Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
  • C08L75/04—Polyurethanes
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G18/40—High-molecular-weight compounds
  • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/16—Nitrogen-containing compounds
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/16—Nitrogen-containing compounds
  • C08K5/20—Carboxylic acid amides
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/16—Nitrogen-containing compounds
  • C08K5/34—Heterocyclic compounds having nitrogen in the ring
  • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
  • C08K5/3432—Six-membered rings
  • C08K5/3435—Piperidines
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
  • C08K5/005—Stabilisers against oxidation, heat, light, ozone
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/04—Oxygen-containing compounds
  • C08K5/13—Phenols; Phenolates
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/04—Oxygen-containing compounds
  • C08K5/13—Phenols; Phenolates
  • C08K5/134—Phenols containing ester groups
  • C08K5/1345—Carboxylic esters of phenolcarboxylic acids

Definitions

• the present invention pertains to compositions comprising a polyether polyol, a polyester polyol or a polyurethane susceptible to light induced degradation, and a mixture of at least two different light stabilizers, one of them being a specific UV-absorber and/or hindered amine light stabilizer.
• DE 101 48 702 A1 pertains to stabilizer blends comprising an antioxidant, a HALS compound, a UV-absorber and a phosphorus compound.
• the initial yellowness of thermoplastic polyurethane stabilized with such a blend of stabilizers is not so great.
• WO 03/095543 relates to stabilizer mixtures for polymer substrates comprising benzylidene- bis-malonates and at least one compound selected from the group consisting of UV- absorbers, hindered amine stabilizers, sterically hindered phenols, organophosphines, organophosphites and organophosphonites.
• stabilizer mixtures provide protection of polymeric substrates against the damaging influence of light exposure by long term storage of polymers.
• EP 0714931 A discloses a mixture of Tinuvin® 312, Tinuvin® 770 and Chimassorb® 81 in a polyurethane.
• WO 2004/068217 A describes a polyurethane composition comprising Tinuvin® 144, Tinuvin® 765 and Irganox® 1010.
• WO 03/078148 A relates to a polyurethane composition comprising Tinuvin® 144, Tinuvin® 765 and Uvinul® 3040.
• the polyether polyol, polyester polyol or polyurethane compositions according to the present invention have an excellent initial color after processing, good light stability and also good gas fading resistance.
• the present invention pertains to a composition
• a composition comprising
• R 1 and R 2 are each independently C r C 4 alkyl or Ci-C 4 alkyoxy
• component (c) is not a compound of formula (A)-(D)
• composition of this invention must contain either (i) a UV- absorber of formula (I) and a hindered amine of formula (II); or (ii) a UV-absorber of formula (I) and a UV-absorber or/and a hindered amine different from formulae (I) and (II); or (iii) a hindered amine of formula (II) and a UV-absorber or/and a hindered amine different from formulae (I) and (II).
• a UV- absorber of formula (I) and a hindered amine of formula (II) or
• a UV-absorber of formula (I) and a UV-absorber or/and a hindered amine different from formulae (I) and (II) or
• composition that comprises as component (c) a hindered amine light stabilizer of formula HA-1 to HA-11 or a UV-absorber of formula UV-1 to UV-8 as defined below.
• composition comprising as component (c) a hindered amine light stabilizer of formula HA-1 to HA-11 or a UV-absorber of formula UV-1 to UV-7.
• compositions of the instant invention preferably contain further additives.
• Such further additives may for example be:
• Alkylated monophenols for example 2,6-di-tert-butyl-4-methylphenol J 2-tert-butyl-4,6-di- methylphenol, 2,6-di-tert-butyl-4-ethylphenol, 2 J 6-di-tert-butyl-4-n-butylphenol ] 2,6-di-tert-bu- tyl-4-isobutyl phenol, 2,6-dicyclopentyl-4-methylphenol, 2-( ⁇ -methylcyclohexyl)-4,6-dimethyl- phenol, 2,6-dioctadecyl-4-methylphenol J 2,4,6-tricyclohexylphenol, 2,6-di-tert-butyl-4-meth- oxymethylphenol, nonylphenols which are linear or branched in the side chains, for example 2 I 6-di-nonyl-4-methylphenol, 2 J 4-dimethyl-6-(1'-methylunde
• Alkylthiomethylphenols for example 2,4-dioctylthiomethyl-6-tert-butylphenol, 2,4-dioctyl- thiomethyI-6-methylphenol, 2,4-dioctylthiomethyl-6-ethylphenol, 2,6-di-dodecylthiomethyl-4- nonylphenol, 2,4-dodecylthiomethyI-6-tert-butylphenol, 2,4-dodecylthiomethyl-6-methyl- phenol.
• Hydroquinones and alkylated hvdroquinones for example 2,6-di-tert-butyl-4-methoxy- phenol, 2,5-di-tert-butylhydroquinone, 2,5-di-tert-amylhydroquinone, 2,6-diphenyl-4-octade- cyloxyphenol, 2,6-di-tert-butylhydroquinone, 2,5-di-tert-butyl-4-hydroxyanisole, 3,5-di-tert-bu- tyl-4-hydroxyanisole, 3,5-di-tert-butyl-4-hydroxyphenyl stearate, bis(3,5-di-tert-butyl-4-hy- droxyphenyl) adipate.
• 2,6-di-tert-butyl-4-methoxy- phenol 2,5-di-tert-butylhydroquinone, 2,5-di-ter
• Tocopherols for example Ortocopherol, ⁇ -tocopherol, ⁇ -tocopherol, ⁇ -tocopherol and mixtures thereof (vitamin E).
• Hydroxylated thiodiphenyl ethers for example 2,2 I -thiobis(6-tert-butyl-4-methylphenol) I 2,2 1 -thiobis(4-octylphenol), 4 ] 4'-thiobis(6-tert-butyl-3-methylphenol) J 4 1 4"-thiobis(6-tert-butyl-2- methylphenol), 4,4'-thiobis(3 J 6-di-sec-amylphenol), 4,4'-bis(2,6-dimethyl-4-hydroxyphenyl)- disulfide.
• Alkylidenebisphenols for example 2 1 2'-methylenebis(6-tert-butyl-4-methylphenol) ] 2,2'- methylenebis(6-tert-butyl-4-ethylphenol), 2,2'-methylenebis[4-methyl-6-( ⁇ -methylcyclohexyl)- phenol], 2,2 1 -methylenebis(4-methyl-6-cyclohexylphenol), 2,2'-methylenebis(6-nonyl-4- methylphenol), 2,2'-methylenebis(4 ) 6-di-tert-butylphenoI), 2,2 1 -ethylidenebis(4,6-di-tert-butyl- phenol), 2,2'-ethylidenebis(6-tert-butyl-4-isobutylphenol), 2,2'-methylenebis[6-( ⁇ -methylben- zyl)-4-nonylphenol], 2,2'-methylenebis[6-methylenebis
• Q-, N- and S-benzyl compounds for example S ⁇ .S-tetra-tert-butyl- ⁇ '-dihydroxydi- benzyl 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-hydroxy- benzyl)sulfide, isooctyl-S. ⁇ -di-tert-butyM-hydroxybenzylmercaptoacetate.
• hydroxybenzylated malonates for example dioctadecyl-2,2-bis(3,5-di-tert-butyl-2-hy- droxybenzyl)malonate, di-octadecyl-2-(3-tert-butyl-4-hydroxy-5-methylbenzyl)malonate J di- dodecylmercaptoethyl-2,2-bis(3 ] 5-di-tert-butyI-4-hydroxybenzyl)malonate ] bis[4-(1 , 1 ,3,3-te- tramethylbutyl)phenyl]-2,2-bis(3 J 5-di-tert-butyl-4-hydroxybenzyl)malonate.
• dioctadecyl-2,2-bis(3,5-di-tert-butyl-2-hy- droxybenzyl)malonate di-octadecyl-2-(3-tert-butyl
• Aromatic hydroxybenzyl compounds for example 1,3 J 5-tris(3,5-di-tert-butyl-4-hydroxy- benzyl ⁇ . ⁇ -trimethylbenzene, 1 ) 4-bis(3 l 5-di-tert-butyl-4-hydroxybenzyl)-2 l 3 J 5 ] 6-tetrame- thylbenzene, 2,4 J 6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)phenol.
• Triazine compounds for example 2,4-bis(octylmercapto)-6-(3,5-di-tert-butyl-4-hydroxy- anilino)-1 ,3,5-triazine, 2-octylmercapto-4,6-bis(3,5-di-tert-butyl-4-hydroxyanilino)-1 ,3,5-tri- azine, 2-octylmercapto-4 l 6-bis(3 J 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 1 3,5-tris(3 1 5-di-tert-butyl-4-hydroxyben- zyl)isocyanurate, 1 ,3,5-tris(4-tert-butyl-3-hydroxy-2 I 6-dimethylbenzyl)isocyanur
• Benzylphosphonates for example dimethyl-2,5-di-tert-butyl-4-hydroxybenzylphospho- nate, diethyl-S.S-di-tert-butyM-hydroxybenzylphosphonate, dioctadecyl3,5-di-tert-butyl-4-hy- droxybenzylphosphonate, dioctadecyl- ⁇ -tert-butyl ⁇ -hydroxy-S-methylbenzylphosphonate, the calcium salt of the monoethyl ester of 3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid.
• Acylaminophenols for example 4-hydroxylauraniiide, 4-hydroxystearanilide, octyl N- (3,5-di-tert-butyl-4-hydroxyphenyl)carbamate.
• esters of ⁇ -(3,5-di-tert-butyl-4-hvdroxyphenyl)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, diethy- lene glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate ] N,N'-bis(hy- droxyethyl)oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylol- propane, 4-hydroxymethyI-1
• esters of ⁇ -(5-tert-butyl-4-hvdroxy-3-methylphenv ⁇ propionic acid with mono- or poly ⁇ hydric alcohols e.g. with methanol, ethanol, n-octanol, i-octanol, octadecanol, 1,6-hexanedi ⁇ ol, 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, trimethyl- olpropane, 4-hydroxymethyl-1 -phospha-2,
• esters of ⁇ -(3,5-dicvclohexyl-4-hvdroxyphenvDpropionic ⁇ cid with mono- or polyhydric alcohols e.g. with methanol, ethanol, octanol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene glycol, 1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, tri ⁇ ethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N'-bis(hydroxyethyl)ox- amide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylol pro pane, 4-hy- droxymethyl-1 -phospha- ⁇ j-trioxabi
• esters of 3,5-di-tert-butyl-4-hvdroxyphenyl acetic acid with mono- or polyhydric alco ⁇ hols e.g. 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)ox- amide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hy- droxymethyl-i-phospha ⁇ . ⁇ .T-trioxabicyclo ⁇
• Aminic antioxidants for example N.N'-di-isopropyl-p-phenylenediamine, N.N'-di-sec-bu- tyl-p-phenylenediamine, N ] N l -bis(1,4-dimethylpentyl)-p-phenylenediamine, N,N'-bis(1-ethyl-3- methylpentyl)-p-phenylenediamine, N.N'-bisO -methylheptyl)-p-phenylenediamine, N,N'-dicy- clohexyl-p-phenylenediamine, N, N'-diphenyl-p-phe ⁇ ylenediamine, N , N'-bis(2-naphthyl)-p- phenylenediamine, N-isopropyl-N'-phenyl-p-phenylenediamine, N-(1 ,3-di
• 2-(2'-Hvdroxyphenyl)benzotriazoles for example 2-(2'-hydroxy-5'-methylphenyl)benzo- triazole, 2-(3 1 J 5'-di-tert-butyl-2 I -hydroxyphenyl)benzotriazole J 2-(5'-tert-butyl-2 1 -hydroxyphe- nyl)benzotriazole, 2-(2 l -hydroxy-5'-(1.1,3,3-tetramethylbutyl)phenyl)benzotriazole, 2-(3',5'-di- tert-butyl-2'-hydroxyphenyl)-5-chlorobenzotriazole, 2-(3 I -tert-butyl-2 1 -hydroxy-5'-methylphe- nyl)-5-chlorobenzotriazole, 2-(3'-sec-butyl-5 I -tert-butyl-2 1 -hydroxyphenyl)benzotriazole,
• azol-2-ylphenyl 2-[2 l -hydroxy-3 l -( ⁇ , ⁇ -dimethylbenzyl)-5 l -(1,1 J 3,3-tetramethylbutyl)phenyl]- benzotriazole; 2-[2'-hydroxy-3'-(1 , 1 ,3 ] 3-tetramethylbutyl)-5'-( ⁇ , ⁇ -dimethylbenzyl)phenyl]ben- zotriazole.
• Esters of substituted and unsubstituted benzoic acids for example 4-tert-butylphenyl salicylate, phenyl salicylate, octylphenyl salicylate, dibenzoyl resorcinol, bis(4-tert-butylben- zoyl)resorcinol, benzoyl resorcinol, 2,4-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzo- ate, hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate, octadecyl 3,5-di-tert-butyl-4-hydroxyben- zoate, 2-methyl-4,6-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate.
• Acrylates for example ethyl ⁇ -cyano- ⁇ , ⁇ -diphenylacrylate, isooctyl ⁇ -cyano- ⁇ , ⁇ -diphe- nylacrylate, methyl ⁇ -carbomethoxycinnamate, methyl ⁇ -cyano- ⁇ -methyl-p-methoxycinna- mate, butyl ⁇ -cyano- ⁇ -methyl-p-methoxycinnamate, methyl ⁇ -carbomethoxy-p-methoxycin- namate and N-( ⁇ -carbomethoxy- ⁇ -cyanovinyl)-2-methylindoline.
• Nickel compounds for example nickel complexes of 2,2 l -thiobis[4-(1,1,3,3-tetramethyl- butyl)phenol], such as the 1:1 or 1:2 complex, with or without additional ligands such as n- butylamine, triethanolamine or N-cyclohexyldiethanolamine, nickel dibutyldithiocarbamate, nickel salts of the monoalkyl esters, e.g. the methyl or ethyl ester, of 4-hydroxy-3,5-di-tert- butylbenzylphosphonic acid, nickel complexes of ketoximes, e.g. of 2-hydroxy-4-methylphe- riylundecylketoxime, nickel complexes of 1-phenyl-4-lauroyl-5-hydfbxypyrazole, with or with ⁇ out additional ligands.
• additional ligands such as n- butylamine, triethanolamine or N-cyclohexyldi
