Patent ID: 7732042

Claim:
An interlayer film for laminated glasses, wherein a break of 10 mm or longer in length is generated when a laminated glass is formed by sandwiching the interlayer film for laminated glasses between two glasses and a Head Injury Criteria (HIC) value of the laminated glass is measured, which has a three-layers structure, a storage elasticity modulus G′ at 20° C. and a frequency of 5.0×10 1 to 1.0×10 2 Hz in an intermediate layer being at or below a half of a storage elasticity modulus G′ at 20° C. and a frequency of 5.0×10 1 to 1.0×10 2 Hz in one or any of two layers composing the outermost layer, wherein a thickness of one outermost layer being 1.2 or more times larger than that of the other outermost layer.