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Multilayer film
Patent Name Multilayer Film Patent Applicant Nemours Dupont Company Principal Applicant United States Delaware Inventor Y.M. Troychert Application (Patent) No. 02825847.9 Date of Application 2002.12.19 Certification Date Approval Notice No. 1662374 Auditing Announcement Date 2005.08.31 Instruction CD-ROM D0535 Main Classification Number B32B27/10 Classification Number B32B27/10; B65D65/40 Division Original Application No. 2001.12.21 US 60/343,500 Abstract The present invention relates to a multilayer packaging material, It comprises at least one cellulosic fibrous material substrate, and at least one polymer film, said polymer film being attached to said cellulosic substrate, wherein the polymer film is composed of at least one barrier layer comprising an olefin polymer and At least one sealant layer comprising an amorphous polyamide is positioned, the sealant layer being positioned so that it can contact the packaged product. Slaves 1. A multilayer packaging material comprising: a) at least one cellulosic fiber material substrate, and b) at least one polymeric film, which is adhered to the substrate of a), including : i) at least one barrier layer comprising an olefin polymer, and ii) at least one sealant layer comprising an amorphous polyamide, the sealant layer being in contact with the product being packaged. International Application PCT/US2002/040734 2002.12.19 International Publication WO2003/055678 English 2003.7.10 Date of entry into the country Patent agency China Patent Agency (Hong Kong) Co., Ltd. Agency address Fan Chi; Duan Xiaoling