Recycling PVB is a multi-step process, largely due to the need to separate the PVB from other materials it is typically combined with, such as glass in laminated safety glass. Here’s a general overview of the recycling process:

Collection and Sorting: The first step is collecting and sorting the PVB-containing materials. For instance, in the case of windshields and safety glass, these need to be gathered and sorted separately from other types of glass and waste.

Size Reduction: The collected material is then typically broken down into smaller pieces. This can involve crushing or shredding the glass-PVB laminate to make the subsequent steps more efficient.

Separation of PVB from Glass and Other Materials: Using mechanical separation and chemical and solvent treatment to separate PVB from impurities.

Purification of PVB: After separation, the PVB may undergo further purification to remove any remaining impurities, such as small glass particles or adhesives.

Processing and Modification: The purified PVB can then be processed for reuse. This may involve melting and reforming it into sheets or incorporating additives to modify its properties for specific applications.

Reuse in New Products: Recycled PVB can be used in various applications, such as new safety glass production, new plastic products, or even artificial leather (our star product).