BR112019027881B1 - POLYETHYLENE TUBE, USE OF A MIXTURE, AND METHOD FOR STABILIZING A POLYETHYLENE TUBE - Google Patents

POLYETHYLENE TUBE, USE OF A MIXTURE, AND METHOD FOR STABILIZING A POLYETHYLENE TUBE Download PDF

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BR112019027881B1
BR112019027881B1 BR112019027881-8A BR112019027881A BR112019027881B1 BR 112019027881 B1 BR112019027881 B1 BR 112019027881B1 BR 112019027881 A BR112019027881 A BR 112019027881A BR 112019027881 B1 BR112019027881 B1 BR 112019027881B1
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tert
butyl
polyethylene
bis
component
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BR112019027881-8A
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BR112019027881A2 (en
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Tania Weyland
Marie Laure Bertet
Heinz Herbst
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Basf Se
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Priority claimed from PCT/EP2018/067893 external-priority patent/WO2019007935A1/en
Publication of BR112019027881A2 publication Critical patent/BR112019027881A2/en
Publication of BR112019027881B1 publication Critical patent/BR112019027881B1/en

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Abstract

Um tubo de polietileno compreendendo os componentes A) e B), em que o componente A) é um estabilizador de luz de amina impedida contendo um resíduo de triazina, o componente B) é uma hidrotalcita natural ou sintética e a razão em peso de componente A) para componente B) é 1:10 a 10:1.A polyethylene tube comprising components A) and B), wherein component A) is a hindered amine light stabilizer containing a triazine residue, component B) is a natural or synthetic hydrotalcite and the weight ratio of component A) for component B) is 1:10 to 10:1.

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[001] A presente invenção refere-se a um tubo de polietileno compreendendo os componentes A) e B), em que o componente A) é um estabilizador de luz de amina impedida contendo um resíduo de triazina, o componente B) é uma hidrotalcita natural ou sintética e a razão em peso de componente A) para componente B) é 1:10 a 10:1, preferivelmente 1:5 a 5:1.[001] The present invention relates to a polyethylene tube comprising components A) and B), wherein component A) is a hindered amine light stabilizer containing a triazine residue, component B) is a hydrotalcite natural or synthetic and the weight ratio of component A) to component B) is 1:10 to 10:1, preferably 1:5 to 5:1.

[002] Em mais detalhes, o tubo de acordo com a presente invenção preferivelmente consiste de uma composição de polietileno compreendendo os componentes A) e B) em uma razão em peso de 1:10 a 10:1.[002] In more detail, the tube according to the present invention preferably consists of a polyethylene composition comprising components A) and B) in a weight ratio of 1:10 to 10:1.

[003] Componente A) é em particular pelo menos um composto da fórmula (A-I), (A-II) ou (A-III) em que A11 é C2-C18 alquileno, C5-C7 cicloalquileno ou C1-C4 alquilenodi(C5-C7 cicloalquileno), os radicais A12 independentemente um do outro são hidrogênio, C1-C12 alquila ou C5-C12 cicloalquila, A13 e A14 independentemente um do outro são hidrogênio, C1C12 alquila, C5-C12 cicloalquila ou um grupo da fórmula (a-1), ou os radicais A13 e A14, junto com o átomo de nitrogênio ao qual eles estão ligados, formam um anel heterocíclico de 5 a 10 membros, e a1 é um número de 1 a 20, preferivelmente 2 a 20, e as unidades de repetição são idênticas ou diferentes; em que A21 e A25 independentemente um do outro são hidrogênio, C1-C12 alquila, C5-C12 cicloalquila ou um grupo da fórmula (a-1), A22, A23 e A24 independentemente um do outro são C2-C10 alquileno, e X1, X2, X3, X4, X5, X6, X7 e X8 independentemente um do outro são um grupo da fórmula (a-2), em que A26 é hidrogênio, C1-C12 alquila, C5-C12 cicloalquila ou um grupo da fórmula (a-1) como definido acima, e A27 tem um dos significados de A12; em que R1 e R2 independentemente um do outro são hidrogênio, C1- C22alquila, -O., -OH, -CH2CN, C1-C18 alcóxi, C2-C18 alcóxi substituído por -OH; C5-C12 cicloalcóxi, C3-C6 alquenila, C3-C6 alquenilóxi, C7-C9 fenilalquila não substituída ou substituída na fenila por 1, 2 ou 3 C1-C4 alquila; ou C1-C8 acila; e R3 e R4 independentemente um do outro são C1-C22 alquila ou um grupo da fórmula (a-3) em que R0 tem um dos significados de R1 e R2.[003] Component A) is in particular at least one compound of formula (AI), (A-II) or (A-III) where A11 is C2-C18 alkylene, C5-C7 cycloalkylene or C1-C4 alkylenedi(C5-C7 cycloalkylene), the radicals A12 independently of each other are hydrogen, C1-C12 alkyl or C5-C12 cycloalkyl, A13 and A14 independently one on the other are hydrogen, C1C12 alkyl, C5-C12 cycloalkyl or a group of formula (a-1), or the radicals A13 and A14, together with the nitrogen atom to which they are attached, form a 5- to 10-membered heterocyclic ring, and a1 is a number from 1 to 20, preferably 2 to 20, and the repeating units are identical or different; wherein A21 and A25 independently of each other are hydrogen, C1-C12 alkyl, C5-C12 cycloalkyl or a group of formula (a-1), A22, A23 and A24 independently of each other are C2-C10 alkylene, and X1, X2, X3, X4, X5, X6, X7 and X8 independently of each other are a group of formula (a-2), wherein A26 is hydrogen, C1-C12 alkyl, C5-C12 cycloalkyl or a group of formula (a-1) as defined above, and A27 has one of the meanings of A12; wherein R1 and R2 independently of each other are hydrogen, C1-C22alkyl, -O., -OH, -CH2CN, C1-C18 alkoxy, C2-C18 alkoxy substituted by -OH; C5-C12 cycloalkoxy, C3-C6 alkenyl, C3-C6 alkenyloxy, C7-C9 phenylalkyl unsubstituted or substituted on phenyl by 1, 2 or 3 C1-C4 alkyl; or C1-C8 acyl; and R3 and R4 independently of each other are C1-C22 alkyl or a group of formula (a-3) where R0 has one of the meanings of R1 and R2.

[004] O componente B) é preferivelmente um hidróxido misto da fórmula (B-I) ou (B-II). M2+1-aM3+a(OH)2(Ab-)a/b x c H2O (B-I) M2+dAl3+2(OH)2d+6-eb(Ab-)e x f H20 (B-II) M2+ é, por exemplo, Ca2+, Mg2+, Sr2+, Ba2+, Zn2+, Pb2+, Sn2+ ou Ni2+. M3+ é, por exemplo, Al3+, B3+ ou Bi3+. a é, por exemplo, um número até 0,5. Ab- é um ânion de valência b, por exemplo, Cl-, Br-, NO3-, CO32, SO42- ou SeO42-. b é, por exemplo, um número inteiro de 1 a 4. c é, por exemplo, zero ou um número até 2. d é, por exemplo, um número até 6. e é, por exemplo, um número até 2. f é, por exemplo, zero ou um número até 15.[004] Component B) is preferably a mixed hydroxide of formula (B-I) or (B-II). M2+1-aM3+a(OH)2(Ab-)a/b x c H2O (B-I) M2+dAl3+2(OH)2d+6-eb(Ab-)e x f H20 (B-II) M2+ is, therefore, example, Ca2+, Mg2+, Sr2+, Ba2+, Zn2+, Pb2+, Sn2+ or Ni2+. M3+ is, for example, Al3+, B3+ or Bi3+. a is, for example, a number up to 0.5. Ab- is an anion of valence b, for example, Cl-, Br-, NO3-, CO32, SO42- or SeO42-. b is, for example, an integer from 1 to 4. c is, for example, zero or a number up to 2. d is, for example, a number up to 6. e is, for example, a number up to 2. f is, for example, zero or a number up to 15.

[005] Hidrotalcitas que são de interesse são hidróxidos duplos em camadas que contêm camadas de hidróxido positivamente carregadas e ânions de equilíbrio de carga localizados na região da intercamada.[005] Hydrotalcites that are of interest are layered double hydroxides that contain positively charged hydroxide layers and charge balancing anions located in the interlayer region.

[006] O componente B) é em particular pelo menos UM carbonato e hidróxido de alumínio e magnésio hidratados que está, por exemplo, comercialmente disponível como Hycite®713, ®DHT-4A, ®DHT-4V, ®DHT- 4A-2, ®DHT-4C ou Sorbacid®911, ou carbonato e hidróxido de alumínio e zinco hidratados que está, por exemplo, comercialmente disponível como ®ZHT-4V ou Sorbacid®944, ou misturas dos mesmos.[006] Component B) is in particular at least ONE hydrated aluminum magnesium carbonate and hydroxide which is, for example, commercially available as Hycite®713, ®DHT-4A, ®DHT-4V, ®DHT-4A-2 , ®DHT-4C or Sorbacid®911, or hydrated zinc aluminum carbonate and hydroxide which is, for example, commercially available as ®ZHT-4V or Sorbacid®944, or mixtures thereof.

[007] De interesse particular é um carbonato e hidróxido de alumínio e magnésio hidratados que está, por exemplo, comercialmente disponível como Hycite®713 ou DHT-4A.[007] Of particular interest is a hydrated aluminum magnesium carbonate and hydroxide which is, for example, commercially available as Hycite®713 or DHT-4A.

[008] Exemplos de alquila tendo até 22 átomos de carbono são metila, etila, propila, isopropila, n-butila, sec-butila, isobutila, terc-butila, 2- etilbutila, n-pentila, isopentila, 1-metilpentila, 1,3-dimetilbutila, n-hexila, 1- metilhexila, n-heptila, isoheptila, 1,1,3,3-tetrametilbutila, 1-metilheptila, 3- metilheptila, n-octila, 2-etilhexila, 1,1,3-trimetilhexila, 1,1,3,3-tetrametil- pentila, nonila, decila, undecila 1-metilundecila, dodecila, 1,1,3,3,5,5-hexa- metilhexila, tridecila, tetradecila, pentadecila, hexadecila, heptadecila, octadecila e eicosila.[008] Examples of alkyl having up to 22 carbon atoms are methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, 2-ethylbutyl, n-pentyl, isopentyl, 1-methylpentyl, 1 ,3-dimethylbutyl, n-hexyl, 1-methylhexyl, n-heptyl, isoheptyl, 1,1,3,3-tetramethylbutyl, 1-methylheptyl, 3-methylheptyl, n-octyl, 2-ethylhexyl, 1,1,3 -trimethylhexyl, 1,1,3,3-tetramethyl-pentyl, nonyl, decyl, undecyl 1-methylundecyl, dodecyl, 1,1,3,3,5,5-hexa-methylhexyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl and eicosyl.

[009] C1-C18 alcóxi é, por exemplo, metóxi, etóxi, propóxi, isopropóxi, butóxi, isobutóxi, pentóxi, isopentóxi, hexóxi, heptóxi, octóxi, decilóxi, dodecilóxi, tetradecilóxi, hexadecilóxi ou octadecilóxi.[009] C1-C18 alkoxy is, for example, methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, pentoxy, isopentoxy, hexoxy, heptoxy, octoxy, decyloxy, dodecyloxy, tetradecyloxy, hexadecyloxy or octadecyloxy.

[0010] C2-C18 alcóxi substituído por -OH é, por exemplo, 2- hidroxietoxi.[0010] C2-C18 alkoxy substituted by -OH is, for example, 2-hydroxyethoxy.

[0011] C5-C12 cicloalquila é, por exemplo, ciclopentila, cicloexila, cicloheptila, ciclooctila, ciclodecila ou ciclododecila. C5-C8 cicloalquila, em particular cicloexila, é preferida.[0011] C5-C12 cycloalkyl is, for example, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclodecyl or cyclododecyl. C5-C8 cycloalkyl, in particular cyclohexyl, is preferred.

[0012] C5-C12 cicloalcóxi é, por exemplo, ciclopentóxi, ciclohexóxi, cicloheptóxi, ciclooctóxi, ciclodecilóxi ou ciclododecilóxi. C5-C8 cicloloalcóxi, em particular, ciclopentóxi e ciclohexóxi, são preferidos.[0012] C5-C12 cycloalkoxy is, for example, cyclopentoxy, cyclohexoxy, cycloheptoxy, cyclooctoxy, cyclodecyloxy or cyclododecyloxy. C5-C8 cycloalkoxy, in particular, cyclopentoxy and cyclohexoxy, are preferred.

[0013] C3-C6 alquenila é, por exemplo, alila, 2-metalila, butenila, pentenila ou hexenila. Alila é preferida. O átomo de carbono na posição 1 é preferivelmente saturado.[0013] C3-C6 alkenyl is, for example, allyl, 2-metalyl, butenyl, pentenyl or hexenyl. Alila is preferred. The carbon atom in position 1 is preferably saturated.

[0014] C3-C6 alquenilóxi é, por exemplo, propenilóxi.[0014] C3-C6 alkenyloxy is, for example, propenyloxy.

[0015] C7-C9 fenilalquila não substituída ou substituída na fenila por C1-C4 alquila é, por exemplo, benzila, 2-feniletila, metilbenzila, dimetilbenzila, trimetilbenzila ou terc-butilbenzila.[0015] C7-C9 phenylalkyl unsubstituted or substituted in phenyl by C1-C4 alkyl is, for example, benzyl, 2-phenylethyl, methylbenzyl, dimethylbenzyl, trimethylbenzyl or tert-butylbenzyl.

[0016] Exemplos de C1-C8 acila são formila, acetila, propionila, butirila, pentanoíla, hexanoíla, heptanoíla, octanoíla, acriloíla, metacriloíla e benzoíla. C1-C8 alcanoíla, C3-C8 alquenoíla e benzoíla são preferidas. Acetila e acriloíla são especialmente preferidas.[0016] Examples of C1-C8 acyl are formyl, acetyl, propionyl, butyryl, pentanoyl, hexanoyl, heptanoyl, octanoyl, acryloyl, methacryloyl and benzoyl. C1-C8 alkanoyl, C3-C8 alkenoyl and benzoyl are preferred. Acetyl and acryloyl are especially preferred.

[0017] Exemplos de alquileno tendo até 18 átomos de carbono são etileno, propileno, trimetileno, tetrametileno, pentametileno, 2,2- dimetiltrimetileno, hexametileno, trimetilhexametileno e octametileno. C2-C6 alquileno, em particular hexametileno é preferido.[0017] Examples of alkylene having up to 18 carbon atoms are ethylene, propylene, trimethylene, tetramethylene, pentamethylene, 2,2-dimethyltrimethylene, hexamethylene, trimethylhexamethylene and octamethylene. C2-C6 alkylene, in particular hexamethylene is preferred.

[0018] Um exemplo de C5-C7 cicloalquileno é ciclohexileno.[0018] An example of C5-C7 cycloalkylene is cyclohexylene.

