Flexible coated fibrous webs
AssigneeAllied-Signal Inc.
InventorsGary A. Harpell, Dusan C. Prevorsek
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Abstract
A coated web or composite having improved flexibility. The coated web of the present invention comprises at least one layer and preferably at least two layers. The layers comprise a fibrous web located or embedded with polymeric composition. The coated web is flexed sufficiently over at least a portion of the web surface to have improved flexibility properties. The web can be flexed in a single direction along the surface or randomly along the whole surface. Preferably, the web is flexed sufficiently to form a plurality of permanent creases or wrinkles. The coated web has improved flexibility, and at the same time, impact resistant properties, such as ballistic resistance, are substantially maintained compared to an unflexed web.
Claims26
A fibrous web comprising at least one layer comprising unidirectionally oriented fibers coated with a polymer composition, wherein the coated web is fixed sufficiently over at least a portion of the web surface to form a plurality of permanent creases distributed over the web surface and to increase the flexibility of the web.
A fibrous web comprising at least two adjacent fibrous elements, each element comprising a plurality of unidirectionally oriented fibers embedded in a polymer matrix, the fibers in adjacent layers at an angle of from 45.degree. to 90.degree. to each other, the fibrous web is flexed sufficiently over at least a portion of the web surface to form a plurality of permanent creases distributed over the web surface and have a drape ratio of greater than 1.
An article comprising at least one fibrous web comprising at least one layer comprising unidirectionally oriented fibers coated with a polymer composition, wherein the coated web is flexed sufficiently over at least a portion of the web surface to form a plurality of permanent creases distributed over the web surface and to increase the flexibility of the web.
Dependencies are inferred from the claim text.