Glass article having surface coating of boric acid and method for producing the same
AssigneeNippon Electric Glass Co., Ltd.
InventorYoshiharu Miwa
Life of this patent
Estimating the term…
Abstract
Boric acid is used as a surface-protection coating for protecting a desired surface area of a glass article from weathering, contamination by dirt, dust, moisture and others, and streaks and/or cracks due to collision and friction with other objects. The boric acid coating is readily washed out by water upon actual use of the glass article.
Claims11
A glass article having a temporal surface-protection coating, said surface-protection coating being removed in use of the glass article, which is characterized in that said surface-protection coating is of water-soluble boric acid, said boric acid surface-protection coating being capable of being washed out from said glass article by water.
A method for producing a glass article having a temporal surface-protection coating on a glass surface thereof, characterized by steps of:
- preparing the glass article having a glass surface while preparing a boric acid water solution;
- applying said boric acid water solution onto said glass article to form a thin layer of said boric acid water solution on said glass surface;
- and
- drying said thin layer of said boric acid water solution to form a water-soluble surface-protection coating of the boric acid on said glass surface.
Dependencies are inferred from the claim text.