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US 6,028,019 AGranted
Water vapor permeable and waterproof polyester membrane pigmented with carbon particles
AssigneeAkzo Nobel N.V.
InventorsJozef Christiaan Wilhelmus Spijkers, Henricus Joannes Maria Van De Ven
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Abstract
A water vapor permeable, waterproof polyether ester membrane contains 1 to 10% by weight of finely dispersed carbon particles, especially soot particles, having an average size of 5 to 40 nm.
Claims13
A water vapor permeable and waterproof membrane comprising polyether ester and 1 to 10% by weight of said membrane of finely dispersed carbon particles having an average size of 5 to 40 nm.
Dependencies are inferred from the claim text.