Invention Grant
US09028644B2 Method for producing glass laminates with sound attenuating properties 有权
具有声衰减特性的玻璃层压板的制造方法

Method for producing glass laminates with sound attenuating properties
Abstract:
Laminated glass is produced by laminating at least one film A, having a glass transition temperature TA and containing a polyvinyl acetal PA and optionally at least one plasticizer WA, and at least one film B, having a glass transition temperature TB and containing a polyvinyl acetal PB and at least one plasticizer WB, between two glass sheets, wherein, before the lamination process, film A has a proportion of plasticizer WA of less than 24% by weight, film B has a proportion of plasticizer WB of at least 24% by weight, and film A has a thickness of no more than 30% of the thickness of film B.
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