B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 17/10 (2006.01) C08K 5/098 (2006.01)
Patent
CA 2330071
A laminar structure comprised of at least two layers (16, 20) of glass and a sheet (18) of plasticized PVB con-taining an adhesion control additive is provided wherein the difference in adhesion between the PVB interlayer and the glass due to glass orientation is minimized by includ-ing a leveling agent in the bulk or on the surface of the sheet of plasticized PVB or by coating the leveling agent onto the glass prior to laminating.
Cette invention concerne une structure laminaire qui comprend au moins deux couches (16, 20) de verre ainsi qu'une feuille (18) d'un PVB plastifié contenant un additif de modification de l'adhérence. La différence d'adhérence entre la couche intermédiaire de PVB et le verre, qui est due à l'orientation du verre, est minimisée en introduisant un agent de nivellement dans la masse ou à la surface de la feuille de PVB plastifié ou, encore, en appliquant l'agent de nivellement sur le verre avant de le stratifier.
Fugiel Richard Anthony Walter
Turnbull John W.
Wong Bert C.
E.i. Du Pont de Nemours And Company
Torys Llp
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