[0019] Um exemplo de C1-C4 alquilenodi(C5-C7cicloalquileno) é metilenodiciclohexileno.[0019] An example of C1-C4 alkylenedi(C5-C7cycloalkylene) is methylenedicyclohexylene.

[0020] Um exemplo preferido de um anel heterocíclico de 5 a 7 membros é um grupo morfolino.[0020] A preferred example of a 5- to 7-membered heterocyclic ring is a morpholino group.

[0021] Os significados dos grupos terminais que saturam as valências livres nos compostos da fórmula (A-I) dependem dos processos usados para a sua preparação. Os grupos terminais podem ser modificados após a preparação dos compostos.[0021] The meanings of the terminal groups that saturate the free valences in the compounds of formula (A-I) depend on the processes used for their preparation. Terminal groups can be modified after preparing the compounds.

[0022] Se os compostos da fórmula (A-I) são preparados reagindo um composto da formula em que X0 é, por exemplo, halogênio, em particular cloro, e A13 e A14 são como definidos acima, com um composto da formula em que A11 e A12 são como definidos acima, o grupo terminal ligado ao radical diamino é, por exemplo, hidrogênio ou e o grupo terminal ligado ao radical triazina é, por exemplo, X0 ou [0022] If compounds of formula (AI) are prepared by reacting a compound of formula wherein X0 is, for example, halogen, in particular chlorine, and A13 and A14 are as defined above, with a compound of the formula where A11 and A12 are as defined above, the terminal group attached to the diamino radical is, for example, hydrogen or and the terminal group attached to the triazine radical is, for example, X0 or

[0023] Se X0 é halogênio, é vantajoso substituir o mesmo, por exemplo, por -OH ou um grupo amino quando a reação está completa. Exemplos de grupos amino que podem ser mencionados são pirrolidin-1-il, morfolino, -NH2, -N(Ci-C8)alquil)2 e -NRo(Ci-C8alquil), em que Ro é hidrogênio ou um grupo da fórmula (Ia).[0023] If X0 is halogen, it is advantageous to replace it, for example, with -OH or an amino group when the reaction is complete. Examples of amino groups that may be mentioned are pyrrolidin-1-yl, morpholino, -NH2, -N(C1-C8)alkyl)2 and -NRo(C1-C8alkyl), where Ro is hydrogen or a group of the formula ( Ia).

[0024] Um dos compostos preferidos da fórmula (I) éE2 é em que E1 ée a1 é um número de 1 a 10 preferivelmente 2 a 10. A preparação deste composto é descrita no exemplo 10 de US-A-6.046.304.[0024] One of the preferred compounds of formula (I) is E2 is where E1 is and a1 is a number from 1 to 10, preferably 2 to 10. The preparation of this compound is described in example 10 of US-A-6,046,304.

[0025] De acordo com uma modalidade preferida, A11 é C2-C10 alquileno, os radicais A12 independentemente um do outro são hidrogênio, C1-C4 alquila ou cicloexila, A13 e A14 independentemente um do outro são hidrogênio, C1C4 alquila, cicloexila ou um grupo da fórmula (a-1), ou os radicais A13 e A14, junto com o átomo de nitrogênio ao qual eles estão ligados, formam um grupo morfolino e a1 é um número de 1 a 10, preferivelmente 2 a 10, e as unidades de repetição são idênticas ou diferentes; A21 e A25 independentemente um do outro são hidrogênio, C1C4 alquila ou cicloexila, A22, A23 e A24 independentemente um do outro são C2-C10 alquileno, e X1, X2, X3, X4, X5, X6, X7 e X8 independentemente um do outro são um grupo da fórmula (a-2), em que A26 é hidrogênio, C1-C4 alquila, cicloexila ou um grupo da fórmula (a-1) como definido acima, e A27 tem um dos significados de A12; R1 e R2 independentemente um do outro são hidrogênio, C1-C4 alquila ou cicloexila; e R3 e R4 independentemente um do outro são C1-C4 alquila ou um grupo da fórmula (a-3) em que R0 tem um dos significados de R1 e R2.[0025] According to a preferred embodiment, A11 is C2-C10 alkylene, the radicals A12 independently of each other are hydrogen, C1-C4 alkyl or cyclohexyl, A13 and A14 independently of each other are hydrogen, C1C4 alkyl, cyclohexyl or a group of formula (a-1), or the radicals A13 and A14, together with the nitrogen atom to which they are attached, form a morpholino group and a1 is a number from 1 to 10, preferably 2 to 10, and the repeating units are identical or different; A21 and A25 independently of each other are hydrogen, C1C4 alkyl or cyclohexyl, A22, A23 and A24 independently of each other are C2-C10 alkylene, and X1, X2, X3, X4, X5, X6, X7 and X8 independently of each other are a group of formula (a-2), wherein A26 is hydrogen, C1-C4 alkyl, cyclohexyl or a group of formula (a-1) as defined above, and A27 has one of the meanings of A12; R1 and R2 independently of each other are hydrogen, C1-C4 alkyl or cyclohexyl; and R3 and R4 independently of each other are C1-C4 alkyl or a group of formula (a-3) where R0 has one of the meanings of R1 and R2.

[0026] De acordo com uma modalidade adicionalmente preferida o componente A) é um composto da fórmula (A-I-1), (A-I-2), (A-II-1) ou (A- III-1), com a1 sendo 2 a 10, com a1 sendo 2 a 10, em que X1, X2, X3, X4, X5, X6, X7 e X8 são o grupo [0026] According to an additional preferred embodiment, component A) is a compound of the formula (AI-1), (AI-2), (A-II-1) or (A-III-1), with a1 being 2 to 10, with a1 being 2 to 10, where X1, X2, X3, X4, X5, X6, X7 and X8 are the group

[0027] O tubo de polietileno pode compreender adicionalmente um componente C) que é um antioxidante fenólico, em particular, 1,3,5-tris(3,5- di-terc-butil-4-hidroxibenzil)-2,4,6-trimetilbenzeno (Irganox®1330), etileno bis[3,3-bis(3-terc-butil-4-hidroxifenil)butirato] (Hostanox®03) ou 1,3,5- tris(3,5-di-terc-butil-4-hidroxibenzil)-isocianurato (Irganox®3114).[0027] The polyethylene tube may additionally comprise a component C) which is a phenolic antioxidant, in particular, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4, 6-trimethylbenzene (Irganox®1330), ethylene bis[3,3-bis(3-tert-butyl-4-hydroxyphenyl)butyrate] (Hostanox®03) or 1,3,5-tris(3,5-di- tert-butyl-4-hydroxybenzyl)-isocyanurate (Irganox®3114).

[0028] A razão em peso de componente A) para componente C) é preferivelmente 1:10 a 10:1, em particular, 1:5 a 5:1.[0028] The weight ratio of component A) to component C) is preferably 1:10 to 10:1, in particular, 1:5 to 5:1.

[0029] O tubo de polietileno pode compreender adicionalmente um componente D) que é pelo menos um composto selecionado dentre o grupo que consiste de fosfitos, fosfonitos, hidroxilaminas, tocoferóis e acetatos de tocoferol. Um fosfito, por exemplo, tris(2,4-di-terc-butilfenil) fosfito, [3,3’,5,5’-tetra-terc.butil-1,1’bifenil-2,2’-di-il]-[3-(3-metil-4-hidroxi-5- terc.butil-fenil)-propil]-fosfito, [2,2’-etileno-bis-(4,6-di-terc.butil-fenil)-1,1’- di-il]-[1,6-dimetil-4-(5,7-di-terc.butil)-3H-1-benzofuran-2-ona)-fenil]-fosfito, [2,2’-etileno-bis-(4,6-di-terc.butil-fenil)-1,1’-di-il]-[1-metil-6-terc.butil-4- (5,7-di-terc.butil)-3H-1-benzofuran-2-ona)-fenil]-fosfito ou 6-[3-(3-terc-butil- 4-hidroxi-5-metilfenil)propoxi]-2,4,8,10-tetra- tercbutildibenzo[d,f][1,3,2]dioxafosfepina, é particularmente preferida.[0029] The polyethylene tube may additionally comprise a component D) which is at least one compound selected from the group consisting of phosphites, phosphonites, hydroxylamines, tocopherols and tocopherol acetates. A phosphite, for example, tris(2,4-di-tert-butylphenyl) phosphite, [3,3',5,5'-tetra-tert.butyl-1,1'biphenyl-2,2'-di- yl]-[3-(3-methyl-4-hydroxy-5-tert.butyl-phenyl)-propyl]-phosphite, [2,2'-ethylene-bis-(4,6-di-tert.butyl- phenyl)-1,1'-di-yl]-[1,6-dimethyl-4-(5,7-di-tert.butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite, [2,2'-ethylene-bis-(4,6-di-tert.butyl-phenyl)-1,1'-di-yl]-[1-methyl-6-tert.butyl-4- (5, 7-di-tert.butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite or 6-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propoxy]-2, 4,8,10-tetratert-butyldibenzo[d,f][1,3,2]dioxafosphepine, is particularly preferred.

[0030] A razão em peso de componente A) para componente D) é preferivelmente 1:10 a 10:1, em particular, 1:5 a 5:1.[0030] The weight ratio of component A) to component D) is preferably 1:10 to 10:1, in particular, 1:5 to 5:1.

[0031] De interesse é um tubo de polietileno que compreende os componentes A), B), C) e D). Os compostos de componentes A), B), C) e D) são conhecidos e estão essencialmente comercialmente disponíveis.[0031] Of interest is a polyethylene tube comprising components A), B), C) and D). Compounds of components A), B), C) and D) are known and are essentially commercially available.

[0032] O componente A) está preferivelmente presente no polietileno em uma quantidade de 0,01% a 2% em peso em relação ao peso do polietileno.[0032] Component A) is preferably present in the polyethylene in an amount of 0.01% to 2% by weight in relation to the weight of the polyethylene.

[0033] O componente B) está preferivelmente presente no polietileno em uma quantidade de 0,01% a 5% em peso em relação ao peso do polietileno.[0033] Component B) is preferably present in the polyethylene in an amount of 0.01% to 5% by weight in relation to the weight of the polyethylene.

[0034] O componente C) está preferivelmente presente no polietileno em uma quantidade de 0,1% a 5% em peso em relação ao peso do polietileno.[0034] Component C) is preferably present in polyethylene in an amount of 0.1% to 5% by weight in relation to the weight of the polyethylene.

[0035] O componente D) está preferivelmente presente no polietileno em uma quantidade de 0,1% a 5% em peso em relação ao peso do polietileno.[0035] Component D) is preferably present in the polyethylene in an amount of 0.1% to 5% by weight in relation to the weight of the polyethylene.

[0036] De acordo com uma modalidade preferida o tubo de polietileno pode compreender adicionalmente um pigmento, preferivelmente um pigmento azul.[0036] According to a preferred embodiment, the polyethylene tube may additionally comprise a pigment, preferably a blue pigment.

[0037] O polietileno do tubo é preferivelmente selecionado dentre HD-PE, MD-PE, LD-PE, LLD-PE, PE metaloceno, PE-X, mistura de PE, PE reciclado, PE bimodal, PE-RT, PE 32, PE 40, PE 63, PE 80, PE 100, PE 112, PE 125, PE 100 RC, PE 100 RT e PE 100 RD, em particular, de polietileno de alta densidade (HD-PE), polietileno de média densidade (MD-PE), polietileno de baixa densidade (LD-PE), polietileno de baixa densidade linear (LLD-PE), polietileno metaloceno, polietileno reticulado (PE-X), polietileno reciclado, polietileno bimodal e misturas de polietilenos.[0037] The polyethylene of the tube is preferably selected from HD-PE, MD-PE, LD-PE, LLD-PE, metallocene PE, PE-X, PE blend, recycled PE, bimodal PE, PE-RT, PE 32 , PE 40, PE 63, PE 80, PE 100, PE 112, PE 125, PE 100 RC, PE 100 RT and PE 100 RD, in particular, high-density polyethylene (HD-PE), medium-density polyethylene ( MD-PE), low-density polyethylene (LD-PE), linear low-density polyethylene (LLD-PE), metallocene polyethylene, cross-linked polyethylene (PE-X), recycled polyethylene, bimodal polyethylene and polyethylene mixtures.

[0038] Um tubo de polietileno particularmente preferido compreende os componentes (A), (B), (C) e (D), em que o componente (A) é com a1 sendo 2 a 10, componente (B) é uma hidrotalcita natural ou sintética, componente (C) é 1,3,5-tris(3,5-di-terc-butil-4-hidroxibenzil)- 2,4,6-trimetilbenzeno, e componente (D) é tris[2,4-di-terc-butilfenil]fosfito.[0038] A particularly preferred polyethylene tube comprises components (A), (B), (C) and (D), wherein component (A) is with a1 being 2 to 10, component (B) is a natural or synthetic hydrotalcite, component (C) is 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)- 2,4, 6-trimethylbenzene, and component (D) is tris[2,4-di-tert-butylphenyl]phosphite.

[0039] O polietileno do tubo de acordo com a presente invenção pode compreender adicionalmente um ou mais aditivos convencionais tais como:[0039] The polyethylene of the tube according to the present invention may additionally comprise one or more conventional additives such as:

1. Antioxidantes1. Antioxidants

[0040] 1.1. Monofenóis alquilados, por exemplo, 2,6-di-terc-butil-4- metilfenol, 2-terc-butil-4,6-dimetilfenol, 2,6-di-terc-butil-4-etilfenol, 2,6-di- terc-butil-4-n-butilfenol, 2,6-di-terc-butil-4-isobutilfenol, 2,6-diciclopentil-4- metilfenol, 2-(α-metilciclohexil)-4,6-dimetilfenol, 2,6-dioctadecil-4- metilfenol, 2,4,6-triciclohexilfenol, 2,6-di-terc-butil-4-metoximetilfenol, nonilfenóis que são lineares ou ramificados nas cadeias laterais, por exemplo, 2,6-di-nonil-4-metilfenol, 2,4-dimetil-6-(1’-metilundec-1’-il)fenol, 2,4- dimetil-6-(1’-metilheptadec-1’-il)fenol, 2,4-dimetil-6-(1’-metilpentadec-1’- il)fenol, 2,4-dimetil-6-(1’-metiltridec-1’-il)fenol e misturas dos mesmos.[0040] 1.1. Alkylated monophenols, e.g. 2,6-di-tert-butyl-4-methylphenol, 2-tert-butyl-4,6-dimethylphenol, 2,6-di-tert-butyl-4-ethylphenol, 2,6- di-tert-butyl-4-n-butylphenol, 2,6-di-tert-butyl-4-isobutylphenol, 2,6-dicyclopentyl-4-methylphenol, 2-(α-methylcyclohexyl)-4,6-dimethylphenol, 2,6-dioctadecyl-4-methylphenol, 2,4,6-tricyclohexylphenol, 2,6-di-tert-butyl-4-methoxymethylphenol, nonylphenols that are linear or branched in the side chains, e.g. 2,6-di -nonyl-4-methylphenol, 2,4-dimethyl-6-(1'-methylundec-1'-yl)phenol, 2,4-dimethyl-6-(1'-methylheptadec-1'-yl)phenol, 2 ,4-dimethyl-6-(1'-methylpentadec-1'-yl)phenol, 2,4-dimethyl-6-(1'-methyltridec-1'-yl)phenol and mixtures thereof.

