This week the US Patent & Trademark Office released a patent application from Apple that relates to brand new protective coatings being inserted to Apple apparatus later on that will protect against damage to home structures, transparent members associated with optical part windows and screens, along with other apparatus structures.
The coatings may incorporate a binder material such as polymer (occasionally known as a matrix or polymer matrix) and may comprise particles embedded inside the binder. The particles could have high hardness to improve the durability of these coatings that are .

Patently Apple: