Laminated safety glass and polymeric laminate for use therein

B - Operations – Transporting – 32 – B

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154/111, 154/122

B32B 17/10 (2006.01) B32B 27/30 (2006.01) C03C 27/12 (2006.01) C08K 5/098 (2006.01)

Patent

CA 2004482

A polymeric laminate for use with a glass layer in a laminated bilayer or anti-lacerative shield application comprises a first layer of moisture tolerant plasticized polyvinyl butyral containing a) adhesion control agent(s) and b) residual hydroxyl content which optimize glass adhesion and optical performance over a range of moisture contents in the first layer likely to be encountered in use, i.e. 0.2 to 0.5 weight % and 2 to 2.8 weight %, such first layer being in face to face contact with a second layer of a clear polymer film or coating having a combination of performance properties desirable for these applications. Preferred second layers are biaxially stretched polyester and thermoset aliphatic polyurethane.

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