[0041] 1.2. Alquiltiometilfenóis, por exemplo, 2,4-dioctiltiometil-6- terc-butilfenol, 2,4-dioctiltiometil-6-metilfenol, 2,4-dioctiltiometil-6-etilfenol, 2,6-di-dodeciltiometil-4-nonilfenol.[0041] 1.2. Alkylthiomethylphenols, for example, 2,4-dioctylthiomethyl-6-tert-butylphenol, 2,4-dioctylthiomethyl-6-methylphenol, 2,4-dioctylthiomethyl-6-ethylphenol, 2,6-didodecylthiomethyl-4-nonylphenol.

[0042] 1.3. Hidroquinonas e hidroquinonas alquiladas, por exemplo, 2,6-di-terc-butil-4-metoxifenol, 2,5-di-terc-butilhidroquinona, 2,5-di-terc- amilhidroquinona, 2,6-difenil-4-octadeciloxifenol, 2,6-di-terc- butilhidroquinona, 2,5-di-terc-butil-4-hidroxianisol, 3,5-di-terc-butil-4- hidroxianisol, estearato de 3,5-di-terc-butil-4-hidroxifenila, adipato de bis(3,5-di-terc-butil-4-hidroxifenil).[0042] 1.3. Hydroquinones and alkylated hydroquinones, for example, 2,6-di-tert-butyl-4-methoxyphenol, 2,5-di-tert-butylhydroquinone, 2,5-di-tert-amylhydroquinone, 2,6-diphenyl-4- octadecyloxyphenol, 2,6-di-tert-butylhydroquinone, 2,5-di-tert-butyl-4-hydroxyanisole, 3,5-di-tert-butyl-4-hydroxyanisole, 3,5-di-tert-stearate butyl-4-hydroxyphenyl, bis(3,5-di-tert-butyl-4-hydroxyphenyl) adipate.

[0043] 1.4. Tocoferóis, por exemplo, α-tocoferol, β-tocoferol, y- tocoferol, δ-tocoferol e misturas dos mesmos (vitamina E).[0043] 1.4. Tocopherols, for example, α-tocopherol, β-tocopherol, δ-tocopherol, δ-tocopherol and mixtures thereof (vitamin E).

[0044] 1.5. Tiodifenil éteres hidroxilados, por exemplo, 2,2’-tiobis(6- terc-butil-4-metilfenol), 2,2’-tiobis(4-octilfenol), 4,4’-tiobis(6-terc-butil-3- metilfenol), 4,4’-tiobis(6-terc-butil-2-metilfenol), 4,4’-tiobis(3,6-di-sec- amilfenol), 4,4’-bis(2,6-dimetil-4-hidroxifenil)dissulfeto.[0044] 1.5. Hydroxylated thiodiphenyl ethers, e.g. 2,2'-thiobis(6-tert-butyl-4-methylphenol), 2,2'-thiobis(4-octylphenol), 4,4'-thiobis(6-tert-butyl- 3- methylphenol), 4,4'-thiobis(6-tert-butyl-2-methylphenol), 4,4'-thiobis(3,6-di-sec-amylphenol), 4,4'-bis(2, 6-dimethyl-4-hydroxyphenyl)disulfide.

[0045] 1.6. Alquilidenobisfenóis, por exemplo, 2,2’-metilenobis(6- terc-butil-4-metilfenol), 2,2’-metilenobis(6-terc-butil-4-etilfenol), 2,2’- metilenobis[4-metil-6-(α-metilciclohexil)fenol], 2,2’-metilenobis(4-metil-6- ciclohexilfenol), 2,2’-metilenobis(6-nonil-4-metilfenol), 2,2’-metilenobis(4,6- di-terc-butilfenol), 2,2’-etilidenobis(4,6-di-terc-butilfenol), 2,2’- etilidenobis(6-terc-butil-4-isobutilfenol), 2,2’-metilenobis[6-(α-metilbenzil)- 4-nonilfenol], 2,2’-metilenobis[6-(α,α-dimetilbenzil)-4-nonilfenol], 4,4’- metilenobis(2,6-di-terc-butilfenol), 4,4’-metilenobis(6-terc-butil-2- metilfenol), 1,1-bis(5-terc-butil-4-hidroxi-2-metilfenil)butano, 2,6-bis(3-terc- butil-5-metil-2-hidroxibenzil)-4-metilfenol, 1,1,3-tris(5-terc-butil-4-hidroxi-2- metilfenil)butano, 1,1-bis(5-terc-butil-4-hidroxi-2-metil-fenil)-3-n- dodecilmercaptobutano, etileno glicol bis[3,3-bis(3’-terc-butil-4’- hidroxifenil)butirato], bis(3-terc-butil-4-hidroxi-5-metil-fenil)diciclopenta- dieno, bis[2-(3’-terc-butil-2’-hidroxi-5’-metilbenzil)-6-terc-butil-4- metilfenil]tereftalato, 1,1-bis-(3,5-dimetil-2-hidroxifenil)butano, 2,2-bis(3,5- di-terc-butil-4-hidroxifenil)propano, 2,2-bis(5-terc-butil-4-hidroxi2- metilfenil)-4-n-dodecilmercaptobutano, 1,1,5,5-tetra-(5-terc-butil-4-hidroxi-2- metilfenil)pentano.[0045] 1.6. Alkylidenebisphenols, e.g. 2,2'-methylenebis(6-tert-butyl-4-methylphenol), 2,2'-methylenebis(6-tert-butyl-4-ethylphenol), 2,2'-methylenebis[4- methyl-6-(α-methylcyclohexyl)phenol], 2,2'-methylenebis(4-methyl-6-cyclohexylphenol), 2,2'-methylenebis(6-nonyl-4-methylphenol), 2,2'-methylenebis (4,6-di-tert-butylphenol), 2,2'-ethylidenebis(4,6-di-tert-butylphenol), 2,2'-ethylidenebis(6-tert-butyl-4-isobutylphenol), 2, 2'-methylenebis[6-(α-methylbenzyl)- 4-nonylphenol], 2,2'-methylenebis[6-(α,α-dimethylbenzyl)-4-nonylphenol], 4,4'- methylenebis(2,6 -di-tert-butylphenol), 4,4'-methylenebis(6-tert-butyl-2-methylphenol), 1,1-bis(5-tert-butyl-4-hydroxy-2-methylphenyl)butane, 2, 6-bis(3-tert-butyl-5-methyl-2-hydroxybenzyl)-4-methylphenol, 1,1,3-tris(5-tert-butyl-4-hydroxy-2-methylphenyl)butane, 1,1 -bis(5-tert-butyl-4-hydroxy-2-methyl-phenyl)-3-n-dodecylmercaptobutane, ethylene glycol bis[3,3-bis(3'-tert-butyl-4'-hydroxyphenyl)butyrate] , bis(3-tert-butyl-4-hydroxy-5-methyl-phenyl)dicyclopentadiene, bis[2-(3'-tert-butyl-2'-hydroxy-5'-methylbenzyl)-6-tert- butyl-4-methylphenyl]terephthalate, 1,1-bis-(3,5-dimethyl-2-hydroxyphenyl)butane, 2,2-bis(3,5-di-tert-butyl-4-hydroxyphenyl)propane, 2 ,2-bis(5-tert-butyl-4-hydroxy2-methylphenyl)-4-n-dodecylmercaptobutane, 1,1,5,5-tetra-(5-tert-butyl-4-hydroxy-2-methylphenyl)pentane .

[0046] 1.7. Compostos O-, N- e S-benzila, por exemplo, 3,5,3’,5’- tetra-terc-butil-4,4’-dihidroxidibenzil éter, octadecil-4-hidroxi-3,5- dimetilbenzilmercaptoacetato, tridecil-4-hidroxi-3,5-di-terc- butilbenzilmercaptoacetato, tris(3,5-di-terc-butil-4-hidroxibenzil)amina, bis(4-terc-butil-3-hidroxi-2,6-dimetilbenzil)ditiotereftalato, bis(3,5-di-terc- butil-4-hidroxibenzil)sulfeto, isooctil-3,5-di-terc-butil-4- hidroxibenzilmercaptoacetato.[0046] 1.7. O-, N- and S-benzyl compounds, for example, 3,5,3',5'-tetra-tert-butyl-4,4'-dihydroxydibenzyl ether, octadecyl-4-hydroxy-3,5-dimethylbenzylmercaptoacetate, tridecyl-4-hydroxy-3,5-di-tert-butylbenzylmercaptoacetate, tris(3,5-di-tert-butyl-4-hydroxybenzyl)amine, bis(4-tert-butyl-3-hydroxy-2,6- dimethylbenzyl)dithioterephthalate, bis(3,5-di-tert-butyl-4-hydroxybenzyl)sulfide, isooctyl-3,5-di-tert-butyl-4-hydroxybenzylmercaptoacetate.

[0047] 1.8. Malonatos hidroxibenzilados, por exemplo, dioctadecil- 2,2-bis(3,5-di-terc-butil-2-hidroxibenzil)malonato, di-octadecil-2-(3-terc- butil-4-hidroxi-5-metilbenzil)malonato, di-dodecilmercaptoetil-2,2-bis (3,5- di-terc-butil-4-hidroxibenzil)malonato, bis[4-(1,1,3,3-tetrametilbutil)fenil]- 2,2-bis(3,5-di-terc-butil-4-hidroxibenzil)malonato.[0047] 1.8. Hydroxybenzylated malonates, e.g. dioctadecyl-2,2-bis(3,5-di-tert-butyl-2-hydroxybenzyl)malonate, di-octadecyl-2-(3-tert-butyl-4-hydroxy-5-methylbenzyl )malonate, di-dodecylmercaptoethyl-2,2-bis(3,5-di-tert-butyl-4-hydroxybenzyl)malonate, bis[4-(1,1,3,3-tetramethylbutyl)phenyl]- 2,2 -bis(3,5-di-tert-butyl-4-hydroxybenzyl)malonate.

[0048] 1.9. Compostos hidroxibenzil aromáticos, por exemplo, 1,3,5- tris(3,5-di-terc-butil-4-hidroxibenzil)-2,4,6-trimetilbenzeno, 1,4-bis(3,5-di- terc-butil-4-hidroxibenzil)-2,3,5,6-tetrametilbenzeno, 2,4,6-tris(3,5-di-terc- butil-4-hidroxibenzil)fenol.[0048] 1.9. Aromatic hydroxybenzyl compounds, for example, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene, 1,4-bis(3,5-di- tert-butyl-4-hydroxybenzyl)-2,3,5,6-tetramethylbenzene, 2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)phenol.

[0049] 1.10. Compostos de triazina, por exemplo, 2,4- bis(octilmercapto)-6-(3,5-di-terc-butil-4-hidroxianilino)-1,3,5-triazina, 2- octilmercapto-4,6-bis(3,5-di-terc-butil-4-hidroxianilino)-1,3,5-triazina, 2- octilmercapto-4,6-bis(3,5-di-terc-butil-4-hidroxifenoxi)-1,3,5-triazina, 2,4,6- tris(3,5-di-terc-butil-4-hidroxifenoxi)-1,2,3-triazina, 1,3,5-tris(3,5-di-terc- butil-4-hidroxibenzil)isocianurato, 1,3,5-tris(4-terc-butil-3-hidroxi-2,6- dimetilbenzil)isocianurato, 2,4,6-tris(3,5-di-terc-butil-4-hidroxifeniletil)- 1,3,5-triazina, 1,3,5-tris(3,5-di-terc-butil-4-hidroxifenilpropionil)-hexahidro- 1,3,5-triazina, 1,3,5-tris(3,5-diciclohexil-4-hidroxibenzil)isocianurato.[0049] 1.10. Triazine compounds, e.g. 2,4-bis(octylmercapto)-6-(3,5-di-tert-butyl-4-hydroxyanilino)-1,3,5-triazine, 2-octylmercapto-4,6- bis(3,5-di-tert-butyl-4-hydroxyanilino)-1,3,5-triazine, 2-octylmercapto-4,6-bis(3,5-di-tert-butyl-4-hydroxyphenoxy)- 1,3,5-triazine, 2,4,6-tris(3,5-di-tert-butyl-4-hydroxyphenoxy)-1,2,3-triazine, 1,3,5-tris(3,5 -di-tert-butyl-4-hydroxybenzyl)isocyanurate, 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanurate, 2,4,6-tris(3,5 -di-tert-butyl-4-hydroxyphenylethyl)- 1,3,5-triazine, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)-hexahydro- 1,3,5 -triazine, 1,3,5-tris(3,5-dicyclohexyl-4-hydroxybenzyl)isocyanurate.

[0050] 1.11. Benzilfosfonatos, por exemplo, dimetil-2,5-di-terc-butil- 4-hidroxibenzilfosfonato, dietil-3,5-di-terc-butil-4-hidroxibenzilfosfonato, dioctadecil3,5-di-terc-butil-4-hidroxibenzilfosfonato, dioctadecil-5-terc-butil- 4-hidroxi-3-metilbenzilfosfonato, o sal de cálcio do monoetil éster de ácido 3,5-di-terc-butil-4-hidroxibenzilfosfônico.[0050] 1.11. Benzylphosphonates, e.g. dimethyl-2,5-di-tert-butyl-4-hydroxybenzylphosphonate, diethyl-3,5-di-tert-butyl-4-hydroxybenzylphosphonate, dioctadecyl3,5-di-tert-butyl-4-hydroxybenzylphosphonate , dioctadecyl-5-tert-butyl-4-hydroxy-3-methylbenzylphosphonate, the calcium salt of 3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid monoethyl ester.

[0051] 1.12. Acilaminofenóis, por exemplo, 4-hidroxilauranilida, 4- hidroxistearanilida, octil N-(3,5-di-terc-butil-4-hidroxifenil)carbamato.[0051] 1.12. Acylaminophenols, e.g. 4-hydroxylauranilide, 4-hydroxystearanilide, octyl N-(3,5-di-tert-butyl-4-hydroxyphenyl)carbamate.

[0052] 1.13. Ésteres de ácido β-(3,5-di-terc-butil-4- hidroxifenil)propiônico com álcoois mono ou polihídricos, por exemplo, com metanol, etanol, n-octanol, i-octanol, octadecanol, 1,6-hexanodiol, 1,9- nonanodiol, etileno glicol, 1,2-propanodiol, neopentil glicol, tiodietileno glicol, dietileno glicol, trietileno glicol, pentaeritritol, tris(hidroxietil)isocianurato, N,N’-bis(hidroxietil)oxamida, 3-tiaundecanol, 3- tiapentadecanol, trimetilhexanodiol, trimetilolpropano, 4-hidroximetil-1- fosfa-2,6,7-trioxabiciclo[2.2.2]octano.[0052] 1.13. Esters of β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid with mono- or polyhydric alcohols, e.g. with methanol, ethanol, n-octanol, i-octanol, octadecanol, 1,6-hexanediol , 1,9-nonanediol, ethylene glycol, 1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N'-bis(hydroxyethyl)oxamide, 3-thiaundecanol , 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2.2.2]octane.

