| 摘要 |
<p>The high temperature strength of a heat seal which bonds irradiatively cross-linkable thermoplastic materials together to form a receptacle can be significantly improved by irradiating the receptacle after the seal has been formed. This technique is especially effective for improving the high temperature seal strength of packaging film laminates such as those having a layer of an olefin homopolymer or copolymer and a layer of hydrolyzed ethylene-vinyl acetate copolymer.</p> |
