Dust Less Blends

Traditionally antioxidant packages in most polyolefin applications have been based upon the Phenol / phosphalte blends available in the market, the so called binary or 'B-blends'.

These blends, which are fixed phenol:phosphate ratio's, are not necessarily at the optimum cost-performance ratio for the application in question, whereas, using DLB's, it is possible to have the ratio of additives set at the preferred point to take advantage of additive synergies.

Traditionally antioxidant packages in most polyolefin applications have been based upon the Phenol / phosphalte blends available in the market, the so called binary or 'B-blends'.

These blends, which are fixed phenol:phosphate ratio's, are not necessarily at the optimum cost-performance ratio for the application in question, whereas, using DLB's, it is possible to have the ratio of additives set at the preferred point to take advantage of additive synergies.

If MFI is the only performance criteria, i. e. colour and long therm heat aging are unimportant, and the phenol and phosphate are similarly priced, the the logical position would be to use the ratio which leads to the minimum MFI value.

On the other hand, if one additive is substantially higher priced than the other, then a higer loading of a blend rich in the less expensive additive could produce the same performance at a lower cost. The use of DLB affords the opportunity to optimize the additive blend ratio and cos.