[0053] 1.14. Ésteres de ácido β-(5-terc-butil-4-hidroxi-3- metilfenil)propiônico com álcoois mono ou polihídricos, por exemplo, com metanol, etanol, n-octanol, i-octanol, octadecanol, 1,6-hexanodiol, 1,9- nonanodiol, etileno glicol, 1,2-propanodiol, neopentil glicol, tiodietileno glicol, dietileno glicol, trietileno glicol, pentaeritritol, tris(hidroxietil)isocianurato, N,N’-bis(hidroxietil)oxamida, 3-tiaundecanol, 3- tiapentadecanol, trimetilhexanodiol, trimetilolpropano, 4-hidroximetil-1- fosfa-2,6,7-trioxabiciclo[2.2.2]octano; 3,9-bis[2-{3-(3-terc-butil-4-hidroxi-5- metilfenil)propioniloxi}-1,1-dimetiletil]-2,4,8,10-tetraoxaspiro[5.5]undecano.[0053] 1.14. Esters of β-(5-tert-butyl-4-hydroxy-3-methylphenyl)propionic acid with mono- or polyhydric alcohols, e.g. with methanol, ethanol, n-octanol, i-octanol, octadecanol, 1,6-hexanediol , 1,9-nonanediol, ethylene glycol, 1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N'-bis(hydroxyethyl)oxamide, 3-thiaundecanol , 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2.2.2]octane; 3,9-bis[2-{3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy}-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane.

[0054] 1.15. Ésteres de ácido β-(3,5-diciclohexil-4- hidroxifenil)propiônico com álcoois mono ou polihídricos, por exemplo, com metanol, etanol, octanol, octadecanol, 1,6-hexanodiol, 1,9-nonanodiol, etileno glicol, 1,2-propanodiol, neopentil glicol, tiodietileno glicol, dietileno glicol, trietileno glicol, pentaeritritol, tris(hidroxietil)isocianurato, N,N’- bis(hidroxietil)oxamida, 3-tiaundecanol, 3-tiapentadecanol, trimetilhexanodiol, trimetilolpropano, 4-hidroximetil-1-fosfa-2,6,7- trioxabiciclo[2.2.2]octano.[0054] 1.15. Esters of β-(3,5-dicyclohexyl-4-hydroxyphenyl)propionic acid with mono- or polyhydric alcohols, for example, with methanol, ethanol, octanol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene glycol, 1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N'-bis(hydroxyethyl)oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4 -hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2.2.2]octane.

[0055] 1.16. Ésteres de ácido 3,5-di-terc-butil-4-hidroxifenil acético com álcoois mono ou polihídricos, por exemplo, com metanol, etanol, octanol, octadecanol, 1,6-hexanodiol, 1,9-nonanodiol, etileno glicol, 1,2- propanodiol, neopentil glicol, tiodietileno glicol, dietileno glicol, trietileno glicol, pentaeritritol, tris(hidroxietil)isocianurato, N,N’-bis(hidroxietil)ox- amida, 3-tiaundecanol, 3-tiapentadecanol, trimetilhexanodiol, trimetilolpropano, 4-hidroximetil-1-fosfa-2,6,7-trioxabiciclo[2.2.2]octano.[0055] 1.16. Esters of 3,5-di-tert-butyl-4-hydroxyphenyl acetic acid with mono- or polyhydric alcohols, for example, with methanol, ethanol, octanol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene glycol, 1,2- propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N'-bis(hydroxyethyl)oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane , 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2.2.2]octane.

[0056] 1.17. Amidas de ácido β-(3,5-di-terc-butil-4- hidroxifenil)propiônico, por exemplo, hidroxifenilpropionil)hexametilenodiamida, hidroxifenilpropionil)trimetilenodiamida, hidroxifenilpropionil)hidrazida, N,N’-bis[2-(3-[3,5-di-terc-butil-4- hidroxifenil]propioniloxi)etil]oxamida (Naugard®XL-1, fornecido por Uniroyal).[0056] 1.17. [ 3,5-di-tert-butyl-4-hydroxyphenyl]propionyloxy)ethyl]oxamide (Naugard®XL-1, supplied by Uniroyal).

[0057] 1.18. Antioxidantes amínicos, por exemplo, N,N’-di-isopropil- p-fenilenodiamina, N,N’-di-sec-butil-p-fenilenodiamina, N,N’-bis(1,4- dimetilpentil)-p-fenilenodiamina, N,N’-bis(1-etil-3-metilpentil)-p- fenilenodiamina, N,N’-bis(1-metilheptil)-p-fenilenodiamina, N,N’- diciclohexil-p-fenilenodiamina, N,N’-difenil-p-fenilenodiamina, N,N’-bis(2- naftil)-p-fenilenodiamina, N-isopropil-N’-fenil-p-fenilenodiamina, N-(1,3- dimetilbutil)-N’-fenil-p-fenilenodiamina, N-(1-metilheptil)-N’-fenil-p- fenilenodiamina, N-ciclohexil-N’-fenil-p-fenilenodiamina, 4-(p- toluenosulfamoil)difenilamina, N,N’-dimetil-N,N’-di-sec-butil-p- fenilenodiamina, difenilamina, N-alildifenilamina, 4-isopropoxidifenilamina, N-fenil-1-naftilamina, N-(4-terc-octilfenil)-1-naftilamina, N-fenil-2- naftilamina, difenilamina octilada, por exemplo, p,p’-di-terc- octildifenilamina, 4-n-butilaminofenol, 4-butirilaminofenol, 4- nonanoilaminofenol, 4-dodecanoilaminofenol, 4-octadecanoilaminofenol, bis(4-metoxifenil)amina, 2,6-di-terc-butil-4-dimetilaminometilfenol, 2,4’- diaminodifenilmetano, 4,4’-diaminodifenilmetano, N,N,N’,N’-tetrametil-4,4’- diaminodifenilmetano, 1,2-bis[(2-metilfenil)amino]etano, 1,2-bis(fenil- amino)propano, (o-tolil)biguanida, bis[4-(1’,3’-dimetilbutil)fenil]amina, N- fenil-1-naftilamina terc-octilada, uma mistura de terc-butil/terc-octildifenil- aminas mono e dialquiladas, uma mistura de nonildifenilaminas mono e dialquiladas, uma mistura de dodecildifenilaminas mono e dialquiladas, uma mistura de isopropil/isohexildifenilaminas mono e dialquiladas, uma mistura de terc-butildifenilaminas mono e dialquiladas, 2,3-dihidro-3,3-dimetil-4H- 1,4-benzotiazina, fenotiazina, uma mistura de terc-butil/terc-octilfenotiazinas mono e dialquiladas, uma mistura de terc-octil-fenotiazinas mono e dialquiladas, N-alilfenotiazina, N,N,N’,N’-tetrafenil-1,4-diaminobut-2-eno.[0057] 1.18. Aminic antioxidants, e.g. N,N'-diisopropyl-p-phenylenediamine, N,N'-di-sec-butyl-p-phenylenediamine, N,N'-bis(1,4-dimethylpentyl)-p- phenylenediamine, N,N'-bis(1-ethyl-3-methylpentyl)-p-phenylenediamine, N,N'-bis(1-methylheptyl)-p-phenylenediamine, N,N'-dicyclohexyl-p-phenylenediamine, N ,N'-diphenyl-p-phenylenediamine, N,N'-bis(2-naphthyl)-p-phenylenediamine, N-isopropyl-N'-phenyl-p-phenylenediamine, N-(1,3-dimethylbutyl)-N '-phenyl-p-phenylenediamine, N-(1-methylheptyl)-N'-phenyl-p-phenylenediamine, N-cyclohexyl-N'-phenyl-p-phenylenediamine, 4-(p-toluenesulfamoyl)diphenylamine, N,N '-dimethyl-N,N'-di-sec-butyl-p-phenylenediamine, diphenylamine, N-allyldiphenylamine, 4-isopropoxydiphenylamine, N-phenyl-1-naphthylamine, N-(4-tert-octylphenyl)-1-naphthylamine , N-phenyl-2-naphthylamine, octylated diphenylamine, e.g. p,p'-di-tert-octyldiphenylamine, 4-n-butylaminophenol, 4-butyrylaminophenol, 4-nonanoylaminophenol, 4-dodecanoylaminophenol, 4-octadecanoylaminophenol, bis( 4-methoxyphenyl)amine, 2,6-di-tert-butyl-4-dimethylaminomethylphenol, 2,4'-diaminodiphenylmethane, 4,4'-diaminodiphenylmethane, N,N,N',N'-tetramethyl-4,4' - diaminodiphenylmethane, 1,2-bis[(2-methylphenyl)amino]ethane, 1,2-bis(phenylamino)propane, (o-tolyl)biguanide, bis[4-(1',3'-dimethylbutyl) phenyl]amine, tert-octylated N-phenyl-1-naphthylamine, a mixture of mono- and dialkylated tert-butyl/tert-octyldiphenylamines, a mixture of mono- and dialkyllated nonyldiphenylamines, a mixture of mono- and dialkylated dodecyldiphenylamines, a mixture of mono and dialkyl isopropyl/isohexyldiphenylamines, a mixture of mono and dialkyl tert-butyldiphenylamines, 2,3-dihydro-3,3-dimethyl-4H-1,4-benzothiazine, phenothiazine, a mixture of mono tert-butyl/tert-octylphenothiazines and dialkylated, a mixture of mono- and dialkyllated tert-octyl-phenothiazines, N-allylphenothiazine, N,N,N',N'-tetraphenyl-1,4-diaminobut-2-ene.

2. Absorvedores de UV e estabilizadores de luz2. UV absorbers and light stabilizers

[0058] 2.1. 2-(2’-Hidroxifenil)benzotriazóis, por exemplo, 2-(2’- hidroxi-5’-metilfenil)-benzotriazol, 2-(3’,5’-di-terc-butil-2’- hidroxifenil)benzotriazol, 2-(5’-terc-butil-2’-hidroxifenil)benzotriazol, 2-(2’- hidroxi-5’-(1,1,3,3-tetrametilbutil)fenil)benzotriazol, 2-(3’,5’-di-terc-butil-2’- hidroxifenil)-5-cloro-benzotriazol, 2-(3’-terc-butil-2’-hidroxi-5’-metilfenil)-5- cloro-benzotriazol, 2-(3’-sec-butil-5’-terc-butil-2’-hidroxifenil)benzotriazol, 2-(2’-hidroxi-4’-octiloxifenil)benzotriazol, 2-(3’,5’-di-terc-amil-2’- hidroxifenil)benzotriazol, 2-(3’,5’-bis-(α,α-dimetilbenzil)-2’- hidroxifenil)benzotriazol, 2-(3’-terc-butil-2’-hidroxi-5’-(2- octiloxicarboniletil)fenil)-5-cloro-benzotriazol, 2-(3’-terc-butil-5’-[2-(2- etilhexiloxi)-carboniletil]-2’-hidroxifenil)-5-cloro-benzotriazol, 2-(3’-terc- butil-2’-hidroxi-5’-(2-metoxicarboniletil)fenil)-5-cloro-benzotriazol, 2-(3’- terc-butil-2’-hidroxi-5’-(2-metoxicarboniletil)fenil)benzotriazol, 2-(3’-terc- butil-2’-hidroxi-5’-(2-octiloxicarboniletil)fenil)benzotriazol, 2-(3’-terc-butil- 5’-[2-(2-etilhexiloxi)carboniletil]-2’-hidroxifenil)benzotriazol, 2-(3’-dodecil- 2’-hidroxi-5’-metilfenil)benzotriazol, 2-(3’-terc-butil-2’-hidroxi-5’-(2- isooctiloxicarboniletil)fenilbenzotriazol, 2,2’-metileno-bis[4-(1,1,3,3- tetrametilbutil)-6-benzotriazol-2-ilfenol]; o produto da transesterificação de 2- [3’-terc-butil-5’-(2-metoxicarboniletil)-2’-hidroxifenil]-2H-benzotriazol com polietileno glicol 300; [R—CH2CH—COO-CH2CH2^- , em que R = 3’-terc- butil-4’-hidroxi-5’-2H-benzotriazol-2-ilfenila, 2-[2’-hidroxi-3’-(α,α- dimetilbenzil)-5’-(1,1,3,3-tetrametilbutil)-fenil]benzotriazol; 2-[2’-hidroxi-3’- (1,1,3,3-tetrametilbutil)-5’-(α,α-dimetilbenzil)-fenil]benzotriazol.[0058] 2.1. 2-(2'-Hydroxyphenyl)benzotriazoles, e.g. 2-(2'-hydroxy-5'-methylphenyl)-benzotriazole, 2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)benzotriazole , 2-(5'-tert-butyl-2'-hydroxyphenyl)benzotriazole, 2-(2'-hydroxy-5'-(1,1,3,3-tetramethylbutyl)phenyl)benzotriazole, 2-(3', 5'-di-tert-butyl-2'-hydroxyphenyl)-5-chloro-benzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-methylphenyl)-5-chloro-benzotriazole, 2- (3'-sec-butyl-5'-tert-butyl-2'-hydroxyphenyl)benzotriazole, 2-(2'-hydroxy-4'-octyloxyphenyl)benzotriazole, 2-(3',5'-di-tert- amyl-2'-hydroxyphenyl)benzotriazole, 2-(3',5'-bis-(α,α-dimethylbenzyl)-2'-hydroxyphenyl)benzotriazole, 2-(3'-tert-butyl-2'-hydroxy- 5'-(2-octyloxycarbonylethyl)phenyl)-5-chloro-benzotriazole, 2-(3'-tert-butyl-5'-[2-(2-ethylhexyloxy)-carbonylethyl]-2'-hydroxyphenyl)-5- chloro-benzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl)phenyl)-5-chloro-benzotriazole, 2-(3'-tert-butyl-2'-hydroxy -5'-(2-methoxycarbonylethyl)phenyl)benzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)benzotriazole, 2-(3'-tert-butyl- 5'-[2-(2-ethylhexyloxy)carbonylethyl]-2'-hydroxyphenyl)benzotriazole, 2-(3'-dodecyl-2'-hydroxy-5'-methylphenyl)benzotriazole, 2-(3'-tert-butyl -2'-hydroxy-5'-(2-isooctyloxycarbonylethyl)phenylbenzotriazole, 2,2'-methylene-bis[4-(1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-ylphenol]; the transesterification product of 2-[3'-tert-butyl-5'-(2-methoxycarbonylethyl)-2'-hydroxyphenyl]-2H-benzotriazole with polyethylene glycol 300; [R—CH2CH—COO-CH2CH2^- , where R = 3'-tert-butyl-4'-hydroxy-5'-2H-benzotriazol-2-ylphenyl, 2-[2'-hydroxy-3'-( α,α-dimethylbenzyl)-5'-(1,1,3,3-tetramethylbutyl)-phenyl]benzotriazole; 2-[2'-hydroxy-3'-(1,1,3,3-tetramethylbutyl)-5'-(α,α-dimethylbenzyl)-phenyl]benzotriazole.

