Process of making a polyvinyl butyral composite interlayer for l

Details Process of making a polyvinyl butyral composite interlayer for l Process of making a polyvinyl butyral composite interlayer for l

1975-06-04

1976-09-28

Cannon, J.C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156106, 428210, B32B 2706, B32B 3112, B32B 3130, C03C 2704

Patent

active

039829847

ABSTRACT:
The present invention relates to a polyvinyl butyral composite interlayer for laminated safety glass. A color gradient is printed onto a polyvinyl butyral sheet and the printed surface is then combined to a second sheet of polyvinyl butyral. The composite sheet does not require any dusting to prevent ink strike off and the problem of undesirable ink transfer in rolled sheet material is minimized.

REFERENCES:
patent: 2984161 (1961-05-01), Cook et al.
patent: 3354025 (1967-11-01), Aykanion et al.
patent: 3505160 (1970-04-01), Michaels et al.
patent: 3740281 (1973-06-01), Fujiwara
patent: 3922456 (1975-11-01), Baldridge

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