PROCESS FOR PRODUCING GLASS LAMINATES HAVING LAMINATE INCLUDING PLASTICIZER-CONTAINING POLYVINYL ACETAL CONTAINING LAYER CONTAINING LOW CONTENT OF PLASTICIZER

摘要

PROBLEM TO BE SOLVED: To provide a process for producing glass laminates with sound dampening properties.SOLUTION: Provided is a process for producing a laminated glass by laminating at least one sheet of film A having a glass transition temperature TA comprising a polyvinyl acetal PA and optionally at least one plasticizer WA and at least one sheet of film B having a glass transition temperature TB containing a polyvinyl acetal PB and at least one plasticizer WB between two panes. Before the lamination, the film A contains plasticizer WA in a proportion of 24.1 to 36.0 mass%, the film B contains plasticizer WB in a proportion of 23.9 to 0 mass%, and the film A has a thickness of less than 30% of the thickness the film B.