| 摘要 |
<p>This invention discloses a process for preparing PVB sheeting having a desired uniform adhesivity for glass lamination interlayer applications. The process for preparing PVB sheeting comprises preparing a blend of polyvinylbutyral and a compatible quantity of at least one plasticizer and an adhesion control agent, and extruding the blend to form a sheet. The improvement comprises monitoring the acidity of the sheet and adding water in the sheet forming process as an agent for controlling the acidity and resultant adhesivity of the sheet.</p> |
