GLS Corp, a global leader in the development, manufacture and supply of high-performance, custom-formulated thermoplastic elastomers (TPEs), recently introduced a new family of TPEs based on the trademarked Infuse olefin block copolymers (OBC) from the Dow Chemical Company.

The new Dynalloy OBC injection-moulding and blow-moulding grades allow GLS to offer customers a broad array of standard and customised TPE alloys for a wide range of applications. With the new Dynalloy line, GLS has expanded the existing property and application range of OBC technology with exceptional softness, unique feels, a wider range of flow characteristics in injection-moulding, and introduced a new blow-mouldable grade range.
Dynalloy  OBCs offer a silky soft touch feel, excellent colourability, isotropic shrinkage, and flow characteristics enabling use in complex moulds with long flow paths.
Walter Ripple, vice president of global sales and marketing for GLS Corp, said: “We are very pleased to be selected by The Dow Chemical Company as a global TPE compounding partner to help them expand the application range of their newly introduced Infuse olefin block copolymers. This new class of TPEs is a significant complement to GLS’s portfolio of customisable materials, and offers huge potential for both standalone and overmoulding applications. They enable us to offer customers TPE characteristics that were not previously available.”
The five standard injection-moulding grades of Dynalloy OBC include opaque and translucent materials and provide hardness levels ranging from 60 Shore A down to a gel-like 5 Shore A. They offer excellent colourability as well as a non-tacky, soft touch feel that avoids dust pick-up. Other performance highlights include improved compression set and creep resistance. In addition, GLS utilised the unique rheology characteristics of OBC to formulate a unique soft feel and flexible blow-moulding grade with a 50 Shore A hardness that can be customised for higher or lower softness to meet specific market needs.
In addition to property enhancements, GLS’ new line of Dynalloy OBCs can be formulated for optimised flow characteristics to fill complex moulds with long flow paths, providing a unique isotropic shrinkage characteristic. Most grades are suitable for two-shot and insert overmoulding with polypropylene.
Target markets include consumer and office products, hardware, food packaging, and medical for applications such as comfort grips for writing instruments, cosmetic items, prosthetics and overmoulding applications with fabric.