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AssigneeSekisui Chemical Co., Ltd.
InventorsTokushige Shichiri, Jiro Miyai, Akihiko Bando, Kiyofumi Toyama, Yoshio Aoshima, Isei Sannomiya, Minoru Nakajima
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The present invention has it for its object to provide an interlayer film for laminated glass and a laminated glass which shows a much decreased extent of blushing of the peripheral region thereof even when placed in a high-humidity atmosphere, without compromise in those fundamental performance characteristics which are required of laminated glass, such as transparency, weather resistance, adhesion and penetration resistance. The present invention is related to an interlayer film for laminated glass comprising a plasticized poly(vinyl acetal) resin and having the haze after 24 hours of immersion is not more than 50% when said interlayer film with a thickness of 0.3 to 0.8 mm is immersed in water at 23° C.
An interlayer film for laminated glass comprising a plasticized poly(vinyl acetal) resin and a sodium salt wherein the sodium salt in said interlayer film has a particle diameter of not greater than 5 μm and said interlayer having the haze after 24 hours of immersion of not more than 50% when said interlayer film with a thickness of 0.3 to 0.8 mm is immersed in water at 23° C.
An interlayer film for laminated glass comprising a plasticized poly(vinyl acetal) resin and a potassium salt wherein the particle diameter of the potassium salt in the interlayer film is not greater than 5 μm and said interlayer having the haze after 24 hours of immersion of not more than 50% when said interlayer film with a thickness of 0.3 to 0.8 mm is immersed in water at 23° C.
An interlayer film for laminated glass comprising a plasticized poly (vinyl acetal) resin and at least one member selected from the group consisiting of alkali metal salts and alkaline earth metal salts wherein the alkali metal salt has a particle diameter of not greater than 3 m and the alkaline earth metal salt has a particle diameter of not greater than 3 m.
The interlayer film for laminated glass comprising plasticized poly(vinyl acetal) and a sodium salt wherein the sodium salt in said interlayer film has a particle diameter of not greater than 5 μm.
An interlayer film for laminated glass comprising a plasticized poly(vinyl acetal) and a potassium salt wherein the particles diameter of the potassium salt in the interlayer film is not greater than 5 μm.
An interlayer film for laminated glass comprising a plasticized poly(vinyl acetal) and a potassium salt wherein the particle diameter of the potassium salt in the interlayer film is not greater than 5 μm and the concentration of potassium in the interlayer film is not greater than 100 ppm.
Dependencies are inferred from the claim text.