发明名称 Method of making very high barrier film
摘要 A method of producing an oxygen barrier film, and the resulting film, includes the coextrusion of a multi-layer extrudate having an outside ethylene vinyl alcohol copolymer layer which has been passed through a hot water system to soften and wet the ethylene vinyl alcohol copolymer. The wetted film can be more easily oriented to produce a shrinkable film.
申请公布号 US5035851(A) 申请公布日期 1991.07.30
申请号 US19910644467 申请日期 1991.01.18
申请人 W. R. GRACE & CO.-CONN. 发明人 SCHIRMER, HENRY G.
分类号 B32B27/16 主分类号 B32B27/16
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