Solvay is adding three Rytonpolyphenylene sulfide (PPS) products to its portfolio for food and beverage applications.

Two of the additions – RytonR-4-242 and Ryton R-7-232 PPS – are entirely new Solvay products. The third – RytonR-4-232 PPS – is a previously available product that is now proven safe for food contact. The polymers are each available as natural or black-colored grades suitable for  applications such as food-industry appliance components at temperatures of up to 200°C (392°F). Examples include parts for deep-oil fryers, coffee machines, ovens and microwaves.

Solvay’s Ryton R-4-232 and new Ryton R-4-242 products are both 40% glass fiber-reinforced PPS compounds. The latter product further reportedly offers slightly higher mechanical properties and is based on a production technology that lowers outgassing which, in turn, reduces taste and odor. The Ryton R-7-232 product is a 65% glass/mineral-reinforced compound.

The three new food-contact PPS grades comply with US Food and Drug Administration, NSF51 requirements, as well as the European Union’s EU 10/2011 regulations for use as a component material intended for repeated use in food contact applications.

 All three grades have also received full V-0 Yellow Card ratings under Underwriters Laboratories (UL) UL 94 test methods – at wall thickness of 0.75 mm (0.03 in) for the new Ryton R-4-242 and R-7-232 grades, and at 0.39 mm (0.02 in) for Ryton R-4-232 PPS.

This story is reprinted from material from Solvay, with editorial changes made by Materials Today. The views expressed in this article do not necessarily represent those of Elsevier.