[0059] 2.2. 2-Hidroxibenzofenonas, por exemplo, os derivados de 4- hidróxi, 4-metóxi, 4-octilóxi, 4-decilóxi, 4-dodecilóxi, 4-benzilóxi, 4,2’,4’- trihidróxi e 2’-hidroxi-4,4’-dimetóxi.[0059] 2.2. 2-Hydroxybenzophenones, e.g. the derivatives of 4-hydroxy, 4-methoxy, 4-octyloxy, 4-decyloxy, 4-dodecyloxy, 4-benzyloxy, 4,2',4'-trihydroxy and 2'-hydroxy-4 ,4'-dimethoxy.

[0060] 2.3. Ésteres de ácidos benzóicos substituídos e não substituídos, por exemplo, salicilato de 4-terc-butil-fenila, salicilato de fenila, salicilato de octilfenila, dibenzoil resorcinol, bis(4-terc-butilben- zoil)resorcinol, benzoil resorcinol, 2,4-di-terc-butilfenil 3,5-di-terc-butil-4- hidroxibenzoato, hexadecil 3,5-di-terc-butil-4-hidroxibenzoato, octadecil 3,5- di-terc-butil-4-hidroxibenzoato, 2-metil-4,6-di-terc-butilfenil 3,5-di-terc-butil- 4-hidroxibenzoato.[0060] 2.3. Esters of substituted and unsubstituted benzoic acids, for example, 4-tert-butyl-phenyl salicylate, phenyl salicylate, octylphenyl salicylate, dibenzoyl resorcinol, bis(4-tert-butylbenzoyl)resorcinol, benzoyl resorcinol, 2, 4-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate, hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate, octadecyl 3,5-di-tert-butyl-4-hydroxybenzoate , 2-methyl-4,6-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate.

[0061] 2.4. Acrilatos, por exemplo, etil α-ciano-β,β-difenilacrilato, isooctil α-ciano-β,β-difenilacrilato, metil α-carbometoxicinamato, metil α- ciano-β-metil-p-metoxicinamato, butil α-ciano-β-metil-p-metoxi-cinamato, metil α-carbometoxi-p-metoxicinamato, N-(β-carbometoxi-β-cianovinil)-2- metilindolina, neopentil tetra(α-ciano-β,β-difenilacrilato).[0061] 2.4. Acrylates, e.g. ethyl α-cyano-β,β-diphenylacrylate, isooctyl α-cyano-β,β-diphenylacrylate, methyl α-carbomethoxycinnamate, methyl α-cyano-β-methyl-p-methoxycinnamate, butyl α-cyano- β-methyl-p-methoxy-cinnamate, methyl α-carbomethoxy-p-methoxycinnamate, N-(β-carbomethoxy-β-cyanovinyl)-2-methylindoline, neopentyl tetra(α-cyano-β,β-diphenylacrylate).

[0062] 2.5. Aminas estereoquimicamente impedidas, por exemplo, 1,6-Hexanodiamina N, N’-bis(1-propiloxi-2,2,6,6-tetrametil-4-piperidinil)- N, N’-bis-2-[4,5-bis-(N-n-butil-N’-1-propiloxi-2,2,6,6-tetrametil-4-piperidinil)- 1,3,5-triazina], 1,6-Hexanodiamina N, N’-bis(2,2,6,6-tetrametil-4-piperidinil)- N, N’-bis-2-[4,5-bis-(N-n-butil-N’-2,2,6,6-tetrametil-4-piperidinil)-1,3,5- triazina], éster de bis(1-undeciloxi-2,2,6,6-tetrametil-4-piperidil) de ácido carbônico, bis(2,2,6,6-tetrametil-4-piperidil)sebacato, bis(2,2,6,6-tetrametil-4- piperidil)succinato, bis(1,2,2,6,6-pentametil-4-piperidil)sebacato, bis(1- octiloxi-2,2,6,6-tetrametil-4-piperidil)sebacato, bis(1,2,2,6,6-pentametil-4- piperidil) n-butil-3,5-di-terc-butil-4-hidroxibenzilmalonato, o condensado de 1-(2-hidroxietil)-2,2,6,6-tetrametil-4-hidroxipiperidina e ácido succínico, condensados lineares ou cíclicos de N,N’-bis(2,2,6,6-tetrametil-4- piperidil)hexametilenodiamina e 4-terc-octilamino-2,6-dicloro-1,3,5-triazina, tris(2,2,6,6-tetrametil-4-piperidil)nitrilotriacetato, tetrakis(2,2,6,6-tetrametil- 4-piperidil)-1,2,3,4-butanotetracarboxilato, 1,1’-(1,2-etanodi-il)-bis(3,3,5,5- tetrametilpiperazinona), 4-benzoil-2,2,6,6-tetrametilpiperidina, 4-esteariloxi- 2,2,6,6-tetrametilpiperidina, bis(1,2,2,6,6-pentametilpiperidil)-2-n-butil-2-(2- hidroxi-3,5-di-terc-butilbenzil)malonato, 3-n-octil-7,7,9,9-tetrametil-1,3,8- triazaspiro[4.5]decano-2,4-diona, bis(1-octiloxi-2,2,6,6- tetrametilpiperidil)sebacato,bis(1-octiloxi-2,2,6,6tetrametilpiperidil)succinato, condensados lineares ou cíclicos de N,N’ bis(2,2,6,6-tetrametil-4- piperidil)hexametilenodiamina e 4-morfolino-2,6-dicloro-1,3,5-triazina, o condensado de 2-cloro-4,6-bis(4-n-butilamino-2,2,6,6-tetrametilpiperidil)- 1,3,5-triazina e 1,2-bis(3-aminopropilamino)etano, o condensado de 2-cloro- 4,6-di-(4-n-butilamino-1,2,2,6,6-pentametilpiperidil)-1,3,5-triazina e 1,2- bis(3-aminopropilamino)etano, 8-acetil-3-dodecil-7,7,9,9-tetrametil-1,3,8- triazaspiro[4.5]decano-2,4-diona, 3-dodecil-1-(2,2,6,6-tetrametil-4- piperidil)pirrolidina-2,5-diona, 3-dodecil-1-(1,2,2,6,6-pentametil-4- piperidil)pirrolidina-2,5-diona, uma mistura de 4-hexadeciloxi e 4-esteariloxi- 2,2,6,6-tetrametilpiperidina, um condensado de N,N’-bis(2,2,6,6-tetrametil-4- piperidil)hexametilenodiamina e 4-cicloexilamino-2,6-dicloro-1,3,5-triazina, um condensado de 1,2-bis(3-aminopropilamino)etano e 2,4,6-tricloro-1,3,5- triazina, assim como 4-butilamino-2,2,6,6-tetrametilpiperidina (CAS Reg. No. [136504-96-6]); um condensado de 1,6-hexanodiamina e 2,4,6-tricloro-1,3,5- triazina, assim como N,N-dibutilamina e 4-butilamino-2,2,6,6- tetrametilpiperidina (CAS Reg. No. [192268-64-7]); N-(2,2,6,6-tetrametil-4- piperidil)-n-dodecilsuccinimida, N-(1,2,2,6,6-pentametil-4-piperidil)-n- dodecilsuccinimida, 2-undecil-7,7,9,9-tetrametil-1-oxa-3,8-diaza-4-oxo-spiro- [4,5]decano, um produto da reação de 7,7,9,9-tetrametil-2-cicloundecil-1-oxa- 3,8-diaza-4-oxospiro-[4,5]decano e epiclorohidrina, 1,1-bis(1,2,2,6,6- pentametil-4-piperidiloxicarbonil)-2-(4-metoxifenil)eteno, N,N’-bis-formil- N,N’-bis(2,2,6,6-tetrametil-4-piperidil)hexametilenodiamina, um diéster de ácido 4-metoximetilenomalônico com 1,2,2,6,6-pentametil-4- hidroxipiperidina, poli[metilpropil-3-oxi-4-(2,2,6,6-tetrametil-4- piperidil)]siloxano, um produto da reação de anidrido de ácido maleico- copolímero de α-olefina com 2,2,6,6-tetrametil-4-aminopiperidina ou 1,2,2,6,6-pentametil-4-aminopiperidina, 2,4-bis[N-(1-ciclohexiloxi-2,2,6,6- tetrametilpiperidina-4-il)-N-butilamino]-6-(2-hidroxietil)amino-1,3,5-triazina, 1-(2-hidroxi-2-metilpropoxi)-4-octadecanoiloxi-2,2,6,6-tetrametilpiperidina, 5-(2-etilhexanoil)oximetil-3,3,5-trimetil-2-morfolinona, Sanduvor (Clariant; CAS Reg. No. 106917-31-1], 5-(2-etilhexanoil)oximetil-3,3,5-trimetil-2- morfolinona, o produto da reação de 2,4-bis[(1-ciclohexiloxi-2,2,6,6- piperidina-4-il)butilamino]-6-cloro-s-triazina com N,N’-bis(3-ami- nopropil)etilenodiamina), 1,3,5-tris(N-ciclohexil-N-(2,2,6,6- tetrametilpiperazina-3-ona-4-il)amino)-s-triazina, 1,3,5-tris(N-ciclohexil-N- (1,2,2,6,6-pentametilpiperazina-3-ona-4-il)amino)-s-triazina, [0062] 2.5. Stereochemically hindered amines, for example, 1,6-Hexanediamine N,N'-bis(1-propyloxy-2,2,6,6-tetramethyl-4-piperidinyl)-N,N'-bis-2-[4, 5-bis-(Nn-butyl-N'-1-propyloxy-2,2,6,6-tetramethyl-4-piperidinyl)- 1,3,5-triazine], 1,6-Hexanediamine N, N'- bis(2,2,6,6-tetramethyl-4-piperidinyl)- N,N'-bis-2-[4,5-bis-(Nn-butyl-N'-2,2,6,6-tetramethyl -4-piperidinyl)-1,3,5- triazine], carbonic acid bis(1-undecyloxy-2,2,6,6-tetramethyl-4-piperidyl) ester, bis(2,2,6,6 -tetramethyl-4-piperidyl)sebacate, bis(2,2,6,6-tetramethyl-4-piperidyl)succinate, bis(1,2,2,6,6-pentamethyl-4-piperidyl)sebacate, bis(1 - octyloxy-2,2,6,6-tetramethyl-4-piperidyl)sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidyl) n-butyl-3,5-di-tert-butyl -4-hydroxybenzylmalonate, the condensate of 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid, linear or cyclic condensates of N,N'-bis(2,2,6 ,6-tetramethyl-4-piperidyl)hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine, tris(2,2,6,6-tetramethyl-4-piperidyl)nitrilotriacetate, tetrakis (2,2,6,6-tetramethyl-4-piperidyl)-1,2,3,4-butanetetracarboxylate, 1,1'-(1,2-ethanediyl)-bis(3,3,5,5 - tetramethylpiperazinone), 4-benzoyl-2,2,6,6-tetramethylpiperidine, 4-stearyloxy-2,2,6,6-tetramethylpiperidine, bis(1,2,2,6,6-pentamethylpiperidyl)-2-n -butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl)malonate, 3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane- 2,4-dione, bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)sebacate, bis(1-octyloxy-2,2,6,6tetramethylpiperidyl)succinate, linear or cyclic N,N' bis condensates (2,2,6,6-tetramethyl-4-piperidyl)hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine, the condensate of 2-chloro-4,6-bis(4- n-butylamino-2,2,6,6-tetramethylpiperidyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane, the condensate of 2-chloro-4,6-di-(4 -n-butylamino-1,2,2,6,6-pentamethylpiperidyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane, 8-acetyl-3-dodecyl-7,7, 9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione, 3-dodecyl-1-(2,2,6,6-tetramethyl-4-piperidyl)pyrrolidine-2,5 -dione, 3-dodecyl-1-(1,2,2,6,6-pentamethyl-4-piperidyl)pyrrolidine-2,5-dione, a mixture of 4-hexadecyloxy and 4-stearyloxy-2,2,6 ,6-tetramethylpiperidine, a condensate of N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)hexamethylenediamine and 4-cyclohexylamino-2,6-dichloro-1,3,5-triazine, a condensate of 1,2-bis(3-aminopropylamino)ethane and 2,4,6-trichloro-1,3,5-triazine, as well as 4-butylamino-2,2,6,6-tetramethylpiperidine (CAS Reg. No [136504-96-6]); a condensate of 1,6-hexanediamine and 2,4,6-trichloro-1,3,5-triazine, as well as N,N-dibutylamine and 4-butylamino-2,2,6,6-tetramethylpiperidine (CAS Reg. No. [192268-64-7]); N-(2,2,6,6-tetramethyl-4-piperidyl)-n-dodecylsuccinimide, N-(1,2,2,6,6-pentamethyl-4-piperidyl)-n-dodecylsuccinimide, 2-undecyl- 7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxo-spiro-[4,5]decane, a reaction product of 7,7,9,9-tetramethyl-2- cycloundecyl-1-oxa-3,8-diaza-4-oxospiro-[4,5]decane and epichlorohydrin, 1,1-bis(1,2,2,6,6-pentamethyl-4-piperidyloxycarbonyl)-2- (4-methoxyphenyl)ethene, N,N'-bis-formyl- N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)hexamethylenediamine, a diester of 4-methoxymethylenemalonic acid with 1,2 ,2,6,6-pentamethyl-4-hydroxypiperidine, poly[methylpropyl-3-oxy-4-(2,2,6,6-tetramethyl-4-piperidyl)]siloxane, a reaction product of maleic acid anhydride - α-olefin copolymer with 2,2,6,6-tetramethyl-4-aminopiperidine or 1,2,2,6,6-pentamethyl-4-aminopiperidine, 2,4-bis[N-(1-cyclohexyloxy- 2,2,6,6-tetramethylpiperidin-4-yl)-N-butylamino]-6-(2-hydroxyethyl)amino-1,3,5-triazine, 1-(2-hydroxy-2-methylpropoxy)-4 -octadecanoyloxy-2,2,6,6-tetramethylpiperidine, 5-(2-ethylhexanoyl)oxymethyl-3,3,5-trimethyl-2-morpholinone, Sanduvor (Clariant; CAS Reg. No. 106917-31-1], 5-(2-ethylhexanoyl)oxymethyl-3,3,5-trimethyl-2-morpholinone, the reaction product of 2,4-bis[(1-cyclohexyloxy-2 ,2,6,6-piperidin-4-yl)butylamino]-6-chloro-s-triazine with N,N'-bis(3-aminopropyl)ethylenediamine), 1,3,5-tris(N- cyclohexyl-N-(2,2,6,6-tetramethylpiperazine-3-one-4-yl)amino)-s-triazine, 1,3,5-tris(N-cyclohexyl-N-(1,2,2 ,6,6-pentamethylpiperazine-3-one-4-yl)amino)-s-triazine,

[0063] 2.6 Derivados de benzoxazinona tais como, por exemplo, 2,2’- (1,4-fenileno)bis[4H-3,1-benzoxazin-4-ona] (CAS No. 018600-59-4).[0063] 2.6 Benzoxazinone derivatives such as, for example, 2,2'-(1,4-phenylene)bis[4H-3,1-benzoxazin-4-one] (CAS No. 018600-59-4).

