Stock material or miscellaneous articles – Structurally defined web or sheet – Physical dimension specified
Patent
1982-11-03
1984-12-25
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Physical dimension specified
264 41, 264 49, 4283157, B32B 300, B29D 2704
Patent
active
044904312
ABSTRACT:
There is disclosed a substantially skinless microporous polypropylene membrane characterized by having
REFERENCES:
patent: 3426754 (1969-02-01), Bierenbaum et al.
patent: 3679540 (1972-07-01), Zimmerman et al.
patent: 4247498 (1981-01-01), Castro
Davis Michael A.
Vitzthum Gunter H.
Akzona Incorporated
Hall Jack H.
Van Balen William J.
Young Francis W.
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