• Further hindered amine light stabilizers for example bis(2,2,6,6-tetramethyl-4- piperidyl)succinate, bis(1-octyloxy-2,2,6 I 6-tetramethyl-4-piperidyl)sebacate, the condensate of 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid, linear or cyclic condensates of N,N I -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 '
• Oxamides for example 4,4'-dioctyloxyoxanilide, 2,2 1 -diethoxyoxanilide, 2,2'-dioctyloxy- 5,5-di-tert-butoxanilide, 2 J 2'-didodecyloxy-5,5'-di-tert-butoxanilide, N,N'-bis(3- dimethylaminopropyl)oxamide, 2-ethoxy-5-tert-butyl-2'-ethoxanilide and its mixture with 2- ethoxy ⁇ '-ethyl- ⁇ /l'-di-tert-butoxanilide, mixtures of o- and p-methoxy-disubstituted oxanilides and mixtures of o- and p-ethoxy-disubstituted oxanilides.
• Metal deactivators for example N,N'-diphenyloxamide, N-salicylal-N'-salicyloyl hydrazine, N,N'-bis(salicyloyl)hydrazine 1 N,N I -bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)hydrazine, 3-salicyloylamino-1,2,4-triazole, bis(benzylidene)oxalyl dihydrazide, oxanilide, isophthaloyl dihydrazide, sebacoyl bisphenylhydrazide, N.N'-diacetyladipoyl dihydrazide, N,N'-bis(salicyl- oyl)oxalyl dihydrazide, N,N'-bis(salicyloyl)thiopropionyl dihydrazide.
• Phosphites and phosphonites for example triphenyl phosphite, diphenylalkyl phosphites, phenyldialkyl phosphites, tris(nonylphenyl) phosphite, trilauryl phosphite, trioctadecyl phos- phite, 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)pentaerythri
• diphosphite diisodecyloxypentaerythritol diphosphite, bis(2,4-di-tert-butyl-6-methylphenyl)- pentaerythritol diphosphite, bis(2,4,6-tris(tert-butylphenyl)pentaerythritol diphosphite, tristea- ryl sorbitol triphosphite, tetrakis(2,4-di-tert-butylphenyl) 4,4'-biphenylene diphosphonite, 6- isooctyloxy-2,4,8, 10-tetra-tert-butyl-12H-dibenz[d,g]-1 ,3,2-dioxaphosphocin, bis(2,4-di-tert- butyl-6-methylphenyl)methyl phosphite, bis(2,4-di-tert-butyl-6-methylphenyl)ethyl
• Hvdroxylamines for example N,N-dibenzylhydroxylamine, N,N-diethylhydroxylamine, N 1 N- dioctylhydroxylamine, N,N-dilaurylhydroxylamine, N,N-ditetradecylhydroxylamine, N, N- dihexadecylhydroxylamine, N.N-dioctadecylhydroxylamine, N-hexadecyl-N-octadecylhydrox- ylamine, N-heptadecyl-N-octadecylhydroxylamine, N.N-dialkylhydroxylamine derived from hydrogenated tallow amine.
• Nitrones for example N-benzyl-alpha-phenylnitrone, N-ethyl-alpha-methylnitrone, N-octyl- alpha-heptylnitrone, N-lauryl-alpha-undecylnitrone, N-tetradecyl-alpha-tridecylnitrone, N- hexadecyl-alpha-pentadecylnitrone, N-octadecyl-alpha-heptadecylnitrone, N-hexadecyl-al- pha-heptadecylnitrone, N-ocatadecyl-alpha-pentadecylnitrone, N-heptadecyl-alpha-hepta- decylnitrone, N-octadecyl-alpha-hexadecylnitrone, nitrone derived from N.N
• Thiosynergists for example dilauryl thiodipropionate or distearyl thiodipropionate.
• Peroxide scavengers for example esters of ⁇ -thiodipropionic acid, for example the Iauryl, stearyl, myristyl or tridecyl esters, mercaptobenzimidazole or the zinc salt of 2-mercapto- benzimidazole, zinc dibutyldithiocarbamate, dioctadecyl disulfide, pentaerythritol tetrakis( ⁇ - dodecylmercapto)propionate.
• esters of ⁇ -thiodipropionic acid for example the Iauryl, stearyl, myristyl or tridecyl esters
• mercaptobenzimidazole or the zinc salt of 2-mercapto- benzimidazole zinc dibutyldithiocarbamate
• dioctadecyl disulfide pentaerythritol tetrakis( ⁇ - dodecyl
• Basic co-stabilisers for example melamine, polyvinylpyrrolidone, dicyandiamide, triallyl cyanurate, urda derivatives, hydrazine derivatives, amines, polyamides, polyurefHanes, alkali metal salts and alkaline earth metal salts of higher fatty acids, for example calcium stearate, zinc stearate, magnesium behenate, magnesium stearate, sodium ricinoleate and potassium palmitate, antimony pyrocatecholate or zinc pyrocatecholate.
• Basic co-stabilisers for example melamine, polyvinylpyrrolidone, dicyandiamide, triallyl cyanurate, urda derivatives, hydrazine derivatives, amines, polyamides, polyurefHanes, alkali metal salts and alkaline earth metal salts of higher fatty acids, for example calcium stearate, zinc stearate, magnesium behenate, magnesium stearate
• Fillers and reinforcing agents for example calcium carbonate, silicates, glass fibres, glass bulbs, asbestos, talc, kaolin, mica, barium sulfate, metal oxides and hydroxides, carbon black, graphite, wood flour and flours or fibers of other natural products, synthetic fibers.
• additives for example plasticisers, lubricants, emulsifiers, pigments, rheology additives, catalysts, flow-control agents, optical brighteners, flameproofing agents, antistatic agents and blowing agents.
• Anti-gas fading agents for example 1 ,1 , ⁇ 14etramethyI-4,4'-(methylene-di-p- phenylene)disemicarbazide; 1,6-hexamethylene bis(N,N-dimethylsemicarbazide); 11-[6- t[(2,2-dimethylhydrazino)carbonyl]amino]hexyl]-10, 12-dioxo-, bis(2,2-dimethylhydrazide).
• the further additives are added, for example, in concentrations of 0.01 to 10%, relative to the total weight of the composition of this invention.
• such further stabilizers are antioxidants, further light-stabilizers and/or processing stabilizers.
• Such further stabilizers are phenolic and/or aminic antioxidants, further hindered amine light stabilizers, further UV-absorbers, phosphites, phosphonites and/or benzofuranones.
• compositions where the further stabilizers are further hindered amine light stabilizers, further UV-absorbers, phenolic antioxidants and/or phosphites.
• component (b) is a combination of a UV- absorber of formula (I) and a hindered amine light stabilizer of formula (II).
• compositions wherein the UV-absorber of formula (I) is a compound of formula (Ia).
• An embodiment of the present invention is a composition, wherein component (b) is a UV- absorber of formula (I) and component (c) is a hindered amine light stabilizer.
• Another embodiment of the present invention is a composition, wherein component (b) is a hindered amine light stabilizer of formula (II) and component (c) is a UV-absorber.
• compositions wherein the overall amount of component (b) and (c) is 0.01% to 5%, based on the weight of the composition.
