Prepressing glass plastic assemblies

Details Prepressing glass plastic assemblies Prepressing glass plastic assemblies

1985-01-29

1985-12-10

Simmons, David

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156104, 156105, 156107, 156312, B32B 3120

Patent

active

045577765

ABSTRACT:
A method of preliminarily pressing a bent assembly comprising a pair of bent glass sheets and a flexible interlayer comprising a first heating step performed without vacuum, a biasing step, an unbiasing step and followed by a second heating step performed simultaneously with an application of vacuum. When the assembly so prepressed is further laminated under heat and pressure, it develops fewer bubbles after a heat stability test involving exposure to high temperature for an extended period than assemblies further laminated under such heat and pressure conditions after a prepressing step that includes passing the assembly between rollers prior to the further lamination step.

REFERENCES:
patent: 2965527 (1960-12-01), Morris
patent: 3249479 (1966-05-01), Boicey
patent: 3852136 (1974-12-01), Plumat
patent: 3971668 (1976-07-01), Pickard et al.
patent: 4367108 (1983-01-01), Valimont et al.

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