PL370403A1

Film, laminated sheet and methods of making same

Abstract

A method of making a microporous laminate sheet having a first film layer and a second layer. The first film layer includes a pore initiator and is bonded to the second layer in order to form a laminate sheet. The laminate sheet is then stretched using at least one CD intermeshing stretcher (28) and at least one MDO stretching unit (29). Methods of making a microporous film laminate are also provided, along with an apparatus for stretching a film or laminate.

Term

Term ended

Projected expiry passed 24 February 2023, 3.6 years ago.

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7 priority claims, no other members on record

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Priority claims7

Priority claims
DocumentOfficeKindDate
35887102United States of AmericaP
35887102United States of AmericaP
0305640United States of AmericaW
0305640United States of AmericaW
0260358871
US20020358871P
WO2003US05640