In light of the effort to remove phthalates from polymer based products, Hallstar has developed numerous non-phthalate esters based on a variety of synthetic based chemistries. Moving further into environmentally friendly replacements, Hallstar has developed several monomeric and polymeric esters that are synthesized from biobased feedstocks.
Many of these esters were initially developed for biopolymers but much of the chemistry can be applied to traditional elastomers used in hose compounds. This paper will discuss the chemistry of these various feedstocks and evaluations of synthetic and renewable esters in variety of elastomers and thermoplastics.