• compositions wherein the overall amount of component (b) and (c) is 0.5% to 2%, based on the weight of the composition.
• compositions wherein the ratio of components (b) : (c) or of the compounds of formulae (I) : (II) respectively is from 10:1 to 1:10.
• compositions wherein the ratio of components (b) : (c) or of the compounds of formulae (I) : (II) respectively is from 3:1 to 1:3.
• compositions according to this invention do not contain benzylidene-bis- malonates.
• benzylidene-bis-malonates are disclosed in WO 03/095543.
• the present invention also pertains to the use of a mixture of component (b) and (c) as defined herein as stabilizer for a polyether polyol, a polyester polyol or a polyurethane against degradation by light, oxygen and/or heat.
• the present invention also pertains to a process for stabilizing a polyether polyol, a polyester polyol or a polyurethane against degradation by light, oxygen and/or heat, which process comprises incorporating into said material a mixture of component (b) and (c) as defined herein.
• the further additives and/or stabilizers may be as defined herein.
• Hindered amine light stabilizers are preferably compounds containing at least one group of formula (III)
• Gi and G 2 are independently alkyl of 1 to 4 carbon atoms, or G 1 and G 2 together are pentamethylene; preferably G 1 and G 2 are each methyl.
• the hindered amine light stabilizers useful as component (c) may be the ones mentioned in 2.6. herein above and the ones disclosed in WO 01/62836, WO 02/02706 and DE 10008367, which are incorporated here by reference.
• Preferred hindered amine light stabilizers are compounds of formulae (100)-(104) or 7-Oxa-3,20-diazadispiro[5.1.11.2]heneicosan-21-one, 2,2,4,4-tetramethyl-20- (oxiranylmethyl)-, polymer with (chloromethyl)oxirane;
• E is hydrogen, CrC 18 alkyl, CrCi 8 alkoxy or C r Ci 8 alkoxy substituted by 1 OH;
• R 3 is C r C 2 5alkyl or -CO-Ri 0 ; when n ! is 2, R 3 is C 2 -C ⁇ aI kylene or -CO-Rn -CO-; Rio is Ci-C 25 alkyl; Rn is C 2 -Ci 4 -alkylene;
• R 5 is hydrogen or CrC ⁇ alkyl
• R 4 is the group T 1 ,
• n 4 is 2 to 8, n 5 is 1 to 50;
• R 6 is morpholino, piperidino, 1-piperizinyl, alkylamino of 1 to 8 carbon atoms, especially branched alkylamino of 3 to 8 carbon atoms such as tert-octylamino, -N(alkyl)T 2 with alkyl of 1 to 8 carbon atoms, or -N(alkyl) 2 of 2 to 16 carbon atoms,
• R 7 is hydrogen, acyl of 2 to 4 carbon atoms, carbamoyl substituted by alkyl of 1 to 4 carbon atoms, s-triazinyl substituted once by chlorine and once by R 6 , or s-triazinyl substituted twice by R 6 with the condition that the two Resubstituents may be different;
• R 8 is chlorine, amino substituted by alkyl of 1 to 8 carbon atoms or by T 2 , -N(alkyl)T 2 with alkyl of 1 to 8 carbon atoms, -N(alkyl) 2 of 2 to 16 carbon atoms, or the group T 3 , T 3 is
• Ri 2 is hydrogen, acyl of 2 to 4 carbon atoms, carbamoyl substituted by alkyl of 1 to 4 carbon atoms, s-triazinyl substituted twice by -N(alkyl) 2 of 2 to 16 carbon atoms or s-triazinyl substituted twice by -N(alkyl)T 2 with alkyl of 1 to 8 carbon atoms;
• a 1 is hydrogen or Ci-C 4 alkyl
• a 2 is a direct bond or Ci-Ci O alkyiene
• a 3 is Ci-C 4 alkyl or Ci-C 4 alkoxy and n 6 is a number from 2 to 50, preferably 2 to 20;
• n 8 is 2 to 12.
• component (c) Of particular interest as component (c) are UV-absorbers of the hydroxyphenyl-triazine, benzotriazole, benzophenone, oxanilide, acrylate and cyanacrylate classes.
• the hydroxyphenyl triazine UV absorber usually is selected from known compounds, described e.g. in GB-A-975966, EP-A-434608, US-4619956, US-5298067, EP-A-530135, EP-A-520938, EP-A-531258, US-5556973, US-5959008, US-6184375, US-6117997; preferred are compounds as described in US-5998116, US-6255483, US-6060543.
• hydroxyphenyl triazine UV absorbers are compounds conforming to formula (200), (201) or (202)
• X and Y are independently phenyl, naphthyl, or said phenyl or said naphthyl substituted by one to three alkyl of 1 to 6 carbon atoms, by halogen, by hydroxy or by alkoxy of 1 to 6 carbon atoms or by mixtures thereof; or are independently Z 1 or Z 2 ;
• Ri 3 is hydrogen, straight or branched chain alkyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, phenylalkyl of 7 to 15 carbon atoms, halogen, -SRi 7 , -SORi 7 or -SO 2 R I7 ; or said alkyl, said cycloalkyl or said phenylalkyl substituted by one to three halogen, -Ri 8 , -ORi 9 , -N(Ri 9 ) 2 , -CORi 9 , -COORi 9 , -OCORi 9 , -CN, -NO 2 , -SR 19 , -SOR 19 , -SO 2 Ri 9 or -P(O)(ORi 9 ) 2 , morpholinyl, piperidinyl, 2,2,6,6-tetramethylpiperidinyl, piperazinyl or N-methylpiperidinyl groups or combinations thereof;
• Ri7 is alkyl of 1 to 20 carbon atoms, alkenyl of 3 to 18 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, phenylalkyl of 7 to 15 carbon atoms, aryl of 6 to 10 carbon atoms or said aryl substituted by one or two alkyl of 1 to 4 carbon atoms;
• Ri8 is aryl of 6 to 10 carbon atoms or said aryl substituted by one to three halogen, alkyl of 1 to 8 carbon atoms, alkoxy of 1 to 8 carbon atoms or combinations thereof; cycloalkyl of 5 to 12 carbon atoms; phenylalkyl of 7 to 15 carbon atoms or said phenylalkyl substituted on the phenyl ring by one to three halogen, alkyl of 1 to 8 carbon atoms, alkoxy of 1 to 8 carbon atoms or combinations thereof; or straight or branched chain alkenyl of 2 to 18 carbon atoms;
• R-ig is defined as is Ri 8 ; or R 19 is also hydrogen or straight or branched chain alkyl of 1 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms; or R 19 is a group for formula
• T is hydrogen, oxyl, hydroxyl, -OT 4 , alkyl of 1 to 24 carbon atoms, said alkyl substituted by one to three hydroxy; benzyl or alkanoyl of 2 to 18 carbon atoms;
• T 4 is alkyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, alkenyl of 2 to 24 carbon atoms, cycloalkenyl of 5 to 12 carbon atoms, phenylalkyl of 7 to 15 carbon atoms, a radical of a saturated or unsaturated bicyclic or tricyclic hydrocarbon of 7 to 12 carbon atoms or aryl of 6 o 10 carbon atoms or said aryl substituted by one to three alkyl of 1 to 4 carbon atoms;
