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Irganox - Antioxidants - BASF SE
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Kunststoffe international, 2005-11-21, Consumer Protection: Migration Models for the Assessment of Plastic Products
...lso has an influence on the diffusion rate. This influence is relatively low, however. If a comparison is drawn, for example, between the two frequently-used antioxidants 3-octadecyl-(3,5-di-tert-butyl-4-hydroxy-phenyl)propionate (Irganox 1076) and tris(2,4-di-tert-butyl-phenyl)phosphite (Irgafos 168) (Fig. 3) in respect of their diffusion in PE-HD at 70°C, then the AP value obtained for Irgafos 168 is 0.8 units lower than for Irganox 1076, and that means a DP value that is 0.5 times lower. The ...
Kunststoffe international, 2005-11-21, Integrated Solutions
...ed on temperature resistance for under-the-bonnet applications. Different stabilisers were thus developed for glass fibre filled polyamides as a function of the temperature profile. At temperatures of up to 130°C, organic additives such as Irganox B 1171 provide good thermal stability with minimum discolouration. At 150°C, this stability can only be achieved with copper-based systems, which are available in the form of Polyads or customized mixtures. Mixes of this type can, unfortunately, lead t...
Kunststoffe international, 2005-11-21, Morphology and Mechanical Properties: Blends of Polyamide 66 and Syndiotactic Polystyrene
...1 were employed to compound blends. Use was made here of a PA 66 of type Zytel EFE 1032 from DuPont, an sPS of type Questra CP QA 101 natural, produced by Dow, and a modifier of type Scona TPSPS 8012 PA, produced by Kometra. All the blends had 0.2% Irganox B 215 from Ciba Specialty Chemicals added to them as a stabiliser. When blends of this type are compounded, the modifier undergoes a chemical reaction with the polyamide (Fig.1) [1 to 2]. To make this reaction as efficient as possible, it must...
Kunststoffe international, 2006-04-25, Filler Dispersion: Ultrasonic Spectroscopy for In-Line Monitoring
...rasound propagation, this could also improve the acceptability of inline ultrasound processes. Besides the studies presented here, the above-described ultrasonic measurement method has already been tested on the following systems: PP/Irganox, SAN/ABS, PP/PA6, PP/hemp and PP/montmorillonite. Acknowledgement The authors are grateful to the Federal Ministry for Economic Affairs and Labour (BMWA) for financially supporting this research project via the “Otto von Guericke” Confederation of Industri...
Kunststoffe international, 2006-05-23, Innovative Potential: Additives Now and in the Future
...rm weathering resistance of pigmented TPO exterior automotive parts [10] (grade: Ciba Tinuvin XT 850), - multifunctional stabiliser system to impart excellent processing and long-term stability to adhesives, e.g. based on SIS/SBS [11] (grade: Ciba Irganox 1726) and - liquid stabiliser system for peroxide-crosslinked PE cables [12] (grade: Ciba Irgastab Cable KV 10). Even with additives such as lubricants and PVC stabilisers, exciting new products are being launched, e.g. metallocene catalysts ar...
Kunststoffe international, 2011-09-23, Reactive Compounding Reduces Sagging Effects
...olecular weight of ??? n = 28,000 g/mol, this PA grade has a low melt viscosity. The product type SMA EF-40 from Cray Valley was used as SMA functional molecule. The bisphenol A diglycidyl ether (EPA) epoxy resin was sourced from Sigma-Aldrich. Irganox 1098 from BASF was used as PA66 thermal stabilizer. For the reactive compounding process, a co-rotating, closely intermeshing twin-screw extruder (type: ZSK26 MC, manufacturer: Coperion) was used at the IKT. Its screw diameter is Da = 25.5 mm, his...
Kunststoffe international, 2013-04-19, Automatic Corrections and Calculations
...t the dispersion of the pigment. In order to illustrate this in the following trial the content of additives was varied widely. For example changing the concentration of the stabilizer (grade: Tinuvin 622 and Irganox 1010, manufacturer: BASF SE, Ludwigshafen, Germany) by just 0.1 % resulted in a color deviation of 1.11 and 0.82 respectively in a polypropylene (PP) compound (grade: Sabic PP 505P, manufacturer: Sabic Deutschland GmbH...
Kunststoffe international, 2016-07-20, Tracking down the Causes
...ives. It is likewise not possible to guarantee that materials are absolutely free of metals. The only solution at present is to chemically bind the metal content. For this purpose, the plastics industry uses e. g. the additive Irganox MD 1024 from BASF. For paints and foams, a new additive must be developed and tested. W SampleC1[at %]C2[at %]C3[at %]C4[at %]C total[at %]1 discolored72187465.82 not discolored8539367.53 sample with discoloration reversed after exposure to light8449368The Authors...
Kunststoffe international, 2016-09-23, Tracking down the Causes
...ding and compression stresses) and was partly responsible for foam discoloration. This migrant adhesive antioxidant in the foam became discolored by contact with iron and ambient moisture. At the same time, the antioxidant used in the foam (normally Irganox 1076 from BASF SE, Ludwigshafen, Germany) also became discolored, but somewhat more slowly.The mechanism for the discoloration of phenolic antioxidants has already been shown to involve conversion of the phenol form into the quinone form (the...
