Cross-Linker

The use of cross-linkers as additives (such as in vulcanization of rubber) is a well known process for altering and improving both the physical and chemical characteristics of a material. However, the successful use of an additive cross-linker requires complete chemical compatibility between the additive and all the components (resins, fillers etc.) in the formulation that need to be cross-linked. In many cases, such as polymer blends involving polyesters, polyamides or polyolefin's, this is not possible using conventional technology.

Cross-linkers can also be used as adhesives in their own right.

By utilising the highly chemically reactive nature of the Onto® "reactive head group" a range of cross-linking additives have been developed which overcome this hurdle. The Onto® cross-linkers can be added in to both solvent based and 100% solid based formulations and allows the formation of chemical cross-link's in systems which would traditionally be thought of as inert. The Onto® cross-linker is able to form extended 3-dimensional networks between different material types and forms, thereby creating opportunities to develop advanced and bespoke materials.

One specific example is the use of the Onto® cross-linker as an adhesive system in combination with a thermoplastic elastomer (styrene block copolymer).

Other potential examples are the use of the Onto® cross-linker to reinforce thermoplastic materials and also to improve binding in composite structures.