The purpose is to provide a laminated porous film having shutdown characteristics, which are important in terms of ensuring safety, while also having excellent air permeation performance, which contributes to electrical performance, when used a separator f...

The invention provides an adhesive-carrying porous film for use as a battery separator, which comprises: a substrate porous film such that when a probe of a probe penetrating thermomechanical analyzer, said probe having a diameter of 1mm, is placed on the ...

The invention provides an adhesive-carrying porous film for use as a battery separator, which comprises: a substrate porous film such that when a probe of a probe penetrating thermomechanical analyzer, said probe having a diameter of 1 mm, is placed on the...

A battery separator comprises a multi-layered film, individual layers of said film having been bonded together by heat and pressure, having a peel strength of greater than or equal to 40 grams per inch (1.6 g/mm) and a thickness of ≤ 25 microns. A method...

An automotive sandwich panel has a lower layer (1), an intermediate layer (8) and an upper layer (9). The intermediate layer has a lesser area stretch than the lower layer (1). In those areas where there is no intermediate layer (8) the lower layer (1) is ...

A method and apparatus for reducing permeate hydrocarbon emissions from a multilayer plastic fluid tank 10. The strategy for reducing emissions involves heat welding or otherwise applying a low permeation multilayer plastic patch 30 to the pinch off region...