Scratch and abrasion resistant UV blocking glass coating

摘要

A resin for making abrasion and scratch resistant UV blocking glass coating. The resin can include an inorganic polysiloxane polymer matrix formed from water-based colloidal silica and tetraethylorthosilicate (TEOS). The resin also can include a bi-functional silanol coupling agent coupled to the inorganic polysiloxane polymer matrix. The resin further can include a UV absorber conjugated to the bi-functional silanol coupling agent. The resin also can include a solvent that is compatible with the colloidal silica, TEOS, bi-functional silanol agent, and UV absorber.

主权项

1. A method for preparing a resin composition, the method comprising:
preparing a first blend of aqueous colloidal silica and a solvent, the solvent comprising 2-propoxyethanol; adding a bi-functional silane coupling agent to the first blend to form a second blend; adding tetraethylorthosilicate (TEOS) to the second blend over a period of time of about one hour to hydrolyze the TEOS to form a third blend of a second silanol, the first silanol, and the colloidal silica; and adding a fourth blend to the third blend to form a fifth blend, the fourth blend comprising 2,2′-dihydroxybenzophone or 2,2′,4,4′-tetrahydroxybenzophenone in the solvent; casting the fifth blend onto a glass substrate, and curing the fifth blend.