Bilayer laminate and preformed sheet for use therein

Stock material or miscellaneous articles – Composite – Of polyamidoester

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Details

252182, 26433119, 528 59, 528 67, 428412, 4284244, 4284256, 1563317, 1563314, B32B 2700, C09K 300, B29C 4500, C08G 1878

Patent

active

046524940

ABSTRACT:
Preformed, energy-absorbing, scratch resistant, optical, flexible, and self-healing polyurethane sheets, which are adhesive under the influence of heat and pressure; bilayer glazing laminates and bilayer safety windshields including said sheets; wherein said polyurethane sheet is prepared preferably by reactive-casting on a horizontal support and formed preferably from a polyisocyanate monomer including about 2 to about 10 wt. % of urea groups.

REFERENCES:
patent: 4010311 (1977-03-01), Lewis et al.
patent: 4101529 (1978-07-01), Ammons
patent: 4152350 (1979-05-01), Moehring et al.
patent: 4276386 (1981-06-01), Schwindt et al.
patent: 4434284 (1984-02-01), Rukavina et al.

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