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US4705714A Differentially crosslinked and oriented polyethylene film 失效
差异交联和取向的聚乙烯薄膜

Differentially crosslinked and oriented polyethylene film
摘要:
An oriented film is prepared by crosslinking a sheet of HDPE to provide maximum crosslinking at the surfaces of the sheet and minimum orientation at its middle layer portion, and thereafter heating and stretching the film to obtain an oriented HDPE of high clarity film of improved moisture proof.
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