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AssigneesFujifilm Manufacturing Europe B.V., FUJIFILM Corporation
InventorsMayur Dalwani, Shigehide Itoh, Erik Vermeer, Maarten Meijlink, Yujiro Itami
Estimating the term…
A composite membrane comprising: a) a porous support; b) a gutter layer; and c) a discriminating layer which satisfies Formula (1): wherein: Ø is <4; x is the arithmetic mean of N measurements of the thickness of the discriminating layer and has a value of between 30 and 150 nm; N is at least 100; xlow_meas is the thickness in nm of an individual measurement of thickness within the N measurements; x>xlow_meas>0; and n is the number of individual thickness measurements where x>xrow_meas, >0 ∅ = x _ ( N - n ) ( n - ∑ i = 1 n ( 1 - 1 x low meas ) ) Formula ( 1 )
A composite membrane comprising:
A process for preparing a composite membrane comprising the step of applying a discriminating layer to a laminate comprising a porous support and a gutter layer, characterised in that a tension >200 N/m is applied to the laminate when the discriminating layer is applied thereto.
Dependencies are inferred from the claim text.