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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Polyesters as exemplified by polyethylene terephthalate PET and polybutylene terephthalate PBTas well as polyester copolymers and polyester blends with e. 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, irgabox also in some cases on a substrate such as silica gel or together with a polymer powder or wax such as a polyethylene wax.
Derivatives of 2,2,6,6-tetramethylpiperidinol for use as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials.
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Internet Crime Complaint Center – International Financial Scams This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer “buyer protection” or “seller certification”. B1 Designated state s: Suitable dicarboxylic acids irgxnox linear and branched saturated aliphatic dicarboxylic acids, aromatic dicarboxylic acids and cycloaliphatic dicarboxylic acids.
Hydroquinones and alkylated hvdroquinones, for example 2,6-di-tert-butyl methoxyphenol, 2,5-di-tert-butylhydroquinone, 2,5-di-tert-amylhydroquinone, 2,6-di- phenyloctadecyloxyphenol, 2,6-di-tert-butylhydroquinone, 2,5-di-tert-butylhydroxy- anisole, 3,5-di-tert-butylhydroxyanisole, 3,5-di-tert-butylhydroxyphenyl stearate, bis- 3,5-di-tert-butylhydroxyphenyl adipate.
The preferred utilities are the same as those referred to in connection with the process.
Acylaminophenols- for example 4-hydroxylauranilide, 4-hydroxystearanilide, octyl N- 3,5-di-tert-butylhydroxyphenyl carbamate. Basic co-stabilisers, for example, melamine, poly vinylpyrrolidone, dicyandiamide, tri- allyl cyanurate, urea derivatives, hydrazine derivatives, amines, polyamides, polyure- thanes, alkali metal salts and alkaline earth metal salts of higher fatty acids for example calcium stearate, zinc stearate, magnesium behenate, magnesium stearate, sodium rici- noleate and potassium palmitate, antimony pyrocatecholate or tin pyrocatecholate.
Koine, Kunststoffe 82 Triazine compounds, for example 2,4-bis octylmercapto 3,5-di-tert-butyl hydroxyanilino -l,3,5-triazine, 2-octylmercapto-4,6-bis 3,5-di-tert-butylhydroxy- anilino – 1 ,3,5-triazine, 2-octylmercapto-4,6-bis 3,5-di-tert-butylhydroxyphenoxy – 1 ,3,5-triazine, 2,4,6-tris 3,5-di-tert-butylhydroxyphenoxy -l ,2,3-triazine, irgznox ,3,5-tris- 3,5-di-tert-butylhydroxybenzyl isocyanurate, l,3,5-tris 4-tert-butylhydroxy-2,6-di- methylbenzyl isocyanurate, 2,4,6-tris 3,5-di-tert-butylhydroxyphenylethyl -l,3,5-tri- azine, l,3,5-tris 3,5-di-tert-butylhydroxyphenylpropionyl -hexahydro-l,3,5-triazine, l,3,5-tris 3,5-dicyclohexylhydroxybenzyl isocyanurate.
The mixture is stirred for 20 minutes and then removed from the glass tube. The solution viscosity of the granulate so obtained is 0. Benzylphosphonates, for example dimethyl-2,5-di-tert-butylhydroxybenzylphos- phonate, diethyl-3,5-di-tert-butylhydroxybenzylphosphonate, dioctadecyl-3,5-di-tert- butylhydroxybenzylphosphonate, dioctadecyltert-butylhydroxymethylbenzyl- phosphonate, the calcium salt of the monoethyl ester of 3,5-di-tert-butylhydroxybenzyl- phosphonic acid.
However, this method is troublesome and, moreover, is highly sensitive to the impurities that may be present in waste material. Other suitable co-compatibilisers contain in particular polar groups, for example maleic anhydride-styrene copolymers or graft polymers idganox acrylic acid groups.
Tetracarboxylic dianhydrides useful within the scope of this invention are those of 14225. 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 its 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.
A further utility of PET is fibre production. NL Ref legal event code: Impact-modified thermoplastics resin molding compositions and articles molded therefrom.
Antioxidant Irganox 1425 (Irganox 1425)
DE Date of ref document: A process according to 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. A process is disclosed 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 glass transition temperature of the polyester.
Liquid phase polyols which are alkylene oxide adducts of terephthalic esters from recycled polyethylene terephthalate.
Thus, when using a severely damaged polyester, i. 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.
EP0748346A1 – Increasing the molecular weight of polyesters – Google Patents
Stabilizer system of metal hydroxyalkyl phosphonic acid, uv absorber and benzoate. DE Ref legal event code: Chlorinated polyethylene or ethylenevinyl acetate copolymers are also suitable co-compatibilisers, irganpx it naturally depends on the particular composition of the recyclate.
Nucleating agents, for example, 4-tert-butylbenzoic acid, adipic acid, diphenylacetic acid or irganos or aluminum benzoates. 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.
It is particularly useful as a stabilizer and esterification catalyst in modified rosin resins and in PET and other thermoplastic polyesters. Antioxidant Irganox Photos Catalog. The alkylene diols are preferably linear and preferably contain 2 to 4 irgnaox atoms. Safe Trade Tips Ask for business references and check them Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services.
Synthesis and characterization of copolyesters containing the phosphorus linking pendent groups. Their composition will depend essentially on the desired properties for a specific end use.
Antioxidant Irganox Equivalent Guagnzhou – ECeurope Market
Aromatic will be understood as meaning preferably aromatic hydrocarbon radicals such as phenylene or naphthylene. But if only a low increase in molecular weight is desired, then it is preferred to use a tetracarboxylic anhydride and a phenol in low concentration.
Unsubstituted or substituted alkylidene is exemplified by: Lapsed in a contracting state announced via postgrant inform. DE Free format text: 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: Further bis- phenols are mentioned hereinafter.
Preferred diols are the alkylene diols, 1,4-dihydroxycyclohexane and l,4-bis hydroxy- methyl cyclohexane. After 10 minutes the polymer mixture is sufficiently fused to be stirrable.