...lso has an influence on the diffusion rate. This influence is relatively low, however. If a comparison is drawn, for example, between the two frequently-used antioxidants 3-octadecyl-(3,5-di-tert-butyl-4-hydroxy-phenyl)propionate (Irganox 1076) and tris(2,4-di-tert-butyl-phenyl)phosphite (Irgafos 168) (Fig. 3) in respect of their diffusion in PE-HD at 70°C, then the AP value obtained for Irgafos 168 is 0.8 units lower than for Irganox 1076, and that means a DP value that is 0.5 times lower. The ...
Kunststoffe international, 2005-11-21, Integrated Solutions
...ed on temperature resistance for under-the-bonnet applications. Different stabilisers were thus developed for glass fibre filled polyamides as a function of the temperature profile. At temperatures of up to 130°C, organic additives such as Irganox B 1171 provide good thermal stability with minimum discolouration. At 150°C, this stability can only be achieved with copper-based systems, which are available in the form of Polyads or customized mixtures. Mixes of this type can, unfortunately, lead t...
Kunststoffe international, 2005-11-21, Morphology and Mechanical Properties: Blends of Polyamide 66 and Syndiotactic Polystyrene
...1 were employed to compound blends. Use was made here of a PA 66 of type Zytel EFE 1032 from DuPont, an sPS of type Questra CP QA 101 natural, produced by Dow, and a modifier of type Scona TPSPS 8012 PA, produced by Kometra. All the blends had 0.2% Irganox B 215 from Ciba Specialty Chemicals added to them as a stabiliser. When blends of this type are compounded, the modifier undergoes a chemical reaction with the polyamide (Fig.1) [1 to 2]. To make this reaction as efficient as possible, it must...
Kunststoffe international, 2006-04-25, Filler Dispersion: Ultrasonic Spectroscopy for In-Line Monitoring
...rasound propagation, this could also improve the acceptability of inline ultrasound processes. Besides the studies presented here, the above-described ultrasonic measurement method has already been tested on the following systems: PP/Irganox, SAN/ABS, PP/PA6, PP/hemp and PP/montmorillonite. Acknowledgement The authors are grateful to the Federal Ministry for Economic Affairs and Labour (BMWA) for financially supporting this research project via the “Otto von Guericke” Confederation of Industri...
Kunststoffe international, 2006-05-23, Innovative Potential: Additives Now and in the Future
...rm weathering resistance of pigmented TPO exterior automotive parts [10] (grade: Ciba Tinuvin XT 850), - multifunctional stabiliser system to impart excellent processing and long-term stability to adhesives, e.g. based on SIS/SBS [11] (grade: Ciba Irganox 1726) and - liquid stabiliser system for peroxide-crosslinked PE cables [12] (grade: Ciba Irgastab Cable KV 10). Even with additives such as lubricants and PVC stabilisers, exciting new products are being launched, e.g. metallocene catalysts ar...
Kunststoffe international, 2011-09-23, Reactive Compounding Reduces Sagging Effects
...olecular weight of ??? n = 28,000 g/mol, this PA grade has a low melt viscosity. The product type SMA EF-40 from Cray Valley was used as SMA functional molecule. The bisphenol A diglycidyl ether (EPA) epoxy resin was sourced from Sigma-Aldrich. Irganox 1098 from BASF was used as PA66 thermal stabilizer. For the reactive compounding process, a co-rotating, closely intermeshing twin-screw extruder (type: ZSK26 MC, manufacturer: Coperion) was used at the IKT. Its screw diameter is Da = 25.5 mm, his...
Kunststoffe international, 2013-04-19, Automatic Corrections and Calculations
...t the dispersion of the pigment. In order to illustrate this in the following trial the content of additives was varied widely. For example changing the concentration of the stabilizer (grade: Tinuvin 622 and Irganox 1010, manufacturer: BASF SE, Ludwigshafen, Germany) by just 0.1 % resulted in a color deviation of 1.11 and 0.82 respectively in a polypropylene (PP) compound (grade: Sabic PP 505P, manufacturer: Sabic Deutschland GmbH...
Kunststoffe international, 2016-07-20, Tracking down the Causes
...ives. It is likewise not possible to guarantee that materials are absolutely free of metals. The only solution at present is to chemically bind the metal content. For this purpose, the plastics industry uses e. g. the additive Irganox MD 1024 from BASF. For paints and foams, a new additive must be developed and tested. W SampleC1[at %]C2[at %]C3[at %]C4[at %]C total[at %]1 discolored72187465.82 not discolored8539367.53 sample with discoloration reversed after exposure to light8449368The Authors...
Kunststoffe international, 2016-09-23, Tracking down the Causes
...ding and compression stresses) and was partly responsible for foam discoloration. This migrant adhesive antioxidant in the foam became discolored by contact with iron and ambient moisture. At the same time, the antioxidant used in the foam (normally Irganox 1076 from BASF SE, Ludwigshafen, Germany) also became discolored, but somewhat more slowly.The mechanism for the discoloration of phenolic antioxidants has already been shown to involve conversion of the phenol form into the quinone form (the...
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