Abstract: A touch sensitive control system is disclosed, capable of providing touch activated control for use on substrate surfaces such as walls, flooring, doors, furniture, cabinetry, vehicles and machinery. The system may find particular application in large area substrates such as building walls, floors or ceilings, but may alternatively or additionally find application in any other non-active, non-electronic substrate such as furniture, cupboard doors or drawers, or tables for example. The touch sensitive system comprises at least one electrically active layer having at least one electrical property and configured to be applied to the substrate and an electronic controller. The electrically conductive active layer is configured to have an electrical connection with the electronic controller wherein a differentiated touch on the substrate disrupts the electrical property of the electrically active layer; and wherein the disruption is detected by the electronic controller to provide a control signal.

Abstract: The present invention relates to cellulose mixed esters, processes for preparing these and uses of the cellulose mixed esters, for example in coating compositions. The cellulose mixed esters have glass transition temperatures that fall within an appropriate range to allow for film formation to occur at ambient temperatures and have a total degree of substitution per anhydroglucose unit of about 2.5 to about 3.5; a residual hydroxyl functionality per anhydroglucose unit of 0 to about 0.5; a degree of substitution per anhydroglucose unit by C2-C6 ester groups of about 0.5 to about 2.8; and a degree of substitution per anhydroglucose unit by Ievulinyl ester groups of about 0.2 to about 2.6.