Invention Grant
US09206299B2 PVB film with UV protection and low yellow value for laminated safety glass 有权
PVB薄膜具有紫外线保护,低黄色值用于层压安全玻璃

PVB film with UV protection and low yellow value for laminated safety glass
Abstract:
A polyvinyl acetal film contains at least one plasticizer and 0.01-1.5% by weight of at least one UV absorber of Formula 1 where R1, R2, R3, R4, R5, R6, R7, R8 are H, halogen, C1-20 alkyl, hydroxyalkyl, or alkoxyalkyl, andR9, R10 are branched or unbranched C1-50 alkyl, hydroxyalkyl, or alkoxyalkyl groups. The films can be used as museum glazing, display window glazing, as motor vehicle glazing, aircraft glazing, in photovoltaic modules, in LED or OLED screens, televisions, computer screens, big screens, in electrochromic glass elements, photochromic glass elements, and photoelectrochromic glass elements.
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