 CH(OH)--Z or of the formula --CONH--Z and Z is hydrogen, methyl or phenyl; or when n is 2, T 4 is C 2 -C 12 alkylene, C 6 -C 12 arylene, xylylene, a --CH 2 CH(OH)--CH 2 group, or a group --CH 2 --CH(OH)--CH 2 --O--X--O--CH 2 --CH(OH)--CH 2 -- wherein X is C 2 -C 10 alkylene, C 6 -C 15 arylene or C 6 -C 12 cycloalkylene; or, provided that R 3 is not alkanoyl, alkenoyl or benzoyl, R 4 can also be divalent acyl radical of an aliphatic. cycloaliphatic or aromatic dicarboxylic acid or dicarbamic acid, or can be the group --CO--; or R 3 and R 4 together when p is 1 can be the cyclic acyl radical of an aliphatic or aromatic 1,2- or 1,3-dicarboxylic acid; T 5 is methyl, T 6 is methyl or ethyl, or T 5 and T 6 together are tetramethylene or pentamethylene; M and Y are independently methylene or carbonyl, but are not both carbonyl; T 10 and T 11 are independently alkylene of 2 to 12 carbon atoms, or T 11 is ##STR11## T 8 and T 9 are independently hydrogen, alkyl of 1 to 18 carbon atoms, or T 8 and T 9 together are alkylene of 4 to 6 carbon atoms, or 3-oxapentamethylene, k is 2 to 100, T 12 is ##STR12## where a, b and c are independently 2 or 3, and d is 0 or 1; and e is 3 or 4; E 1 and E 2 , being different, each are oxo or imino, E 3 is hydrogen, alkyl of 1 to 30 carbon atoms, phenyl, naphthyl, said phenyl or said naphthyl substituted by chloride or by alkyl of 1 to 4 carbon atoms, or phenylalkyl of 7 to 12 carbon atoms, or said phenylalkyl substituted by alkyl of 1 to 4 carbon atoms, and E 4 is hydrogen, alkyl of 1 to 30 carbon atoms, phenyl, naphthyl or phenylalkyl of 7 to 12 carbon atoms, or E 3 and E 4 together are polymethylene of 4 to 17 carbon atoms, or said polymethylene substituted by up to four alkyl groups of 1 to 4 carbon atoms.
Claim 2
Dependent Claim 612 words
A compound of formula D, G, I-K or M ##STR10## wherein R is hydrogen or methyl n is 1 or 2, R 1 is hydroxyl, R 6 is hydrogen, C 1 -C 12 alkyl, allyl, benzyl, glycidyl or C 2 -C 6 alkoxyalkyl; when n is 1 R 7 is hydrogen, C 1 -C 12 alkyl, C 3 -C 5 alkenyl, C 7 -C 9 aralkyl, C 5 -C 7 cycloalkyl, C 2 -C 4 hydroxyalkyl, C 2 -C 6 alkoxyalkyl, C 6 -C 10 aryl, glycidyl, a group of the formula --(CH 2 ) m --COO--Q or of the formula --(CH 2 ) m --O--CO--Q wherein m is 1 or 2, and Q is C 1 -C 4 alkyl or phenyl; or when n is 2, R 7 is C 2 -C 12 alkylene, C 6 -C 12 arylene, a group --CH 2 CH(OH)--CH 2 --O--X--O--CH 2 --CH(OH)--CH 2 -- wherein X is C 2 -C 10 alkylene, C 6 -C 15 arylene or C 6 -C 12 cycloalkylene, or a group --CH 2 CH(OZ 1 )CH 2 --(OCH 2 )CH 2 ) 2 -- wherein Z 1 is hydrogen, C 1 -C 18 alkyl, allyl, benzyl, C 2 -C 12 alkanoyl or benzoyl; when n is 1, T 4 is hydrogen, C 1 -C 18 alkyl, C 5 -C 7 cycloalkyl, C 2 -C 8 alkenyl unsubstituted or substituted by a cyano, carbonyl or carbamide group, or it is glycidyl, a group of the formula --CH 2 CH(OH)--Z or of the formula --CONH--Z and Z is hydrogen, methyl or phenyl; or when n is 2, T 4 is C 2 -C 12 alkylene, C 6 -C 12 arylene, xylylene, a --CH 2 CH(OH)--CH 2 group, or a group --CH 2 --CH(OH)--CH 2 --O--X--O--CH 2 --CH(OH)--CH 2 -- wherein X is C 2 -C 10 alkylene, C 6 -C 15 arylene or C 6 -C 12 cycloalkylene; or, provided that R 3 is not alkanoyl, alkenoyl or benzoyl, R 4 can also be divalent