• R 21 is straight or branched chain alkyl of 1 to 18 carbon atoms, straight or branched chain alkenyl of 2 to 12 carbon atoms, phenoxy, alkylamino of 1 to 12 carbon atoms, arylamino of 6 to 12 carbon atoms, -R 22 COOH or -NH-R 23 -NCO;
• R 22 is alkylene of 2 to 14 carbon atoms or phenylene
• R 23 is alkylene of 2 to 24 carbon atoms, phenylene, tolylene, diphenylmethane or a group
• Ri 5 and R 13 " are the same or different and are as defined for R 13 ;
• R 14 , R ⁇ and R 14 " are the same or different and are as defined for R 14 ;
• Z 1 is a group of formula
• Z 2 is a group of formula
• R 2 6, R 2 7, R 2 8, R29, R30, R31 and R 32 are independently of one another hydrogen, hydroxy, cyano, alkyl of 1 to 20 carbon atoms, alkoxy of 1 to 20 carbon atoms, phenylalkyl of 7 to 15 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, cycloalkoxy of 5 to 12 carbon atoms, halogen, haloalkyl of 1 to 5 carbon atoms, sulfo, carboxy, acylamino of 2 to 12 carbon atoms, acyloxy of 2 to 12 carbon atoms, alkoxycarbonyl of 2 to 12 carbon atoms or aminocarbonyl; or R 26 and R27 or R 31 and R 32 together with the phenyl radical to which they are attached are a cyclic radical interrupted by one to three -O- or -NR 19 -.
• hydroxyphenyltriazines are the compounds (a1 ) - (a19) a1 ) 2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1 ,3,5-triazine, a2) 2-(2-hydroxy-4-octyloxyphenyl)-4 ) 6-bis(2,4-dimethylphenyl)-1,3,5-triazine, a3) 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1 ,3,5-triazine, a4) 2,4-bis(2-hydroxy-4-propyIoxyphenyl)-6-(2,4-dimethylphenyl)-1,3,5-triazine, a5) 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(4-methylphenyl)-1 ,3,5-triazine, a6) 2-(2-hydroxy-4-dodecyloxyphenyl)
• UV-absorber of the benzotriazole class are compounds of formula (206) and/or (207),
• R 33 is hydrogen, halogen, C r C 4 alkyl or C r C 8 alkoxy;
• R 34 is hydrogen, Ci-C 18 alkyl or d-C 8 alkyl substituted by phenyl;
• R 35 is CrCi 2 alkyl, -CH 2 CH 2 -CO-R 37 or C r C 8 alkyl substituted by phenyl;
• R 37 is a monovalent polyethylene oxide residue
• R 36 is a divalent polyethylene oxide residue
• benzotriazoles are the compounds (b1) - (b23) b1 ) 2-(2'-hydroxy-5'-methylphenyl)benzotriazole J b2) 2-(3',5 1 -di-tert-butyl-2 1 -hydroxyphenyl)benzotriazole J b3) 2-(5'-tert-butyl-2'-hydroxyphenyl)benzotriazole 1 b4) 2-(2'-hydroxy-5'-(1 , 1 ,3,3-tetramethylbutyl)phenyl)benzotriazole, b5) 2-(3 l ,5 1 -di-tert-butyl-2'-hydroxyphenyl)-5-chlorobenzotriazole J b6) 2-(3'-tert-butyl-2 I -hydroxy-5 1 -methylphenyl)-5-chlorobenzotriazole, b7) 2-(3 I -sec-butyl-5'-tert-butyl-2 l
• phenolic antioxidant may be a compound of formula (300), (301) or (302)
• R 38 and R 39 are independently C r C 8 alkyl, R 47 is d-C ⁇ alkyl; or the phenolic antioxidant may be any compound listed in items 1.1-1.17 in the list of stabilizers given above.
• the phosphite may be a compound of formula (400) or (401)
• R 40 . R4i > R42 and R 43 are independently CrC 8 alkyl; or R 40 and R 42 may independently be hydrogen; R 44 , R 4 5 and R ⁇ are independently hydrogen or C r C 8 alkyl; or the phosphite may be any phosphite compound listed in item 4 in the list of stabilizers given above.
• alkyl may comprise within the limits of the given number of carbon atoms, for example methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, 2-ethylbutyl, n- penlyl, isopentyl, 1-methylpentyl, 1,3-dimethylbutyl, n-hexyl, 1-methylhexyl, n-heptyl, 2- methylheptyl, 1,1,3,3-tetramethylbutyl, 1-methylheptyl, 3-methylheptyl, n-octyl, 2-ethylhexyl, 1,1,3-trimethyIhexyl, 1,1,3,3-tetramethylpentyl, nonyl, decyl, undecyl, 1-methylundecyl or dodecyl.
• alkylene comprises within the limits of the given number of carbon atoms, ⁇ or example methylene and the branched and unbranched isomers of ethylene, propylene, butylene, pentylene, hexylene, heptylene, octylene, nonylene, decyle ⁇ e, undecylene, dodecylene, tridecylene and tetradecylene.
• alkoxy may comprise within the limits of the given number of carbon atoms, for example methoxy and ethoxy and the branched and unbranched isomers of propoxy, butoxy, pentoxy, hexoxy, heptoxy, octoxy, nonoxy, decoxy, undecoxy, dodecoxy, tridecoxy, tetradecoxy, pentadecoxy, hexadecoxy, heptadecoxy and octadecoxy.
• halogen comprises for example chlorine, bromine and iodine.
• aryl comprises for example phenyl and naphthyl.
• alkenyl examples include vinyl, allyl, butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl and dodecenyl.
• hindered amine light stabilizers Of special interest are the following hindered amine light stabilizers:
• n 7 is 2 to 50, preferably 2 to 20, particular preference is given to the commercial product TINUVIN® 622.
• n 8 is 2 to 12; particular preference is given to the commercial product UVASORB® HA-88.
• n 9 is 2 to 50, preferably 2 to 20, the endgroups preferably being
• nio is 2 to 50, preferably 2 to 20, the endgroups preferably being
• 1I 11 is 2 to 50, preferably 2 to 2O 1 with the endgroups preferably being
• n 12 is 2 to 50, preferably 2 to 20, with the endgroups preferably being
• n 14 is 2 to 50, preferably 2 to 20, with the endgroups preferably being
• n-, 5 is 2 to 50, for example 2 to 25;
• the end group bonded to the nitrogen can be, for example, hydrogen and the end group bonded to the 2-hydroxypropylene radical can be, for example,
• UV-absorbers Of interest are the following UV-absorbers:
• UV-1) (TINUVIN® 234)
• UV-2) (TINUVIN® 328)
• UV-3) (TINUVIN® 571)
• n 13 is 2 to 2O 1 for example 3 to 10; preferably, this compound is a mixture of polyethylene glycol and mono- and diesters; particular preference is given to the commercial product T ⁇ NUVIN® 213.
• UV-5) (TINUVIN ⁇ 101)
• UV-6) (UVINUL® 3039)
• UV-8) (TINUVIN® 120)
• UV-absorbers UV-1 to UV-7 are of particular interest.
• the phenolic antioxidant is N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N
• phosphite is N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoe
