公开(公告)号：US20040082722A1

公开(公告)日：2004-04-29

申请号：US10685853

申请日：2003-10-15

Applicant: Fina Technology, Inc.

Inventor： Michael A. McLeod ,  Gerhard K. Guenther

IPC: C08F008/00

CPC classification number: C08L23/06 ,  C08F8/00 ,  C08F2810/10 ,  C08F2810/20 ,  C08J5/18 ,  C08J2323/06 ,  C08J2323/26 ,  C08L2023/40 ,  C08L2203/16 ,  C08F110/02

Abstract: Disclosed is a method of modifying polyethylene to increase its ability to resist the transmission of water vapor. The polyethylene is modified to increase long chain branching resulting in lower water vapor transmission rates in films prepared with the modified polyethylene. The polyethylene can be modified using peroxides, air and even by admixture with high long chain branching content polyethylene. The polyethylene, particularly when in the form of films, can be used for preparing packaging where sorption of flavor, aroma, or colorant compounds must be minimized.

Abstract translation: 公开了一种改性聚乙烯以提高其抵抗水蒸气透过的能力的方法。 聚乙烯被改性以增加长链支化，导致用改性聚乙烯制备的膜中的较低的水蒸气透过率。 聚乙烯可以使用过氧化物，空气以及甚至通过与高长支链含量聚乙烯的混合来改性。 聚乙烯，特别是当以薄膜形式时，可以用于制备包装，其中香料，香料或着色剂化合物的吸附必须最小化。