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.

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For the addition, the tetracarboxylic dianhydride and the phenol can independently of each other be in the form of a powder, liquid, granulate or in compacted form, or also in irhanox cases on a substrate such as silica gel or together with a polymer powder or wax such as a polyethylene wax.

Irganox 1425 CAS NO.65140-91-2

Benzofuranones and indolinones, for example those disclosed in US-AUS-A-4US-A-5US-A-5US-A-5DE-A-4DE-A-4DE-A-4EP-A-0 or EP-A-0 or 3-[4- 2-acet- oxyethoxy phenyl]-5,7-di-tert-butylbenzofuranone, 5,7-di-tert-butyl[4- 2-stearoyl- oxyethoxy phenyl]benzofuranone, 3,3′-bis[5,7-di-tert-butyl 4-[2-hydroxyethoxy]- phenyl benzofuranone], 5,7-di-tert-butyl 4-ethoxyphenyl benzofuranone, 3- 4- acetoxy-3,5-dimethylphenyl -5,7-di-tert-butyl-benzofuranone, 3- irgano loyloxyphenyl -5,7-di-tert-butyl-benzofuranone.

SE Free format text: The mechanical and physical properties depend essentially on the molecular weight of the polymer. Internet Crime Complaint Center – International Financial Scams This irgganox is never involved in any transaction, and irgabox not handle payments, shipping, guarantee transactions, provide escrow services, or offer “buyer protection” or “seller certification”. Suitable aliphatic dicarboxylic acids are those containing 2 to 40 carbon atoms, typically suberonic acid, oxalic acid, malonic acid, dimethylmalonic acid, succinic acid, octadecylsuccinic acid, pimelic acid, adipic acid, trimethyladipic acid, sebacic acid, azelaic acid and dimer acids dimerisation products of unsaturated aliphatic carboxylic acids such as oleic acidalkylated malonic and succinic acids such as octadecylsuccinic acid.

AT Ref legal event code: Polyesters as exemplified by polyethylene terephthalate PET and iryanox terephthalate PBTas well as polyester copolymers and polyester blends with e. 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.

  AFR 127-100 PDF

A1 Designated state s: If the polyesters are based on at least two monomers, said monomers can be randomly distributed, or they may be block polymers.

The aliphatic diols may contain from 2 to 12 carbon atoms, the cycloaliphatic diols from 5 to 8 carbon irfanox and the aromatic diols from 6 to 16 carbon atoms. The invention further relates to the use of a mixture comprising a tetracarboxylic dianhydride and a sterically hindered hydroxyphenylalkylphosphonic acid ester or half- ester for increasing the molecular weight of polyesters and, in particular of polyester recyclates.

A further group of suitable aliphatic diols irganos the heterocyclic diols disclosed in.

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Other suitable co-compatibilisers contain in particular polar groups, for example maleic anhydride-styrene copolymers or graft polymers containing acrylic acid groups. Among these compounds, preferred antioxidants are: Avoid payments in advance such as money transfers Verify their business via their local Chamber igganox Commerce Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.

Preferably n is 1 or 2 and, most preferably, 1.

The procedure of Examples is repeated, but kneading the individual samples for 15 minutes. Use of a mixture comprising a tetracarboxylic dianhydride and a sterically hindered hydroxyphenylalkylphosphonic acid ester or half-ester for increasing the molecular weight of polyester recyclates. Suitable aliphatic diols are the linear and branched aliphatic glycols, preferably those containing 2 to 12, most preferably 2 to 6, carbon atoms in the molecule, typically including: It is particularly useful as a stabilizer and esterification catalyst in modified rosin resins and in PET and other thermoplastic polyesters.


Derivatives of 2,2,6,6-tetramethylpiperidinol for use as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials. It shows good processing stability during polypropylene fiber production when combined with antioxidant FR Free format text: GB Free format text: CH Free format text: Hvdroxylated thiodiphenyl ethers, for example 2,2′-thiobis 6-tert-butylmethyl- phenol2,2′-thiobis 4-octylphenol4,4′-thiobis 6-tert-butylmethylphenol4,4′-thio- bis 6-tert-butylmethylphenol4,4′-thiobis- 3,6-di-sec-amylphenol4,4′-bis- 2,6-dim- ethylhydroxyphenyl disulfide.

A mixture with polyethylene wax is a preferred form of addition, especially when using the metal salts of the phenol. The temperature will depend on the polyester used.


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. UV absorbers and light stabilisers 2. Table 3 relating to Examples of this invention addition of tetracarboxylic dianhydride and hydroxyphenylalkylphosphonic acid ester or half -ester shows a marked increase in intrinsic viscosity, thereby indicating an increase in molecular weight.

B1 Designated state s: AT Free format text: Liquid phase polyols which are irbanox oxide adducts of terephthalic esters from recycled polyethylene terephthalate.

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Kind code of ref document: A process according ifganox claim 1, wherein the polyesters, polyester copolymers or polyester blends are polyester recyclates recovered from domestic waste, industrial waste or useful material collections, production waste or obligatory retumables. Synthesis and characterization of copolyesters containing the phosphorus linking pendent groups. The preferences in connection with said polyesters are the same as those referred to in connection with the process.