• PHOS-1) (IRGAFOS® 126)
• Preferred embodiements of this invention are a polyether polyol, a polyester polyol or a polyurethane comprising one of the following blends of commercially available additives:
• Tinuvin® 234 / Tinuvin® 144 Tinuvin® 101 / Tinuvin® 144; Tinuvin® 312 / Tinuvin ® 144; Tinuvin® 120 / Tinuvin ® 144;
• a polyether polyol, a polyester polyol or a polyurethane comprising one of the following blends of commercially available additives: Tinuvin® 312 / Tinuvin® 144 Tinuvin® 312 / Tinuvin® 144 / Irganox® 1010; Tinuvin® 312 / Tinuvin® 144 / Irganox® 245; Tinuvin® 312 / Tinuvin® 144 / Irganox® 245 / Irgafos® 126; Tinuvin® 234 / Tinuvin® 144; Tinuvin® 101 / Tinuvin® 144;
• a polyether polyol, a polyester polyol or a polyurethane comprises one of the following blends of commercially available additives: TINUVIN® 234 / TINUVIN® 144 / Irganox® 1010 / Irgafos® 126; TINUVIN® 312 / TINUVIN® 770 / Irganox® 1010 / Irgafos® 126; TINUVIN® 312 / TINUVIN® 622 / Irganox® 1010 / Irgafos® 126; TINUVIN® 312 / TINUVIN® 144 / Irganox® 1010 / Irgafos® 126; TINUVIN® 328 / TINUVIN® 144 / Irganox® 1010 / Irgafos® 126.
• polyether polyol a polyester polyol or a polyurethane comprising one of the following blends of commercially available additives:
• polyether polyol a polyester polyol or a polyurethane comprising one of the following blends of commercially available additives:
• polyether polyol a polyester polyol or a polyurethane comprising the one of the following blends of commercially available additives:
• the stabilizers and stabilizer blends mentioned are suitable as stabilizers for polyether polyol, polyester polyol or polyurethane against oxidative, thermal and/or light-induced degradation and as reducer of fogging contribution of the polymer.
• the polyether polyol, polyester polyol or polyurethane composition of the present invention may be also a foam (flexible, rigid, integral), a microcellular foam, a cast PU, a PU skin, a PU hot melt adhesive, a silylated polyurethane (SPUR), a thermoplasic polyurethane (TPU) a PU elastomer, artifical leather, PU skin, PU stray coating or reaction injection molding (RIM).
• polyether polyol, polyester polyol or polyurethane composition of the present invention are not foamed.
• the polyurethanes are obtained, for example, by reacting polyethers, polyesters and poly- butadienes which contain terminal hydroxyl groups, i.e. polyols, with aliphatic or aromatic polyisocyanates.
• Polyethers and polyesters having terminal hydroxyl groups are known and are prepared, for example, by polymerizing epoxides such as ethylene oxide, propylene oxide, butylene oxide, tetrahydrofuran, styrene oxide or epichlorohydrin with themselves, for ⁇ example in the pre ⁇ sence of BF 3 , or by addition reaction of these epoxides, alone or as a mixture or in success- sion, with starting components containing reactive hydrogen atoms, such as alcohols, ammonia or amines, for example ethylene glycol, propylene 1,3- and 1,2-glycol, trimethylol- propane, 4,4'-dihydroxydiphenylpropane, aniline, ethanolamine or ethylenediamine.
• epoxides such as ethylene oxide, propylene oxide, butylene oxide, tetrahydrofuran, styrene oxide or epichlorohydrin
• starting components containing reactive hydrogen atoms
• Sucrose polyethers are also suitable in accordance with the invention. In many cases preference is given to those polyethers which predominantly (up to 90 % by weight, based on all the OH groups present in the polyether) contain primary OH groups. Furthermore, polyethers modi ⁇ fied by vinyl polymers, as are formed, for example, by polymerizing styrene and acrylonitrile in the presence of polyethers, are suitable, as are polybutadienes containing OH groups.
• These compounds generally have molecular weights of 40 and are polyhydroxy compounds, especially compounds containing from two to eight hydroxyl groups, especially those of molecular weight from 800 to 10000, preferably from 1000 to 6000, for example polyethers containing at least 2, generally 2 to ⁇ , but preferably 2 to 4, hydroxyl groups, as are known for the preparation of homogeneous polyurethanes and cellular polyurethanes.
• Suitable polyisocyanates are aliphatic, cycloaliphatic, araliphatic, aromatic and heterocyclic polyisocyanates, for example ethylene diisocyanate, 1 ,4-tetramethylene diisocyanate, 1,6- hexamethylene diisocyanate, 1,12-dodecane diisocyanate, cyclobutane 1,3-diisocyanate, cyclohexane 1,3- and -1,4-diisocyanate and also any desired mixtures of these isomers, 1- isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane : 2,4- and 2,6-hexahydrotolylene diisocyanate and also any desired mixtures of these isomers, hexahydro-1,3- and/or -1,4- phenylene diisocyanate, perhydro-2,4'- and/or -4 ,4'-diphenylmethan
• isocyanate group-containing distillation residues as they are or dissolved in one or more of the above-mentioned polyisocyanates, which are obtained in the course of the industrial preparation of isocyanates. It is additionally possible to use any desired mixtures of the above-mentioned polyisocyanates.
• polyisocyanates which are readily obtainable industrially, for example aromatic isocyanates such as 2,4- and 2,6-tolylene diisocyanate and any desired mixtures of these isomers (“TDI”), polyphenyl-polymethylene-polyisocyanates as prepared by aniline-formaldehyde condensation followed by phosgenization (“crude MDI”), and polyisocyanates containing carbodiimide, urethane, allophanate, isocyanurate, urea or biuret groups (“modified polyisocyanates”).
• aromatic isocyanates such as 2,4- and 2,6-tolylene diisocyanate and any desired mixtures of these isomers
• CAMDI polyphenyl-polymethylene-polyisocyanates as prepared by aniline-formaldehyde condensation followed by phosgenization
• Polyurethane is preferably prepared from liquid starting components, i.e. the starting materials to be reacted with one another being mixed together in a one-shot process.
