Akcros Chemicals Inc. (USA) organophosphites are important co-stabilisers, especially when used in combination with Barium/Zinc and Calcium/Zinc systems in PVC. They are also well established Secondary Antioxidants reducing discoloration in the processing of other organic materials such as PP, PE and PU. They are marketed under the Interstab® tradename.
| Product name | Description |
|---|
| AKCROSTAB CH-300 | Akcrostab CH-300 is an organo-phosphite (phenyl didecyl phosphite) auxiliary heat and light stabilizer with a phosphorus ontent of 7.1% |
| AKCROSTAB CH-301 | Akcrostab CH-301: liquid alkyl-aryl phosphite chelator, di-phenyl isodecyl phosphite; Improves early and long-term color hold in general purpose vinyl formulations. CAS# 26544-23-0. CH-301 is compatible with most liquid mixed metal stabilizers. Phosphorus content – 8.3%. |
| INTERSTAB CH-55 | Interstab CH-55 is a FDA compliant phosphite chelator, TNPP (tris- nonylphenyl phosphite.) CH-55 is considered safe for use in the processing of food contact plastic articles according to the provision of 21 CFR 178.2010. Interstab CH-55 is generally used in combination with non-toxic powder or paste stabilizers such as Interstab CZ-19A or CZ-11 to improve early color and long-term stability of calendered or extruded non-toxic PVC formulations. CAS# 26523-78-4 |