Process and apparatus for making multiply sheets

Details Process and apparatus for making multiply sheets Process and apparatus for making multiply sheets

1974-07-11

1979-12-25

Kittle, John E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156105, 156107, 156286, 156382, B32B 1704

Patent

active

041804260

ABSTRACT:
Multiply windows are made by assemblying an interlayer of thermoplastic adhesive between plies of the sheet, subjecting the outer surfaces of the plies and the interlayer to vacuum, and subjecting the evacuated assembly to heat and pressure sufficient to bond them together while maintaining the vacuum. Apparatus is provided for this operation which includes an autoclave, means to establish a selected temperature within the autoclave, means to establish a selected pressure within the autoclave, flexible sack means within the autoclave, means to seal the sack means about a multiply sheet, and vacuum means connected to the interior of the sack means.

REFERENCES:
patent: 1909444 (1933-05-01), Worrall
patent: 2673822 (1954-03-01), Dennison et al.
patent: 2948645 (1960-08-01), Keim
patent: 3027288 (1962-03-01), Keslar
patent: 3307999 (1967-03-01), Boicey
patent: 3347723 (1967-10-01), Hill
patent: 3405019 (1968-10-01), Seil et al.
patent: 3493451 (1970-02-01), Beery
patent: 3553054 (1971-01-01), Maus
patent: 3769133 (1973-10-01), Halberschmidt et al.
patent: 3852136 (1974-12-01), Plumat et al.
patent: 3917503 (1975-11-01), Tamura et al.

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