Interlayer polyvinyl butyrol film for laminated glass

Details Interlayer polyvinyl butyrol film for laminated glass Interlayer polyvinyl butyrol film for laminated glass

C - Chemistry, Metallurgy

08

L

18/1052, 154/111

C08L 29/14 (2006.01) B32B 17/10 (2006.01) C08K 5/103 (2006.01) C08K 5/11 (2006.01)

Patent

CA 1201235

A B S T R A C T An interlayer film for a laminated glass, which comprises polyvinyl butyral and a plastecizer ad has a T peel strength at 20°C of not more than 0.5 kg/cw, said polyvinyl butyral satisfying the following expression V?-3X + 486 wherein X is the degree of butyralization in mole % and Y is the half-value width in cm-1 of hydroxyl absorption in the infrared absorption spectrum of the polyvinyl butyral in which the ordinate represents the transmittance and the abscissa represents the wave number.

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