Polymeric films and packages produced therefrom
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Sep 4, 2003
app pub date -
Feb 28, 2003
filing date -
Mar 4, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A gas permeable polymeric film laminate comprising two perforate polymeric films bonded together such that there are gas passages between the films from perforations in one film to perforations in the other film, the perforations having a minimum dimension of at least 20 .mu.m and the passages having a maximum dimension of not more than 15 .mu.m. Such films can be used as replacements for non-woven webs in packages consisting of a non-woven web bonded to substantially impermeable polymer webs, thereby avoiding fiber contamination which can occur with the latter.
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