September 21, 2021

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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The process can be carried out in any heatable apparatus fitted with a stirrer. In case of R being an alkanetetrayl radical, the tetracarboxylic dianhydride may be such as butane- 1 ,2,3,4-tetracarboxylic dianhydride.

Preferred diols are the alkylene diols, 1,4-dihydroxycyclohexane and l,4-bis hydroxy- methyl cyclohexane. Chlorinated polyethylene or ethylenevinyl acetate copolymers are also suitable co-compatibilisers, although it naturally depends on the particular composition of the recyclate. Polyesters as exemplified by polyethylene terephthalate PET and polybutylene terephthalate PBTas well as polyester copolymers and polyester blends with e. Preferred light stabilisers are those of classes 2.

N,N’-bis 3,5-di- tert-butylhydroxyphenylpropionyl hexamethylenediamine, N,N’-bis 3,5-di-tert-butyl- 4-hydroxyphenylpropionyl trimethylenediamine, N,N’-bis 3,5-di-tert-butylhydroxy- phenylpropionyl hydrazine. The solution viscosity of the granulate so obtained is 0.

Particularly suitable co- stabilisers include: BE Free format text: R- is isopropyl, tert-butyl, cyclohexyl or cyclohexyl which is substituted by 1 to 3. Thus, when using a severely damaged polyester, i. Antioxidant Irganox Photos Catalog. The amounts and the results obtained are set forth in Table 3.


LI Free format text: Preferably n is 1 or 2 and, most preferably, 1. The process may, however, also be carried out in an extruder and also 14425 the presence of air. Country of ref document: R j is isopropyl, tert-butyl, cyclohexyl or cyclohexyl which is substituted by 1 to 3.

Impact-modified thermoplastics resin molding compositions and articles molded therefrom. Esters of 3,5-di-tert-butylhvdroxyphenyl acetic acid with mono- or polyhydric alcohols, e. Cubicle Liquidators have a real showroom with real displays and real in-stock inventories that we A further preferred form comprises the polyester recyclates originating from domestic and industrial waste or from useful material collections, from production waste or from obligatory retumables.

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: The polyesters may also be branched with minor amounts, typically 0.

Polyesters with aromatic dicarboxylic acids have achieved the greatest importance, in particular the polyalkylene terephthalates. Ca is particularly preferred. GB Ref legal event code: Avoid payments in advance such as money transfers Irvanox their business via their local Chamber of 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.

The mixture is stirred for 20 minutes and then removed from the glass tube.

China Antioxidant – China Antioxidant (IRGANOX ), Antioxidant

Polycarbonate and polyester blends modified with polyorganosiloxane graft polymers combined with diene rubber-based graft polymers. Liquid phase polyols which are alkylene oxide adducts of terephthalic esters from recycled polyethylene terephthalate.


R 3 is G r C 2 oalkyl or substituted or unsubstituted phenyl or naphthyl. Aromatic hydroxybenzyl compounds, for example l,3,5-tris 3,5-di-tert-butylhy- droxybenzyl -2,4,6-trimethylbenzene, l,4-bis 3,5-di-tert-butylhydroxybenzyl -2,3,5,6- tetramethylbenzene, 2,4,6-tris 3,5-di-tert-butylhydroxybenzyl phenol.

EP0748346A1 – Increasing the molecular weight of polyesters – Google Patents

The invention also relates to polyesters, polyester copolymers or polyester blends and polyester recyclates comprising a tetracarboxylic dianhydride and a sterically hindered hydroxyphenylalkylphosphonic acid ester or half-ester.

Aromatic diols will irganlx understood as meaning those in which two hydroxyl groups are bonded to one or to different aromatic hydrocarbon radicals.

Stabilizer system of metal hydroxyalkyl phosphonic acid, uv absorber and benzoate. The aliphatic diols may contain from 2 to 12 carbon atoms, the cycloaliphatic diols from 5 to 8 carbon atoms and the aromatic diols from 6 to 16 carbon atoms. Increase in molecular weight of polyester PES.

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. Lapsed in a contracting state announced via postgrant inform. The amounts and the results obtained are set forth in Table 2.