Water-impermeable sheet material

Details Water-impermeable sheet material Water-impermeable sheet material

1980-03-14

1982-01-26

McCamish, Marion

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428219, 428237, 428241, 428243, 428286, 428326, 428327, 428330, 428341, 428494, 428495, 428507, 428521, 428492, B32B 2300

Patent

active

043129072

ABSTRACT:
A water-impermeable sheet material capable of preventing formation of water drops thereon, has one or two water-impermeable layers, at least one of which layers holds, on the surface thereof, a water drop-preventing agent in the form of fine solid particles and consisting of at least one hydrophilic but water-insoluble substance, at least a portion of the water drop-preventing agent being exposed to the ambient atmosphere.

REFERENCES:
patent: 1602986 (1926-10-01), Mason

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