Improper disposal of PVCs poses a risk of generating hazardous substances. For example, Sony is concerned about the possibility that its small electronic products, in particular, could be collected to obtain valuable materials, and then the unwanted parts could be improperly incinerated and disposed of in landfills, thus causing adverse environmental impacts. In addition, there are also concerns about the environmental and health impact of some of the substances used as plasticizers and stabilizers in PVCs. Although PVCs are not currently regulated by any laws that apply to chemical substances used in electronic products, Sony works to reduce PVC content in individual components.
As a result, Sony does not use PVCs in product packaging materials (with the exception of some packing materials for devices, semiconductors, batteries, and similar items) or in sheets/laminates used for product housings, contactless IC cards, and carrying bags/cases for products (excluding those for professional use). Sony has also successfully replaced PVCs by substitute materials for internal components that are difficult to remove prior to recycling, such as flexible flat cables, insulation plates, and heat-shrink tubes (excluding those for batteries). Also, Sony is working to end the use of PVCs in the housings and internal wiring of small electronic devices (the adoption of alternatives is subject to the ability to resolve issues relating to quality, technology, and supply).
As of the end of July 2017, Sony has replaced PVCs in the following products with alternative materials. For more information, please refer to "Examples of Polyvinyl Chloride (PVC)-Free Products and Brominated Flame Retardant (BFR)-Free Products."