Strong in styrenics
Standard antioxidant for HIPS and ABS, added during or after polymerization.
SUNNOX® 245 is a hindered phenolic primary antioxidant favored in HIPS, abdos, POM, polyamide and polyurethane. It gives processing and long-term thermal protection with good color retention.
Antioxydant 245 (triethylene glycol bis[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate]) combines good compatibility in polar polymers with low color formation. It is widely used in styrenic polymers during and after polymerization, in POM and PA compounds, and in PU systems.
Standard antioxidant for HIPS and ABS, added during or after polymerization.
Works well in POM, PA and PU where some phenolics bloom.
Low tendency to discolor during processing.
| Paramètre | Valeur typique |
|---|---|
| Nom du produit | Antioxydant 245 |
| Marque | SUNNOX® 245 |
| Numéro CAS. | 36443-68-2 |
| Nom chimique | Triethylene glycol bis[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate] |
| Formule moléculaire | C34H50O8 |
| Masse moléculaire | 586.8 |
| Apparence | White crystalline powder |
| Point de fusion | 76–79 °C |
| Essai | ≥98 % |
| Matière volatile | ≤0,5% |
| Cendre | ≤0,1% |
Spécification typique. Chaque envoi est fourni avec un COA de lot; les limites applicables à votre commande sont confirmées dans le devis et le contrat.
Pick an application to see how 245 is normally used and what to confirm before your trial.
Added during polymerization or compounding.
Long-term thermal protection in POM and PA compounds.
Used in TPU, PU systems and PVC as a non-discoloring antioxidant.
| Votre exigence | Ce qui fonctionne habituellement |
|---|---|
| Stabilité de la couleur et de l'écoulement à l'état fondu pendant l'extrusion ou le moulage | Phosphite antioxydant secondaire (168) avec un primaire phénolique |
| Vieillissement thermique à long terme en service | Primaire phénolique à haut poids moléculaire (1010), souvent avec un thioester (DLTDP / DSTDP) |
| Couche mince, fibre, mélange à bas point de fusion | Phénolique à bas point de fusion (1076) pour une dispersion facile |
| Traitement répété / contenu recyclé | Relever la part de phosphite dans le mélange et vérifier le jaunissement après chaque passage |
| Stockage humide ou long transit | Phosphite résistant à l'hydrolyse tel que 168; garder les sacs scellés |
| Articles à contact alimentaire | Ask for the grade-specific food-contact statement before trials |
| Remplacement d'une note existante | Envoyez votre TDS ou COA actuel; we match on the parameters you approve |
Faites glisser ou faites défiler horizontalement pour voir toutes les colonnes →
| Produit | Taper | Mol. poids | Point de fusion | Emploi principal |
|---|---|---|---|---|
| SUNNOX® 245 | Phénol encombré · primaire | 586.8 | 76–79 °C | Styrenics, POM, Pennsylvanie, Unité centrale |
| SUNNOX® 1010 | Phénol encombré · primaire | 1177.6 | 110–125 °C | Protection thermique à long terme |
| SUNNOX® 1098 | Hindered phenol · amide | 636.9 | 156–161 °C | Polyamide and fiber stabilization |
| SUNNOX® 168 | Phosphite · secondaire | 646.9 | 183–187 °C | Stabilité du traitement, Couleur |
| SUNNOX® 1076 | Phénol encombré · primaire | 530.9 | 50–55 °C | Protection à long terme, dispersion facile |
Définissez les niveaux dans votre propre essai. Le bon niveau dépend de la résine, résidu de catalyseur, température de traitement et durée de vie. Les antioxydants primaires et secondaires effectuent des tâches différentes et ne sont pas interchangeables.
25 kg net bags or cartons with a PE inner liner. Palletized.
Keep sealed in a cool, sec, ventilated place away from heat and direct sun. See the SDS for full handling details.
Regular grades are usually in stock. For large volumes, lead time is confirmed in the quotation. We quote FOB and CIF.
Yellowing or melt-flow change during processing points to the phosphite share; embrittlement or cracking after months in service points to the phenolic and thioester share. Note recycled content and the number of extrusion passes.
Most polyolefin packages start from a phenolic primary plus a phosphite secondary, then adjust. Send your current package and we suggest a starting blend for the trial instead of changing several variables at once.
For powders: essai, melting range, volatiles and light transmittance at 425/500 nm (a direct read on color). Ask for the same parameters on our COA that appear on your incoming-inspection sheet.
Agree packaging, monthly volume, destination port and required documents up front. A matching CAS number alone does not qualify a new source; run your trial and keep the approved lot COA as the reference.
Start with your polymer, quantité et destination. Add your current grade or specification and we will quote against it.
| Information | Exemple |
|---|---|
| Polymer / Material | PP, PE, abdos, composé, mélange maître |
| Application | Injection molding, extrusion, film, fibre |
| Current additive | Grade or supplier you use today |
| Spécification requise | Your TDS, COA or key limits |
| Quantité | Commande à l'essai / mensuel / volume annuel |
| Emballage | Standard 25 kg or specific requirement |
| Destination | Pays et port |
| Documents nécessaires | COA, FDS, ATTEINDRE, food-contact statement |
High-MW hindered phenolic primary antioxidant for long-term thermal protection with low volatility.
Voir le produit →Amide-type phenolic antioxidant built for polyamides and fiber, with good color during processing.
Voir le produit →Hydrolysis-resistant phosphite secondary antioxidant for color and melt-flow protection during processing.
Voir le produit →Low-melting hindered phenolic primary antioxidant, easy to disperse in film and compounding.
Voir le produit →It is compatible with styrenic polymers and keeps color well during processing, which is why it is a standard choice there.
Le niveau dépend de votre polymère, épaisseur de la pièce, autres additifs et conditions d'essai, alors mets-le dans ton propre essai. La TDS est disponible sur demande.
Oui. Adding 168 or another phosphite improves processing color and melt stability.
Oui. Tell us the polymer, the test you plan to run and the quantity you need. Samples ship with a COA so you can compare the lot against your current material.
Send us the agreed specification and the COA showing the difference (parameter, unité et méthode de test). We check it with the production batch record before you accept the material, and replace or re-test where the lot is out of specification.