Water impervious materials

Details Water impervious materials Water impervious materials

1985-01-07

1986-06-17

Kendell, Lorraine T.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428287, 428296, 428483, 428516, 428518, 428520, B32B 2700

Patent

active

045956294

ABSTRACT:
A water impervious laminated material is described. A preferred embodiment comprises a three-layer plastic film sandwiched between and fuse bonded to two layers of conjugate fibers having a low melting sheath and a high melting core. The inner layer of the plastic film is relatively high melting while the two outer plies of the film are low melting. The sheaths of the conjugate fibers have been fuse bonded to the plastic film at a temperature below the melt temperature of the cores of the conjugate fibers so that the cores retain their initial fiber-like integrity.

REFERENCES:
patent: 3695967 (1972-10-01), Ross
patent: 4186235 (1980-01-01), Bramwell

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