[0064] 2.7. Oxamidas, por exemplo, 4,4’-dioctiloxioxanilida, 2,2’- dietoxioxanilida, 2,2’-dioctiloxi-5,5’-di-terc-butoxanilida, 2,2’-didodeciloxi- 5,5’-di-terc-butoxanilida, 2-etoxi-2’-etiloxanilida, N,N’-bis(3- dimetilaminopropil)oxamida, 2-etoxi-5-terc-butil-2’-ethoxanilida e sua mistura com 2-etoxi-2’-etil-5,4’-di-terc-butoxanilida, misturas de oxanilidas dissubstituídas com o- e p-metoxi e misturas de oxanilidas dissubstituídas com o- e p-metoxi.[0064] 2.7. Oxamides, e.g. 4,4'-dioctyloxyoxanilide, 2,2'-diethoxyoxanilide, 2,2'-dioctyloxy-5,5'-di-tert-butoxanilide, 2,2'-didodecyloxy-5,5'-di -tert-butoxanilide, 2-ethoxy-2'-ethyloxanilide, N,N'-bis(3-dimethylaminopropyl)oxamide, 2-ethoxy-5-tert-butyl-2'-ethoxanilide and their mixture with 2-ethoxy-2 '-ethyl-5,4'-di-tert-butoxanilide, mixtures of oxanilides disubstituted with o- and p-methoxy and mixtures of oxanilides disubstituted with o- and p-methoxy.

[0065] 2.8. 2-(2-Hidroxifenil)-1,3,5-triazinas, por exemplo, 2,4,6- tris(2-hidroxi-4-octiloxifenil)-1,3,5-triazina, 2-(2-hidroxi-4-octiloxifenil)-4,6- bis(2,4-dimetilfenil)-1,3,5-triazina, 2-(2,4-dihidroxifenil)-4,6-bis(2,4- dimetilfenil)-1,3,5-triazina, 2,4-bis(2-hidroxi-4-propiloxifenil)-6-(2,4- dimetilfenil)-1,3,5-triazina, 2-(2-hidroxi-4-octiloxifenil)-4,6-bis(4-metilfenil)- 1,3,5-triazina, 2-(2-hidroxi-4-dodeciloxifenil)-4,6-bis(2,4-dimetilfenil)-1,3,5- triazina, 2-(2-hidroxi-4-trideciloxifenil)-4,6-bis(2,4-dimetilfenil)-1,3,5- triazina, 2-[2-hidroxi-4-(2-hidroxi-3-butiloxipropoxi)fenil]-4,6-bis(2,4- dimetil)-1,3,5-triazina, 2-[2-hidroxi-4-(2-hidroxi-3-octiloxipropiloxi)fenil]- 4,6-bis(2,4-dimetil)-1,3,5-triazina, 2-[4-(dodeciloxi/trideciloxi-2- hidroxipropoxi)-2-hidroxifenil]-4,6-bis(2,4-dimetilfenil)-1,3,5-triazina, 2-[2- hidroxi-4-(2-hidroxi-3-dodeciloxipropoxi)fenil]-4,6-bis(2,4-dimetilfenil)- 1,3,5-triazina, 2-(2-hidroxi-4-hexiloxi)fenil-4,6-difenil-1,3,5-triazina, 2-(2- hidroxi-4-metoxifenil)-4,6-difenil-1,3,5-triazina, 2,4,6-tris[2-hidroxi-4-(3- butoxi-2-hidroxipropoxi)fenil]-1,3,5-triazina, 2-(2-hidroxifenil)-4-(4- metoxifenil)-6-fenil-1,3,5-triazina, 2-{2-hidroxi-4-[3-(2-etilhexil-1-oxi)-2- hidroxipropiloxi]fenil}-4,6-bis(2,4-dimetilfenil)-1,3,5-triazina, 2,4-bis(4-[2- etilhexiloxi]-2-hidroxifenil)-6-(4-metoxifenil)-1,3,5-triazina, 2-(4,6-bis- bifenil-4-il-1,3,5-triazin-2-il)-5-(2-etil-(n)-hexiloxi)fenol.[0065] 2.8. 2-(2-Hydroxyphenyl)-1,3,5-triazines, e.g. 2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine, 2-(2-hydroxy -4-octyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)- 1,3,5-triazine, 2,4-bis(2-hydroxy-4-propyloxyphenyl)-6-(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4- octyloxyphenyl)-4,6-bis(4-methylphenyl)- 1,3,5-triazine, 2-(2-hydroxy-4-dodecyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3 ,5- triazine, 2-(2-hydroxy-4-tridecyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5- triazine, 2-[2-hydroxy-4-(2- hydroxy-3-butyloxypropoxy)phenyl]-4,6-bis(2,4-dimethyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-octyloxypropyloxy)phenyl] - 4,6-bis(2,4-dimethyl)-1,3,5-triazine, 2-[4-(dodecyloxy/tridecyloxy-2-hydroxypropoxy)-2-hydroxyphenyl]-4,6-bis(2, 4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-dodecyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)- 1,3 ,5-triazine, 2-(2-hydroxy-4-hexyloxy)phenyl-4,6-diphenyl-1,3,5-triazine, 2-(2-hydroxy-4-methoxyphenyl)-4,6-diphenyl- 1,3,5-triazine, 2,4,6-tris[2-hydroxy-4-(3-butoxy-2-hydroxypropoxy)phenyl]-1,3,5-triazine, 2-(2-hydroxyphenyl)- 4-(4-methoxyphenyl)-6-phenyl-1,3,5-triazine, 2-{2-hydroxy-4-[3-(2-ethylhexyl-1-oxy)-2-hydroxypropyloxy]phenyl}-4 ,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2,4-bis(4-[2-ethylhexyloxy]-2-hydroxyphenyl)-6-(4-methoxyphenyl)-1,3 ,5-triazine, 2-(4,6-bis-biphenyl-4-yl-1,3,5-triazin-2-yl)-5-(2-ethyl-(n)-hexyloxy)phenol.

[0066] 3. Desativadores de metal, por exemplo, N,N’-difeniloxamida, N-salicilal-N’-saliciloil hidrazina, N,N’-bis(saliciloil)hidrazina, N,N’-bis(3,5- di-terc-butil-4-hidroxifenilpropionil)hidrazina, 3-saliciloilamino-1,2,4-triazol, bis(benzilideno)oxalil dihidrazida, oxanilida, isoftloil dihidrazida, sebacoil bisfenilhidrazida, N,N’-diacetiladipoil dihidrazida, N,N’-bis(saliciloil)oxalil dihidrazida, N,N’-bis(saliciloil)tiopropionil dihidrazida.[0066] 3. Metal deactivators, for example, N,N'-diphenyloxamide, N-salicylal-N'-salicyloyl hydrazine, N,N'-bis(salicyloyl)hydrazine, N,N'-bis(3,5 - di-tert-butyl-4-hydroxyphenylpropionyl)hydrazine, 3-salicyloylamino-1,2,4-triazole, bis(benzylidene)oxalyl dihydrazide, oxanilide, isophthloyl dihydrazide, sebacoyl bisphenylhydrazide, N,N'-diacetyladipoyl dihydrazide, N, N'-bis(salicyloyl)oxalyl dihydrazide, N,N'-bis(salicyloyl)thiopropionyl dihydrazide.

[0067] 3a. Formamidinas, por exemplo, Etoxicarbonilfenil)-N’-etil- N’-fenil formamidina.[0067] 3a. Formamidines, e.g. Ethoxycarbonylphenyl)-N'-ethyl-N'-phenyl formamidine.

[0068] 4. Fosfitos e fosfonitos, por exemplo, fosfito de trifenila, fosfitos de difenilalquila, fosfitos de fenildialquila, tris(nonilfenil) fosfito, fosfito de trilaurila, fosfito de trioctadecila, difosfito de diestearilpentaeritritol, tris(2,4-di-terc-butilfenil) fosfito, disfosfito de diisodecil pentaeritritol, bis(2,4-di-terc-butilfenil)pentaeritritol difosfito, bis(2,4-di-cumilfenil)pentaeritritol difosfito, bis(2,6-di-terc-butil-4- metilfenil)pentaeritritol difosfito, difosfito de diisodeciloxipentaeritritol, bis(2,4-di-terc-butil-6-metilfenil)pentaeritritol difosfito, bis(2,4,6-tris(terc- butilfenil)pentaeritritol difosfito, trifosfito de triestearil sorbitol, difosfonito de tetraquis(2,4-di-terc-butilfenil) 4,4’-bifenileno, [3,3’,5,5’-tetra-terc.butil- 1,1’bifenil-2,2’-di-il]-[3-(3-metil-4-hidroxi-5-terc.butil-fenil)-propil]-fosfito, 6-isooctiloxi-2,4,8,10-tetra-terc-butil-12H-dibenz[d,g]-1,3,2-dioxafosfocina, fosfito de bis(2,4-di-terc-butil-6-metilfenil)metila, fosfito de bis(2,4-di-terc- butil-6-metilfenil)etila, tris-[4-terc.butil-2-(5-terc.butil-3H-1-benzofuran-2- ona)-fenil]-fosfito, tris-[4-(1,1’3,3’-tetrametil-butano)-2-(5-(1,1’3,3’- tetrametil-butano-3H-1-benzofuran-2-ona)-fenil]-fosfito, tris-[2,6-dimetil- (5,7-di-terc.butil)-3H-1-benzofuran-2-ona)-fenil]-fosfito, bis-[2,6-dimetil- (5,7-di-terc. butil)-3H-1-benzofuran-2-ona)-fenil]-fenil-fosfito, bis-[2,6- dimetil-(5,7-di-terc.butil)-3H-1-benzofuran-2-ona)-fenil]-[2,4-di-terc.butil- fenil]-fosfito, [3,3’,5,5’-tetra-terc.butil-1,1’bifenil-2,2’-di-il]-[4-terc.butil-(5- terc.butil)-3H-1-benzofuran-2-ona)-fenil]-fosfito, [3,3’,5,5’-tetra-terc.butil- 1,1’bifenil-2,2’-di-il]-[2,6-dimetil-(5,7-di-terc.butil)-3H-1-benzofuran-2-ona)- fenil]-fosfito, [2,2’-metileno-bis-(4,6-di-terc.butil-fenil)-1,1’-di-il]-[1,6- dimetil-4-(5,7-di-terc.butil)-3H-1-benzofuran-2-ona)-fenil]-fosfito, [2,2’- etileno-bis-(4,6-di-terc.butil-fenil)-1,1’-di-il]-[1,6-dimetil-4-(5,7-di- terc.butil)-3H-1-benzofuran-2-ona)-fenil]-fosfito, [2,2’-etileno-bis-(4,6-di- terc.butil-fenil)-1,1’-di-il]-[1-metil-6-terc.butil-4-(5,7-di-terc.butil)-3H-1- benzofuran-2-ona)-fenil]-fosfito, difosfito de bis-(2,6-dimetil-(5,7-di- terc.butil)-3H-1-benzofuran-2-ona)-fenol) pentaeritritol, difosfito de bis-(1- metil-6-terc.butil -(5,7-di-terc.butil)-3H-1-benzofuran-2-ona)-fenol) pentaeritritol, difosfito de bis-(4-terc.butil -(5-terc.butil)-3H-1-benzofuran-2- ona)-fenol) pentaeritritol, difosfito de bis-(4-(1,1’3,3’-tetrametil-butano)-(5- (1,1’3,3’-tetrametil-butano))-3H-1-benzofuran-2-ona)-fenol) pentaeritritol, 6- fluoro-2,4,8,10-tetra-terc-butil-12-metil-dibenz[d,g]-1,3,2-dioxafosfocina, 2,2’,2’’-nitrilo[trietiltris(3,3’,5,5’-tetra-terc-butil-1,1’-bifenil-2,2’-di- il)fosfito], 2-etilhexil(3,3’,5,5’-tetra-terc-butil-1,1’-bifenil-2,2’-di-il)fosfito, 5- butil-5-etil-2-(2,4,6-tri-terc-butilfenoxi)-1,3,2-dioxafosfirano.[0068] 4. Phosphites and phosphonites, for example, triphenyl phosphite, diphenylalkyl phosphites, phenyldialkyl phosphites, tris(nonylphenyl) phosphite, trilauryl phosphite, trioctadecyl phosphite, distearylpentaerythritol diphosphite, tris(2,4-di- tert-butylphenyl) phosphite, diisodecyl pentaerythritol diphosphite, bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite, bis(2,4-di-cumylphenyl)pentaerythritol diphosphite, bis(2,6-di-tert-butyl -4- methylphenyl)pentaerythritol diphosphite, diisodecyloxypentaerythritol diphosphite, bis(2,4-di-tert-butyl-6-methylphenyl)pentaerythritol diphosphite, bis(2,4,6-tris(tert-butylphenyl)pentaerythritol diphosphite, triphosphite Tristearyl sorbitol, tetrakis diphosphonite(2,4-di-tert-butylphenyl) 4,4'-biphenylene, [3,3',5,5'-tetra-tert.butyl- 1,1'biphenyl-2,2 '-di-yl]-[3-(3-methyl-4-hydroxy-5-tert.butyl-phenyl)-propyl]-phosphite, 6-isooctyloxy-2,4,8,10-tetra-tert-butyl -12H-dibenz[d,g]-1,3,2-dioxaphosphocine, bis(2,4-di-tert-butyl-6-methylphenyl)methyl phosphite, bis(2,4-di-tert- butyl-6-methylphenyl)ethyl, tris-[4-tert.butyl-2-(5-tert.butyl-3H-1-benzofuran-2-one)-phenyl]-phosphite, tris-[4-(1, 1'3,3'-tetramethyl-butane)-2-(5-(1,1'3,3'-tetramethyl-butane-3H-1-benzofuran-2-one)-phenyl]-phosphite, tris-[ 2,6-dimethyl-(5,7-di-tert.butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite, bis-[2,6-dimethyl-(5,7-di- terc. butyl)-3H-1-benzofuran-2-one)-phenyl]-phenyl-phosphite, bis-[2,6-dimethyl-(5,7-di-tert.butyl)-3H-1-benzofuran-2- ona)-phenyl]-[2,4-di-tert.butyl- phenyl]-phosphite, [3,3',5,5'-tetra-tert.butyl-1,1'biphenyl-2,2'- di-yl]-[4-tert.butyl-(5-tert.butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite, [3,3',5,5'-tetra-tert .butyl-1,1'biphenyl-2,2'-di-yl]-[2,6-dimethyl-(5,7-di-tert.butyl)-3H-1-benzofuran-2-one)-phenyl ]-phosphite, [2,2'-methylene-bis-(4,6-di-tert.butyl-phenyl)-1,1'-di-yl]-[1,6-dimethyl-4-(5, 7-di-tert.butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite, [2,2'-ethylene-bis-(4,6-di-tert.butyl-phenyl)-1 ,1'-di-yl]-[1,6-dimethyl-4-(5,7-di-tert.butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite, [2,2 '-ethylene-bis-(4,6-di-tert.butyl-phenyl)-1,1'-di-yl]-[1-methyl-6-tert.butyl-4-(5,7-di- tert.butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite, bis-(2,6-dimethyl-(5,7-di-tert.butyl)-3H-1-benzofuran-diphosphite 2-one)-phenol) pentaerythritol, bis-(1-methyl-6-tert.butyl-(5,7-di-tert.butyl)-3H-1-benzofuran-2-one)-phenol) pentaerythritol diphosphite , bis-(4-tert.butyl-(5-tert.butyl)-3H-1-benzofuran-2-one)-phenol) pentaerythritol diphosphite, bis-(4-(1,1'3,3) '-tetramethyl-butane)-(5-(1,1'3,3'-tetramethyl-butane))-3H-1-benzofuran-2-one)-phenol) pentaerythritol, 6-fluoro-2,4,8 ,10-tetra-tert-butyl-12-methyl-dibenz[d,g]-1,3,2-dioxaphosphocine, 2,2',2''-nitrile[triethyltris(3,3',5,5' -tetra-tert-butyl-1,1'-biphenyl-2,2'-di-yl)phosphite], 2-ethylhexyl(3,3',5,5'-tetra-tert-butyl-1,1' -biphenyl-2,2'-di-yl)phosphite, 5-butyl-5-ethyl-2-(2,4,6-tri-tert-butylphenoxy)-1,3,2-dioxaphosphyrane.

