DuPont and Aptar work together on cosmetic pump

Dispensing systems manufacturer Aptar and DuPont Performance Materials have announced that as part of the companies’ continued collaboration they will transition to DuPont’s Crastin polybutylene terephthalate (PBT), which has been specifically developed for Aptar’s manufactured cosmetic pumps.

Crastin is a high-performance and chemical-resistant polymer that offers significant added-value to the technical process of developing cosmetics pumps for creams, foundations, and liquid make-up.

Aptar found that one of the benefits of using Crastin PBT for developing cosmetics pumps, compared to the PBT grade previously used, is its capacity to provide enhanced stability throughout the different cycles of the injection moulding process. Securing stability of the injection moulding process has been a challenge to the industry, especially as the parameters of the injection machine can shift over time. The dimensional and mechanical properties of Crastin PBT mitigates against this problem. In a similar vein, Crastin PBT contributes to increased stability of the different components of the pump and ensures consistency of dimensions.

Alexandra Fabbro, EMEA marketing development leader of Performance Materials at DuPont, said: “We have an excellent on-going collaboration with Aptar. This has driven us in the right direction to solve a complex problem around the processability and formation of their pumps.”

More information from DuPont International Sarl, 2 Chemin du Pavillon 1218, Le Grand Saconnex, Switzerland. Tel: 41 22 717 58 53. Email: info@dupont.com. Web: dupont.com.