Fabric permeable to ultraviolet radiations

Details Fabric permeable to ultraviolet radiations Fabric permeable to ultraviolet radiations

1977-05-04

1978-09-19

Powell, William A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including interlaminar mechanical fastener

2 67, 2243A, 8 25A, 101470, 139420R, 428397, 428409, 428474, 428480, A41D 700, D03D 1500

Patent

active

041156153

ABSTRACT:
This invention relates to a fabric made from a polymer or of a miXture of polymers having an absorption curve of radiating energy characterized by a minimum absorption between 3,200 A and 4,000 A and an important filtering below 3,200 A, said polymer being eXtruded at a speed allowing an eXtremely quick cooling such that the formation of large crystallites is inhibited while promoting proliferation of crystallites of very small sizes.

REFERENCES:
patent: 2391959 (1946-01-01), Gallowhur
patent: 2444492 (1948-07-01), Blout et al.
patent: 3147582 (1964-09-01), Scharf
patent: 3503106 (1970-03-01), Port et al.

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