发明名称 Multiple layer paperboard laminate
摘要 A non-foil paperboard laminate having excellent flavor barrier with superior heat sealability comprises paperboard having a layer of a heat-sealable, modified polyolefin extrusion coated onto its outer surface, a layer of low density polyethylene polymer extrusion coated onto its inner surface, and a product-contact barrier layer extrusion coated onto the inner layer of low density polyethylene polymer. The product-contact barrier layer may comprise one or more layers of a polymer having low permeability to flavor oils.
申请公布号 US4950510(A) 申请公布日期 1990.08.21
申请号 US19890365860 申请日期 1989.06.14
申请人 WESTVACO CORPORATION 发明人 MASSOUDA, DEBORA F.
分类号 B32B27/10;B65D5/56 主分类号 B32B27/10
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