The Rubber Chemicals business unit of Germany-based Lanxess chemicals group has expanded its rubber product portfolio.

The antioxidant Vulkanox HS HPG (High Purity Grade) is characterised by a particularly low content of primary amines and is said to have a particularly favourable effect on both the vulcanisation behaviour of the rubber compound and the stability of insoluble sulfur. The special oligomer ratio in Vulkanox HS HPG also optimises its effect as an antioxidant.