Process of making microporous film

Details Process of making microporous film Process of making microporous film

1997-02-28

1999-08-17

Tentoni, Leo B.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 78, 15624411, 15624417, 264 459, 264 49, 264 51, 264444, B29C 6508, B29C 6720

Patent

active

059388749

ABSTRACT:
A microporous film can be made by adding a foaming agent to the components of a film material to create bubbles in the film. The microporous film can also be made by adding filaments to the components of the film material and dissolving the filaments to create the pores. In either process, the size of the pores can be controlled to be no greater than 0.027 .mu.m.

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