Method for laminating porous sheet and coarse mesh reinforcing m

Details Method for laminating porous sheet and coarse mesh reinforcing m Method for laminating porous sheet and coarse mesh reinforcing m

1998-03-31

2000-03-07

Aftergut, Jeff H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156177, 1563082, 1563099, 264 41, 26417113, 264DIG47, B32B 3108

Patent

active

060335092

ABSTRACT:
A method for laminating a porous sheet 1 and a coarse mesh reinforcing material 2 which includes an adhesive layer and is reinforced by drawing, by heat pressing with that adhesive layer in between, in which, (1) the heating temperature during heat pressing is equal to or above the melting point of the adhesive layer and equal to or below the melting point of the porous sheet, (2) a specific relationship is maintained among the difference between the heating temperature and the melting point of the adhesive layer, the difference between the heating temperature and the softening point of the porous sheet, and the heating time, and (3) the unrolling tension of the porous sheet is maintained at 200 to 550 g/mm.sup.2. The method allows a reinforced laminated material that retains moisture permeability and has excellent mechanical strength to be obtained inexpensively without the occurrence of wrinkling or remarkable curling

REFERENCES:
patent: 4929303 (1990-05-01), Sheth

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