Synonyms: IRGANOX ;IRGANOX WL;Einecs ; ANTIOXIDANT ;ylester,calciumsalt();ANTIOXIDANT (IRGANOX );calciuM. Irganox® Recommended use of the chemical and restriction on use. Recommended use*: stabilizer. Unsuitable for use: This material is. Used as an antioxidant for polypropylene fibers. Offers good processing stability. Provides very high extraction resistance and extreme low volatility.

Author: Bramuro Shaktigami
Country: Libya
Language: English (Spanish)
Genre: Music
Published (Last): 24 June 2016
Pages: 98
PDF File Size: 20.32 Mb
ePub File Size: 14.49 Mb
ISBN: 618-7-93937-330-4
Downloads: 64246
Price: Free* [*Free Regsitration Required]
Uploader: Turamar

Stabilizer system of metal hydroxyalkyl phosphonic acid, uv absorber and benzoate. Alkylthiomethylphenols, for example 2,4-dioctylthiomethyltert-butylphenol, 2,4-dioctylthiomethylmethylphenol, 2,4-dioctylthiomethylethylphenol, 2,6-di-do- decylthiomethylnonylphenol.

Antioxidant Irganox 1425 (Irganox 1425)

The amounts and the results obtained are set forth in Table 4. Oxamides, for example 4,4′-dioctyloxyoxanilide, 2,2′-diethoxyoxanilide, 2,2′-dioc- tyloxy-5,5′-di-tert-butoxanilide, 2,2′-didodecyloxy-5,5′-di-tert-butoxanilide, 2-ethoxy-2′- ethyloxanilide, N,N’-bis 3-dimethylaminopropyl oxamide, 2-ethoxytert-butyl-2′-ethox- anilide and irgankx mixture with 2-ethoxy-2′-ethyl-5,4′-di-tert-butoxanilide and mixtures of ortho- and para-methoxy-disubstituted oxanilides and mixtures of o- and p-ethoxy-disub- stituted oxanilides.

Unsubstituted or substituted alkylidene is exemplified by: Impact-modified thermoplastics resin molding compositions and articles molded therefrom. AT Date of ref document: Aromatic diols will be understood as meaning those in which two hydroxyl groups are bonded to one or to different aromatic hydrocarbon radicals.

Esters of substituted and unsubstituted iirganox acids, as for example 4-tertbutyl- phenyl salicylate, phenyl salicylate, octylphenyl salicylate, dibenzoyl resorcinol, bis 4- tert-butylbenzoyl resorcinol, benzoyl resorcinol, 2,4-di-tertbutylphenyl 3,5-di-tert-butyl- 4-hydroxybenzoate, hexadecyl 3,5-di-tert-butylhydroxybenzoate, octadecyl 3,5-di-tert- butylhydroxybenzoate, 2-methyl-4,6-di-tert-butylphenyl 3,5-di-tert-butylhydroxy- benzoate.

China Antioxidant – China Antioxidant (IRGANOX ), Antioxidant

CH Ref legal event code: Preferred light stabilisers are those of classes 2. Hydroxybenzylated malonates, for example dioctadecyl-2,2-bis 3,5-di-tert-butyl hydroxybenzyl malonate, bis[octadecyl 3-tert-butylhydroxymethylbenzyl ]malo- nate, bis[dodecylmercaptoethyl-2,2-bis- 3,5-di-tert-butylhydroxybenzyl ]malonate, bis- [4- 11 ,3,3-tetramethylbutyl phenyl]-2,2-bis 3,5-di-tert-butylhydroxybenzyl malonate.


Preferred tetracarboxylic dianhydrides are those containing aromatic rings. The amount of tetracarboxylic anhydride and sterically hindered hydroxyphenylalkylphosphonic acid ester or half -ester will depend on the initial molecular weight of the polymer and on the desired final molecular weight. Suitable cycloaliphatic dicarboxylic acids are: The PET bottle materials originating from different manufacturers comprise polyethylene terephthalate and also copolymers of different structure and composition, but with a preponderant content of PET structures.

Substituents defined as alkyl containing up to 20 carbon atoms may suitably be methyl, ethyl, propyl, butyl, pentyl, hexyl and octyl, stearyl, as well as corresponding branched isomers. A further group of suitable aliphatic diols comprises the heterocyclic diols disclosed in. Compounds in which R! Preferred compounds of formula II are those that contain at least one tert-butyl group as Rj or R 2.

Further bis- phenols are mentioned hereinafter. A process for increasing the molecular weight of polyesters, polyester copolymers or polyester blends, which comprises heating a polyester blended with a tetracarboxylic acid dianhydride and a sterically hindered hydroxyphenylalkylphosphonic acid ester or half-ester to above the melting point in the case of crystalline polyesters or to above the glass transition temperature in the case of amorphous polyesters of the polyester.

UV absorbers and light stabilisers 2. It is particularly useful as a stabilizer and esterification catalyst in modified rosin resins and in PET and other thermoplastic polyesters. A mixture with polyethylene wax is a preferred form of addition, especially when using the metal salts of the phenol. R j is isopropyl, tert-butyl, cyclohexyl or cyclohexyl which is substituted by 1 to 3.


A mixture of tetracarboxylic dianhydrides of different structure may also be used. A process according to claim 1, which comprises using a metal salt of the sterically hindered hydroxyphenylalkylphosphonic acid ester in admixture with a polyethylene wax. A PET or PBT recyclate, in particular a PET bottle recyclate, comprising a tetracarboxylic dianhydride and a sterically hindered hydroxyphenylalkylphosphonic acid ester or half-ester.

Store it in a dry, cool, well-ventilated shady place. Suitable polyesters of hydroxycarboxylic acids typically include polycaprolactone, polypivalolactone or the polyesters of 4-hydroxycyclohexanecarboxylic acid or 4-hydroxybenzoic acid, 5-hydroxynaphthalene-l-carboxylic acid, 6-hydroxynaphtha- lenecarboxylic acid. As regards the chemical composition of the polyester recyclates, the particulars given above apply likewise. Preferred diols are the alkylene diols, 1,4-dihydroxycyclohexane and l,4-bis hydroxy- methyl cyclohexane.

Those skilled in the art will be familiar with these co-stabilisers, which will be chosen in accordance with the specific requirement made of the final product. Date of ref document: Metal deactivators, for example N,N’-diphenyloxamide, N-salicylal-N’-salicyloyl hydrazine, N,N’-bis salicyloyl hydrazine, N,N’-bis 3,5-di-tert-butylhydroxyphenyl- propionyl hydrazine3-salicyloylamino-l,2,4-triazole, bis benzylidene oxalyl di- hydrazide, oxanilide, isophthaloyl dihydrazide, sebacoyl bisphenylhydrazide, N,N’-di- acetyladipoyl dihydrazide, N,N’-bis salicyloyl oxalyl dihydrazide, N,N’-bis salicyloyl – thiopropionyl dihydrazide.