• incorporación of the additives and/or stabilizer blends into the polyether polyol, polyester polyol or polyurethane is carried out by known methods, for example before or during compounding, extrusion, co-extrusion or can also be added before or during polymerisation or before crosslinking.
• the additives and/or stabilizer blends are added before polymerisation, they can be dissolved in one or all reactants. They are preferably dissolved in the polyether polyol or polyester polyol.
• compositions of this invention will help to fulfil needs and/or requirements for the polyurethane industry, in providing polyurethane (PU) compounds, thermoplastic PU, cast PU, reaction injection molding (RIM), spray coating, PU skin.
• PU polyurethane
• RIM reaction injection molding
• compositions according to the invention can be advantageously used for various purposes and for the preparation of various shaped articles.
• E ⁇ xamples are:
• V-1-A Electrical and electronic industry Bushes, cable connections, components for electrical control and adjustment, electromagnetic switches, hard and elastomeric encapsulants, gear shift cable castings for motor vehicle electrics, insulants, printed circuits, potting, semiconductors, switches, switch gears, medium and high voltage transformers.
• V-1-C Leisure Skate board roller.
• V-2-A Automotive
• Bonding of textile onto foam direct glazing of vehicle windscreens, glazing replacement, fastening of various car components, vacuum lamination of foil to fiberboard.
• Binding agent for re-milled rubber waste the composite materials are mainly used as molded tiles, playgrounds (in-situ), running tracks (in-situ).
• V-2-J Sandwich construction Binding of similar substrates together or to other materials such as metals, plastics and rigid foam; used in a variety of laminated panels, such as panels for buildings, caravans, partition walls, refrigerated trucks, containers and cold storages.
• V-3-A Automotive applications, in particular as instrument clusters, sound insulation, carpeting, seating, decorative trim, exterior applications such as weather stripping, exterior trim, light lens units, and windshield assemblies, recreational vehicle side walls.
• V-3-B Textile applications, in particular lamination, profile wrapping.
• V-3-C Furniture industry, in particular for bonding bond solid wood, wood composites, metal hardware, and decorative plastic laminates.
• V-3-D Construction industry, in particular assembly of door and window frames and corner covering for linoleum flooring.
• Adhesives for shoe bond upper to sole
• toe caps porosity
• furniture do it yourself and automotive.
• Household appliances cables outdoor electrical cables, industrial cables and wire.
• Pneumatic transport systems ventilation systems, pneumatic control units, pneumatic breaks, hydraulic tubes, corrugated pipes, fire hoses, vacuum cleaner tubes.
• VI-3) Film and sheet These are made from both aromatic and aliphatic TPUs. Typical applications are barrier film, adhesive film, seam tape, inter layer in security glass.
• Ear tags are Ear tags, wheels, horse shoes, plugs, wrist watch straps.
• VI-4-B Hi-performance / special compounds Transparent soles for sport shoes, frames for ski goggles, technical parts, screens (mining).
• Gear shift knobs bearing sockets, cable plugs, bushings, casings, friction bearings.
• Hydraulic seals stripper rings, gaskets, pneumatic seals, membranes.
• VII-2) Semi-rigid foam, in particular roof liners, hat racks, door panels, arm rest, instrument panel, head-impact, side-impact.
• Vl 1-5) RIM, in particular bumpers, sun roof, front and rear skirts, door sill scuff plates.
• Cast PU systems in particular spring aids, spring isolation, seat damping, top mounts, roll restrictors, emergency wheel, body mounts, stops in door systems.
• Footwear Shoes / shoe-soles insoles, spats, adhesives, structural adhesives.
• Support devices Articles for the leisure time such as sports and fitness devices, gymnastics mats, ski-boots, inline-skates, skis, big foot, athletic surfaces (e.g. tennis grounds).
• a further embodiment of the present invention relates to a shaped article, in particular artificial leather, shock-absorbers, rollers of inline-skates and footwear, containing a composition as described above.
• Tinuvin® 144 hindered amine light
• Percentages and ratios mean weight percent and weight ratios.
• thermoplastic polyurethane (TPU) pellets (Desmopan® 385 S of Bayer Material Science®) are mixed to homogeneity in a tumble mixer with 0.33 % of pentaerythritol tetrakis 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate (Irganox® 1010), 0.17 % of bis(2,4-di-tert- butylphenyl) pentaerythritol diphosphite (Irgafos® 126), and with the light stabilizer combinations given in the tables below.
• This blend is then extruded in a twin-screw extruder of Berstorff® at a temperature of at most 180 0 C. After drawing the extrudate through a waterbath to cool, it is granulated.
• TPU films are dissolved 22 g DMF as a solvent.
• TPU films are prepared by drawing film with a 250 micron doctor blade. The DMF solvent is evaporated and the films are dried. The final film thickness is about 40 micron.
• the color quality is reported in terms of Yellowness Index (Yl) determined on the TPU samples in accordance with the ASTM 1926-70 Yellowness Test. Low Yl values denote little discoloration, high Yl values severe discoloration of the samples. The whiter the TPU the better the TPU is stabilized.
• Yl Yellowness Index
• Table 1 Determination of initial color and light stability obtained with various light stabilizer systems. (Measured according to ASTM 1926-70).
• Table 2 Determination of initial color and light stability obtained with various light stabilizer systems ⁇ Measured according to ASTM 1926-70).
• Film, Weatherometer (WOM) bpt 63°C, 0.35 W/m2
• Table 3 Determination of initial color and light stability obtained with various light stabilizer systems. (Measured according to ASTM 1926-70). 2 mm plaques, Kalahari exposure (VW Test PV 3929)

