Phosphate esters

The main advantage of phosphate esters is their inherent fire retarding property which is especially needed in demanding applications to improve the behaviour of plasticised polymers. Triaryl phosphates (e.g. Triphenyl Phosphate) and alkyl diaryl phosphates are the two main categories of this kind of plasticisers (US: plasticizers).

While aromatic phosphate esters are typically used in PVC, TPU, thermosets and rubbers, aliphatic phosphates are mainly used in polyurethane foams. In PVC, the phosphate esters offer good gelling behaviour and low temperature performances.

CategoryNameAcronymCasECProduced by membersApplicationsClassification 
Phosphate esterTriphenyl phosphateTPP115-86-6204-112-2Flooring, Wall coveringsNot class.
Phosphate ester2-ethylhexyl diphenyl phosphate1241-94-7214-987-2Not class.
Phosphate esterTris(2-ethylhexyl) phosphate78-42-2201-116-6Not class.