[0069] Os seguintes fosfitos são especialmente preferidos: Tris(2,4-di-terc-butilfeml) fosfito (Irgafos®168, Ciba Specialty Chemicals Inc.), tris(nonilfenil) fosfito, ácido de fósforo misto de 2,4-bis(1,1- dimetilpropil)fenila e triésteres de 4-(1,1-dimetilpropil)fenila (CAS Reg. No. 939402-02-5), polímero de éster trifenílico de ácido fosforoso com alfa-hidro- omega-hidroxipoli[oxi(metil-1,2-etanodi-il) C10-16 alquil ésteres (CAS Reg. No. 1227937-46-3). [2,2’-etileno-bis-(4,6-di-terc.butil-fenil)-1,1’-di-il]-[1,6- dimetil-4-(5,7-di-terc.butil)-3H-1-benzofuran-2-ona)-fenil]-fosfito, [2,2’- etileno-bis-(4,6-di-terc.butil-fenil)-1,1’-di-il]-[1-metil-6-terc.butil-4-(5,7-di- terc.butil)-3H-1-benzofuran-2-ona)-fenil]-fosfito, [3,3’,5,5’-tetra-terc.butil- 1,1’bifenil-2,2’-di-il]-[ 3-(3-metil-4-hidroxi-5-terc.butil-fenil)-propil]-fosfito.[0069] The following phosphites are especially preferred: Tris(2,4-di-tert-butylphenyl) phosphite (Irgafos®168, Ciba Specialty Chemicals Inc.), tris(nonylphenyl) phosphite, 2,4- bis(1,1-dimethylpropyl)phenyl and 4-(1,1-dimethylpropyl)phenyl triesters (CAS Reg. No. 939402-02-5), phosphorous acid triphenyl ester polymer with alpha-hydro-omega-hydroxypoly [oxy(methyl-1,2-ethanediyl) C10-16 alkyl esters (CAS Reg. No. 1227937-46-3). [2,2'-ethylene-bis-(4,6-di-tert.butyl-phenyl)-1,1'-di-yl]-[1,6-dimethyl-4-(5,7-di- tert.butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite, [2,2'- ethylene-bis-(4,6-di-tert.butyl-phenyl)-1,1'- di-yl]-[1-methyl-6-tert.butyl-4-(5,7-di-tert.butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite, [3,3 ',5,5'-tetra-tert.butyl- 1,1'biphenyl-2,2'-di-yl]-[3-(3-methyl-4-hydroxy-5-tert.butyl-phenyl)- propyl]-phosphite.

[0070] 5. Hidroxilaminas, por exemplo, N,N-dibenzilhidroxilamina, N,N-dietilhidroxilamina, N,N-dioctilhidroxilamina, N,N- dilaurilhidroxilamina, N,N-ditetradecilhidroxilamina, N,N- dihexadecilhidroxilamina, N,N-dioctadecilhidroxilamina, N-hexadecil-N- octadecilhidroxilamina, N-heptadecil-N-octadecilhidroxilamina, N,N- dialquilhidroxilamina derivada de amina de sebo hidrogenado.[0070] 5. Hydroxylamines, for example, N,N-dibenzylhydroxylamine, N,N-diethylhydroxylamine, N,N-dioctylhydroxylamine, N,N-dilaurylhydroxylamine, N,N-ditetradecylhydroxylamine, N,N-dihexadecylhydroxylamine, N,N- dioctadecylhydroxylamine, N-hexadecyl-N- octadecylhydroxylamine, N-heptadecyl-N-octadecylhydroxylamine, N,N- dialkylhydroxylamine derived from hydrogenated tallow amine.

[0071] 6. Óxidos de amina, por exemplo, óxido de N,N- dibenzilhidroxilamina, óxido de N,N-dietilhidroxilamina, óxido de N,N- dioctilhidroxilamina, óxido de N,N-dilaurilhidroxilamina, óxido de N,N- ditetradecilhidroxilamina, óxido de N,N-dihexadecilhidroxilamina, óxido de N,N-dioctadecilhidroxilamina, óxido de N-hexadecil-N- octadecilhidroxilamina, óxido de N-heptadecil-N-octadecilhidroxilamina, óxido de N,N-dialquilhidroxilamina derivado de amina de sebo hidrogenado.[0071] 6. Amine oxides, for example, N,N-dibenzylhydroxylamine oxide, N,N-diethylhydroxylamine oxide, N,N-dioctylhydroxylamine oxide, N,N-dilaurylhydroxylamine oxide, N,N- oxide ditetradecylhydroxylamine, N,N-dihexadecylhydroxylamine oxide, N,N-dioctadecylhydroxylamine oxide, N-hexadecyl-N-octadecylhydroxylamine oxide, N-heptadecyl-N-octadecylhydroxylamine oxide, N,N-dialkylhydroxylamine oxide derived from tallow amine hydrogenated.

[0072] 7. Nitronas, por exemplo, N-benzil-alfa-fenilnitrona, N-etil- alfa-metilnitrona, N-octil-alfa-heptilnitrona, N-lauril-alfa-undecilnitrona, N- tetradecil-alfa-tridecilnnitrona, N-hexadecil-alfa-pentadecilnitrona, N- octadecil-alfa-heptadecilnitrona, N-hexadecil-alfa-heptadecilnitrona, N- ocatadecil-alfa-pentadecilnitrona, N-heptadecil-alfa-heptadecilnitrona, N- octadecil-alfa-hexadecilnitrona, nitrona derivada de N,N- dialquilhidroxilamina derivada de amina de sebo hidrogenado.[0072] 7. Nitrones, for example, N-benzyl-alpha-phenylnitrone, N-ethyl-alpha-methylnitrone, N-octyl-alpha-heptylnitrone, N-lauryl-alpha-undecylnitrone, N-tetradecyl-alpha-tridecylnitrone, Nitron of N,N-dialkylhydroxylamine derived from hydrogenated tallow amine.

[0073] 8. Tiosinergísticos, por exemplo, tiodipropionato de dilaurila, tiodipropionato de dimistrila, tiodipropionato de diestearila, pentaeritritol tetraquis[3-(dodeciltio)propionato] ou dissulfeto de diestearila.[0073] 8. Thiosinergistics, for example, dilauryl thiodipropionate, dimistryl thiodipropionate, distearyl thiodipropionate, pentaerythritol tetrakis [3-(dodecylthio) propionate] or distearyl disulfide.

[0074] 9. Removedores de peróxido, por exemplo, ésteres de ácido β- tiodipropiônico, por exemplo, os ésteres de laurila, estearila, miristila ou tridecila, mercaptobenzimidazol ou o sal de zinco de 2-mercapto- benzimidazol, dibutilditiocarbamato de zinco, dissulfeto de dioctadecila, pentaeritritol tetraquis(β-dodecilmercapto)propionato.[0074] 9. Peroxide removers, for example, esters of β-thiodipropionic acid, for example, lauryl, stearyl, myristyl or tridecyl esters, mercaptobenzimidazole or the zinc salt of 2-mercapto-benzimidazole, zinc dibutyldithiocarbamate, dioctadecyl disulfide, pentaerythritol tetrakis(β-dodecylmercapto)propionate.

[0075] 10. Co-estabilizadores básicos, por exemplo, melamina, polivinilpirrolidona, diciandiamida, cianurato de trialila, derivados de ureia, derivados de hidrazina, aminas, poliamidas, poliuretanos, sais de metal alcalino e sais de metal alcalino-terroso de ácidos graxos superiores, por exemplo, estearato de cálcio, estearato de zinco, beenato de magnésio, estearato de magnésio, ricinoleato de sódio e palmitato de potássio, pirocatecolato de antimônio ou pirocatecolato de zinco, zeólitos, hidrotalcitas, hidrocalumitas.[0075] 10. Basic co-stabilizers, for example, melamine, polyvinylpyrrolidone, dicyandiamide, triallyl cyanurate, urea derivatives, hydrazine derivatives, amines, polyamides, polyurethanes, alkali metal salts and alkaline earth metal salts of acids higher fatty acids, for example, calcium stearate, zinc stearate, magnesium behenate, magnesium stearate, sodium ricinoleate and potassium palmitate, antimony pyrocatecholate or zinc pyrocatecholate, zeolites, hydrotalcites, hydrocalumites.

[0076] 11. Agentes de nucleação, por exemplo, substâncias inorgânicas, tais como talco, óxidos de metal, tais como dióxido de titânio ou óxido de magnésio, fosfatos, carbonatos ou sulfatos de, preferivelmente, metais alcalinos-terrosos; compostos orgânicos, tais como ácidos mono- ou policarboxílicos e sais dos mesmos, por exemplo, ácido 4-terc-butilbenzóico, ácido adípico, ácido difenilacético, succinato de sódio ou benzoato de sódio; compostos poliméricos, tais como copolímeros iônicos (ionômeros). Especialmente preferidos são 1,3:2,4-bis(3’,4’-dimetilbenzilideno)sorbitol, 1,3:2,4-di(parametildibenzilideno)sorbitol, e 1,3:2,4-di(benzilideno)sorbitol. Agentes de beta-nucleação são também de interesse.[0076] 11. Nucleating agents, for example, inorganic substances, such as talc, metal oxides, such as titanium dioxide or magnesium oxide, phosphates, carbonates or sulfates of, preferably, alkaline earth metals; organic compounds, such as mono- or polycarboxylic acids and salts thereof, for example, 4-tert-butylbenzoic acid, adipic acid, diphenylacetic acid, sodium succinate or sodium benzoate; polymeric compounds, such as ionic copolymers (ionomers). Especially preferred are 1,3:2,4-bis(3',4'-dimethylbenzylidene)sorbitol, 1,3:2,4-di(paramethyldibenzylidene)sorbitol, and 1,3:2,4-di(benzylidene) sorbitol. Beta-nucleating agents are also of interest.

[0077] 12. Enchimentos e agentes de reforço, por exemplo, carbonato de cálcio, silicatos, fibras de vidro, fibras de carbono, contas de vidro, amiantos, talco (preferivelmente com um tamanho de partícula de 0,01 a 20 μm), caulim, mica, sulfato de bário, óxidos e hidróxidos de metal, negro de fumo, grafite, farinha de madeira e farinhas de fibras de outros produtos naturais, fibras sintéticas.[0077] 12. Fillers and reinforcing agents, for example, calcium carbonate, silicates, glass fibers, carbon fibers, glass beads, asbestos, talc (preferably with a particle size of 0.01 to 20 μm) , kaolin, mica, barium sulfate, metal oxides and hydroxides, carbon black, graphite, wood flour and fiber flours of other natural products, synthetic fibers.

[0078] 13. Outros aditivos, por exemplo, plastificantes, lubrificantes, emulsificantes, pigmentos, aditivos de reologia, catalisadores, agentes de controle de fluxo, abrilhantadores ópticos, agentes à prova de chama, agentes antiestáticos e agentes de sopro.[0078] 13. Other additives, for example, plasticizers, lubricants, emulsifiers, pigments, rheology additives, catalysts, flow control agents, optical brighteners, flameproof agents, antistatic agents and blowing agents.

[0079] 14. Benzofuranonas e indolinonas, por exemplo, as descritas em U.S. 4.325.863; U.S. 4.338.244; U.S. 5.175.312; U.S. 5.216.052; U.S. 5.252.643; DE-A-4316611; DE-A-4316622; DE-A-4316876; EP-A-0589839, EP-A-0591102; EP-A-1291384 ou 3-[4-(2-acetoxietoxi)fenil]-5,7-di-terc- butilbenzofuran-2-ona, 5,7-di-terc-butil-3-[4-(2-stearoiloxietoxi)fenil]- benzofuran-2-ona, 3,3’-bis[5,7-di-terc-butil-3-(4-[2-hidroxietoxi]fenil)ben- zofuran-2-ona], 5,7-di-terc-butil-3-(4-etoxifenil)benzofuran-2-ona, 3-(4- acetoxi-3,5-dimetilfenil)-5,7-di-terc-butilbenzofuran-2-ona, 3-(3,5-dimetil-4- pivaloiloxifenil)-5,7-di-terc-butilbenzofuran-2-ona, 3-(3,4-dimetilfenil)-5,7- di-terc-butilbenzofuran-2-ona, 3-(2,3-dimetilfenil)-5,7-di-terc- butilbenzofuran-2-ona, 3-(2-acetil-5-isooctilfenil)-5-isooctilbenzofuran-2-ona.[0079] 14. Benzofuranones and indolinones, for example, those described in U.S. 4,325,863; U.S. 4,338,244; U.S. 5,175,312; U.S. 5,216,052; U.S. 5,252,643; DE-A-4316611; DE-A-4316622; DE-A-4316876; EP-A-0589839, EP-A-0591102; EP-A-1291384 or 3-[4-(2-acetoxyethoxy)phenyl]-5,7-di-tert-butylbenzofuran-2-one, 5,7-di-tert-butyl-3-[4-(2 -stearoyloxyethoxy)phenyl]-benzofuran-2-one, 3,3'-bis[5,7-di-tert-butyl-3-(4-[2-hydroxyethoxy]phenyl)benzofuran-2-one], 5,7-di-tert-butyl-3-(4-ethoxyphenyl)benzofuran-2-one, 3-(4-acetoxy-3,5-dimethylphenyl)-5,7-di-tert-butylbenzofuran-2-one , 3-(3,5-dimethyl-4-pivaloyloxyphenyl)-5,7-di-tert-butylbenzofuran-2-one, 3-(3,4-dimethylphenyl)-5,7-di-tert-butylbenzofuran-2 -one, 3-(2,3-dimethylphenyl)-5,7-di-tert-butylbenzofuran-2-one, 3-(2-acetyl-5-isooctylphenyl)-5-isooctylbenzofuran-2-one.