Landscapes

• Chemical & Material Sciences (AREA)
• Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Organic Chemistry (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Polyurethanes Or Polyureas (AREA)
• Polyesters Or Polycarbonates (AREA)

Priority Applications (10)

Applications Claiming Priority (4)

Related Child Applications (1)

Publications (1)

Family

ID=34971573

Family Applications (1)

Country Status (13)

Cited By (10)

Families Citing this family (28)

Citations (2)

Family Cites Families (15)

• 2005
  • 2005-06-15 MY MYPI20052719A patent/MY139524A/en unknown
  • 2005-06-20 AT AT05756879T patent/ATE409205T1/de not_active IP Right Cessation
  • 2005-06-20 CA CA2570540A patent/CA2570540C/en not_active Expired - Lifetime
  • 2005-06-20 WO PCT/EP2005/052843 patent/WO2006003092A1/en not_active Ceased
  • 2005-06-20 ES ES05756879T patent/ES2314674T3/es not_active Expired - Lifetime
  • 2005-06-20 JP JP2007518582A patent/JP5165370B2/ja not_active Expired - Lifetime
  • 2005-06-20 KR KR1020077000218A patent/KR101267891B1/ko not_active Expired - Lifetime
  • 2005-06-20 MX MXPA06015139A patent/MXPA06015139A/es active IP Right Grant
  • 2005-06-20 US US11/630,230 patent/US7910642B2/en active Active
  • 2005-06-20 BR BRPI0512939A patent/BRPI0512939B1/pt active IP Right Grant
  • 2005-06-20 DE DE602005009956T patent/DE602005009956D1/de not_active Expired - Lifetime
  • 2005-06-20 EP EP05756879A patent/EP1765928B1/en not_active Expired - Lifetime
  • 2005-06-28 TW TW094121542A patent/TWI394779B/zh not_active IP Right Cessation
• 2011
  • 2011-02-10 US US13/024,404 patent/US20110130492A1/en not_active Abandoned

Patent Citations (2)

Also Published As

Similar Documents

Legal Events