VERBESSERTE SPLITTERFREIE GLASBEHAELTER

摘要

A container having improved mechanical service strength and shatter resistance comprising a glass container body and a plastic containment coating film overlying the outside surface of the glass body. The mechanical properties of the film are such that, when subjected to tensile testing at room temperature and a film extension rate of 10 in./min., said film exhibits a tensile strength of at least about 300 lbs./sq. in., an elongation of at least about 80% and a modulus of elasticity in tension which is less than about 1,000 lbs./sq. in. substantially throughout the course of the extension of the film. The coating is substantially uniformly adhered to the glass body but with a peel strength of less than about 1.6 lbs./in. The desired peel strength may be provided by use of an adherency modifying primer coating which provides uniform adherence of the containment coating film to the glass body but limits that adherency to the desired peel strength.