acyl radical of an aliphatic. cycloaliphatic or aromatic dicarboxylic acid or dicarbamic acid, or can be the group --CO--; or R 3 and R 4 together when p is 1 can be the cyclic acyl radical of an aliphatic or aromatic 1,2- or 1,3-dicarboxylic acid; T 5 is methyl, T 6 is methyl or ethyl, or T 5 and T 6 together are tetramethylene or pentamethylene; M and Y are independently methylene or carbonyl, but are not both carbonyl; T 10 and T 11 are independently alkylene of 2 to 12 carbon atoms, or T 11 is ##STR11## T 8 and T 9 are independently hydrogen, alkyl of 1 to 18 carbon atoms, or T 8 and T 9 together are alkylene of 4 to 6 carbon atoms, or 3-oxapentamethylene, k is 2 to 100, T 12 is ##STR12## where a, b and c are independently 2 or 3, and d is 0 or 1; and e is 3 or 4; E 1 and E 2 , being different, each are oxo or imino, E 3 is hydrogen, alkyl of 1 to 30 carbon atoms, phenyl, naphthyl, said phenyl or said naphthyl substituted by chloride or by alkyl of 1 to 4 carbon atoms, or phenylalkyl of 7 to 12 carbon atoms, or said phenylalkyl substituted by alkyl of 1 to 4 carbon atoms, and E 4 is hydrogen, alkyl of 1 to 30 carbon atoms, phenyl, naphthyl or phenylalkyl of 7 to 12 carbon atoms, or E 3 and E 4 together are polymethylene of 4 to 17 carbon atoms, or said polymethylene substituted by up to four alkyl groups of 1 to 4 carbon atoms.
Claim 3
Dependent Claim 29 words
The compound of formula D according to claim 1 wherein R 1 is hydroxyl, R is hydrogen, R 6 is hydrogen, R 7 is dodecyl and n is 1.
Claim 4
Dependent Claim 32 words
The compound of formula G according to claim 1 wherein n is 2, T 4 is ethylene, M is methylene, Y is carbonyl and T 5 and T 6 are each methyl.
Claim 5
Dependent Claim 18 words
The compound of formula I according to claim 1 wherein T 5 and T 6 are each methyl.
Claim 6
Dependent Claim 42 words
A compound of formula J according to claim 1 wherein k is 2 to 100, T 5 and T 6 are each methyl, T 10 is hexamethylene and T 11 is ##STR13## where T 8 is hydrogen and T 9 is tert-octyl.
Claim 7
Dependent Claim 41 words
A compound of formula J according to claim 1 wherein k is 2 to 100, T 5 and T 6 are each methyl, T 10 is hexamethylene and T 11 is ##STR14## where T 8 and T 9 together are 3-oxapentamethylene.
Claim 8
Dependent Claim 30 words
The compound of formula K according to claim 1 wherein T 5 and T 6 are each methyl, R 3 is n-butyl, e is 4 and T 12 is ##STR15##
Claim 9
Dependent Claim 35 words
The compound of formula M according to claim 1 wherein T 5 and T 6 are each methyl, E 1 is oxo, E 2 is imino and E 3 and E 4 together are undecamethylene.
Claim 10
Dependent Claim 5 words
The compound which is bis-(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl)butyl-(3,5-di-tert-butyl-4-hydroxybenzyl)malonate.
Claim 11
Dependent Claim 5 words
The compound which is bis-(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl)butyl-(3,5-di-tert-butyl-4-hydroxybenzyl)malonate.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-08-31 1991-03-02 1991-09-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-08-31 1995-03-02 1995-09-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-08-31 1999-03-02 1999-09-01 $7700.00 Window Closed / Lapsed

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