[0080] O aditivo convencional pode estar presente no polietileno do tubo de acordo com a presente invenção em uma quantidade de, por exemplo, 0,001 a 10 %, em relação ao peso do polietileno.[0080] The conventional additive may be present in the polyethylene of the tube according to the present invention in an amount of, for example, 0.001 to 10%, relative to the weight of the polyethylene.

[0081] Uma modalidade adicional da presente invenção é o tubo de polietileno como definido acima, que está em contato com água clorada (desinfetantes de água clorada comuns tais como cloro (hipoclorito), dióxido de cloro e cloraminas) ou não clorada.[0081] A further embodiment of the present invention is the polyethylene tube as defined above, which is in contact with chlorinated water (common chlorinated water disinfectants such as chlorine (hypochlorite), chlorine dioxide and chloramines) or non-chlorinated water.

[0082] Outra modalidade da presente invenção é o uso de uma mistura contendo os componentes A) e B) em uma razão em peso de 1:10 a 10:1 para estabilizar um tubo de polietileno.[0082] Another embodiment of the present invention is the use of a mixture containing components A) and B) in a weight ratio of 1:10 to 10:1 to stabilize a polyethylene tube.

[0083] Ainda outra modalidade da presente invenção é um método para estabilizar um tubo de polietileno que compreende incorporar no polietileno os componentes A) e B) em uma razão em peso de 1:10 a 10:1.[0083] Yet another embodiment of the present invention is a method for stabilizing a polyethylene tube that comprises incorporating components A) and B) into the polyethylene in a weight ratio of 1:10 to 10:1.

[0084] As modalidades da presente invenção incluem tubos de água clorada ou não clorada para aplicações domésticas, municipais ou industriais, aplicações em tubo sem pressão até alta pressão usadas para água potável ou não potável, para água de uso geral ou de refugo.[0084] Embodiments of the present invention include chlorinated or non-chlorinated water pipes for domestic, municipal or industrial applications, non-pressure to high pressure pipe applications used for potable or non-potable water, for general purpose or waste water.

[0085] Os exemplos abaixo ilustram a invenção em maiores detalhes. Todas as porcentagens e partes são em peso, a menos que especificado em contrário.[0085] The examples below illustrate the invention in greater detail. All percentages and parts are by weight unless otherwise specified.

[0086] Aditivos usados nos exemplos seguintes: Irganox®1330: (Número CAS: 1709-70-2) 1,3,5-Tris(3,5-di-terc-butil-4-hidroxibenzil)-2,4,6- trimetilbenzeno Irgafos®168: (Número CAS: 31570-04-4) Tris[2,4-di-terc-butilfenil]fosfito Sumilizer®GP: (Número CAS: 203255-81-6) 6-[3-(3-terc-Butil-4-hidroxi-5-metilfenil)propoxi]-2,4,8,10- tetra-terc-butildibenzo[d,f][1,3,2]dioxafosfepina Composto D-1: Composto (108) descrito no exemplo S-8 de WO-A- 2015/121445 [2,2’-Etileno-bis-(4,6-di-terc.butil-fenil)-1,1’-di-il]-[1,6- dimetil-4(5,7-di-terc.butil)-3H-1-benzofuran-2-ona)-fenil]-fosfito Chimassorb®2020: (Número CAS: 192268-64-7) em que E1 éE2 ée a1 é um número de 2 a 10. Hycite®713: (Número CAS: 012304-65-3 ou 11097-59-9) Hidrotalcita (Carbonato e hidróxido de alumínio e magnésio hidratado)[0086] Additives used in the following examples: Irganox®1330: (CAS number: 1709-70-2) 1,3,5-Tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4, 6- trimethylbenzene Irgafos®168: (CAS Number: 31570-04-4) Tris[2,4-di-tert-butylphenyl]phosphite Sumilizer®GP: (CAS Number: 203255-81-6) 6-[3-( 3-tert-Butyl-4-hydroxy-5-methylphenyl)propoxy]-2,4,8,10-tetra-tert-butyldibenzo[d,f][1,3,2]dioxaphosphepine Compound D-1: Compound ( 108) described in example S-8 of WO-A-2015/121445 [2,2'-Ethylene-bis-(4,6-di-tert.butyl-phenyl)-1,1'-di-yl]- [1,6-dimethyl-4(5,7-di-tert.butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite Chimassorb®2020: (CAS Number: 192268-64-7) where E1 is E2 is and a1 is a number from 2 to 10. Hycite®713: (CAS Number: 012304-65-3 or 11097-59-9) Hydrotalcite (Hydrate Aluminum Magnesium Carbonate and Hydroxide)

Exemplos:Examples:

[0087] Preparação das amostras de teste: Uma mistura de um polietileno de alta densidade não estabilizado (HD-PE; Hostalen®CRP-100; natural classificado como PE 100 de LyondellBasell; Taxa de Fluxo em Fusão: 190°C/5,0 Kg: 0,23g/10 min (ISO 1133); Densidade: 0,95g/cm3 (ISO 1183)) e os aditivos listados na tabela 1 são misturados com um dispositivo misturador de alta velocidade Mixaco Lab CM12.[0087] Preparation of test samples: A mixture of an unstabilized high-density polyethylene (HD-PE; Hostalen®CRP-100; natural classified as PE 100 from LyondellBasell; Melt Flow Rate: 190°C/5. 0 Kg: 0.23g/10 min (ISO 1133); Density: 0.95g/cm3 (ISO 1183)) and the additives listed in table 1 are mixed with a Mixaco Lab CM12 high-speed mixing device.

[0088] A formulação completa obtida é então composta em uma extrusora Collin 25X42D a 240°C e, então moldada por injeção em uma máquina de moldagem por injeção Engel HL65 a 230°C.[0088] The complete formulation obtained is then compounded in a Collin 25X42D extruder at 240°C and then injection molded in an Engel HL65 injection molding machine at 230°C.

[0089] As placas moldadas por injeção 40 mm x 60 mm x 2 mm são expostas à água clorada sob os seguintes parâmetros: 40°C, pH 7, 2 mg/L de NaClO e 50 L/horas. Os parâmetros medidos são valores OIT usando um instrumento DSC Q2000 von TA (Waters) a 200°C sob O2 após 0, 3 e 5 meses de exposição. Os resultados de depleção são listados na tabela 2. Tabela 1: Tabela 2: Valores OIT altos são desejados.[0089] The 40 mm x 60 mm x 2 mm injection molded plates are exposed to chlorinated water under the following parameters: 40°C, pH 7, 2 mg/L NaClO and 50 L/hours. The measured parameters are OIT values using a DSC Q2000 von TA instrument (Waters) at 200°C under O2 after 0, 3 and 5 months of exposure. Depletion results are listed in table 2. Table 1: Table 2: High OIT values are desired.

Claims (10)

1. Tubo de polietileno compreendendo os componentes A) e B), caracterizado pelo fato de que o componente A) é um estabilizador de luz de amina impedida contendo um resíduo de triazina, o componente B) é uma hidrotalcita natural ou sintética e a razão em peso de componente A) para componente B) é 1:10 a 10:1, em que o componente A) é um composto da fórmula (A-I-1) com a1 sendo 2 a 10; em que compreende adicionalmente o componente C) que é um antioxidante fenólico, e em que o antioxidante fenólico é 1,3,5-tris(3,5-di-terc-butil-4- hidroxibenzil)-2,4,6-trimetilbenzeno, etileno bis[3,3-bis(3-terc-butil-4- hidroxifenil)butirato] ou 1,3,5-tris(3,5-di-terc-butil-4-hidroxibenzil)- isocianurato.1. Polyethylene pipe comprising components A) and B), characterized in that component A) is a hindered amine light stabilizer containing a triazine residue, component B) is a natural or synthetic hydrotalcite and the reason by weight of component A) to component B) is 1:10 to 10:1, where component A) is a compound of the formula (AI-1) with a1 being 2 to 10; wherein it further comprises component C) which is a phenolic antioxidant, and wherein the phenolic antioxidant is 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4,6- trimethylbenzene, ethylene bis[3,3-bis(3-tert-butyl-4-hydroxyphenyl)butyrate] or 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-isocyanurate. 2. Tubo de polietileno de acordo com a reivindicação 1, caracterizado pelo fato de que o componente B) é pelo menos um carbonato e hidróxido de alumínio e magnésio hidratados ou carbonato e hidróxido de alumínio e zinco hidratados.2. Polyethylene pipe according to claim 1, characterized by the fact that component B) is at least one hydrated aluminum and magnesium carbonate and hydroxide or hydrated aluminum and zinc carbonate and hydroxide. 3. Tubo de polietileno de acordo com as reivindicações 1 e 2, caracterizado pelo fato de que compreende adicionalmente um componente D) que é pelo menos um composto selecionado dentre o grupo que consiste de fosfitos, fosfonitos, hidroxilaminas, tocoferóis e acetatos de tocoferol.3. Polyethylene tube according to claims 1 and 2, characterized in that it additionally comprises a component D) which is at least one compound selected from the group consisting of phosphites, phosphonites, hydroxylamines, tocopherols and tocopherol acetates. 4. Tubo de polietileno de acordo com a reivindicação 3, caracterizado pelo fato de que o componente D) é um fosfito, preferivelmente tris(2,4-di-terc-butilfenil) fosfito, [3,3’,5,5’-tetra-terc.butil-1,1’bifenil-2,2’-di- il]-[3-(3-metil-4-hidroxi-5-terc.butil-fenil)-propil]-fosfito, [2,2’-etileno-bis- (4,6-di-terc.butil-fenil)-1,1’-di-il]-[1,6-dimetil-4-(5,7-di-terc.butil)-3H-1- benzofuran-2-ona)-fenil]-fosfito, [2,2’-etileno-bis-(4,6-di-terc.butil-fenil)- 1,1’-di-il]-[1-metil-6-terc.butil-4-(5,7-di-terc.butil)-3H-1-benzofuran-2-ona)- fenil]-fosfito ou 6-[3-(3-terc-butil-4-hidroxi-5-metilfenil)propoxi]-2,4,8,10- tetra-terc-butildibenzo[d,f][1,3,2]dioxafosfepina.4. Polyethylene tube according to claim 3, characterized by the fact that component D) is a phosphite, preferably tris(2,4-di-tert-butylphenyl) phosphite, [3,3',5,5' -tetra-tert.butyl-1,1'biphenyl-2,2'-di-yl]-[3-(3-methyl-4-hydroxy-5-tert.butyl-phenyl)-propyl]-phosphite, [ 2,2'-ethylene-bis-(4,6-di-tert.butyl-phenyl)-1,1'-di-yl]-[1,6-dimethyl-4-(5,7-di-tert .butyl)-3H-1- benzofuran-2-one)-phenyl]-phosphite, [2,2'-ethylene-bis-(4,6-di-tert.butyl-phenyl)- 1,1'-di -yl]-[1-methyl-6-tert.butyl-4-(5,7-di-tert.butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite or 6-[3- (3-tert-butyl-4-hydroxy-5-methylphenyl)propoxy]-2,4,8,10-tetra-tert-butyldibenzo[d,f][1,3,2]dioxafosphepine. 5. Tubo de polietileno de acordo com qualquer uma das reivindicações 1 a 4, reivindicação 1, caracterizado pelo fato de que compreende adicionalmente um pigmento, preferivelmente um pigmento azul.5. Polyethylene tube according to any one of claims 1 to 4, claim 1, characterized in that it additionally comprises a pigment, preferably a blue pigment. 6. Tubo de polietileno de acordo com qualquer uma das reivindicações 1 a 5, caracterizado pelo fato de que o polietileno é selecionado dentre polietileno de alta densidade (HD-PE), polietileno de média densidade (MD-PE), polietileno de baixa densidade (LD-PE), polietileno de baixa densidade linear (LLD-PE), polietileno metaloceno, polietileno reticulado (PE-X), polietileno reciclado, polietileno bimodal e misturas de polietilenos.6. Polyethylene pipe according to any one of claims 1 to 5, characterized in that the polyethylene is selected from high-density polyethylene (HD-PE), medium-density polyethylene (MD-PE), low-density polyethylene (LD-PE), linear low density polyethylene (LLD-PE), metallocene polyethylene, cross-linked polyethylene (PE-X), recycled polyethylene, bimodal polyethylene and polyethylene mixtures. 7. Tubo de polietileno de acordo com qualquer uma das reivindicações 1, 5 ou 6, caracterizado pelo fato de que compreende os componentes (A), (B), (C) e (D), em que o componente (A) é com a1 sendo 2 a 10, componente (B) é uma hidrotalcita natural ou sintética, componente (C) é 1,3,5-tris(3,5-di-terc-butil-4-hidroxibenzil)- 2,4,6-trimetilbenzeno, e componente (D) é tris[2,4-di-terc-butilfenil]fosfito.7. Polyethylene tube according to any one of claims 1, 5 or 6, characterized in that it comprises components (A), (B), (C) and (D), wherein component (A) is with a1 being 2 to 10, component (B) is a natural or synthetic hydrotalcite, component (C) is 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)- 2,4, 6-trimethylbenzene, and component (D) is tris[2,4-di-tert-butylphenyl]phosphite. 8. Tubo de polietileno de acordo com qualquer uma das reivindicações 1 a 7, caracterizado pelo fato de que está em contato com água clorada ou não clorada.8. Polyethylene pipe according to any one of claims 1 to 7, characterized by the fact that it is in contact with chlorinated or non-chlorinated water. 9. Uso de uma mistura contendo os componentes A) e B) em uma razão em peso de 1:10 a 10:1 como definido na reivindicação 1, caracterizado pelo fato de que é para estabilizar um tubo de polietileno.9. Use of a mixture containing components A) and B) in a weight ratio of 1:10 to 10:1 as defined in claim 1, characterized by the fact that it is to stabilize a polyethylene pipe. 10. Método para estabilizar um tubo de polietileno, caracterizado pelo fato de que compreende incorporar no polietileno os componentes A) e B) em uma razão em peso de 1:10 a 10:1 como definido na reivindicação 1.10. Method for stabilizing a polyethylene tube, characterized by the fact that it comprises incorporating components A) and B) into the polyethylene in a weight ratio of 1:10 to 10:1 as defined in claim 1.
BR112019027881-8A 2017-07-06 2018-07-03 POLYETHYLENE TUBE, USE OF A MIXTURE, AND METHOD FOR STABILIZING A POLYETHYLENE TUBE BR112019027881B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP17180079 2017-07-06
EP17180079.0 2017-07-06
PCT/EP2018/067893 WO2019007935A1 (en) 2017-07-06 2018-07-03 A polyethylene pipe

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Publication Number Publication Date
BR112019027881A2 BR112019027881A2 (en) 2020-07-07
BR112019027881B1 true BR112019027881B1 (en) 2024-06-04

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