Patent ID: 9242401
Filing Date: 2016-01-26
CPC Classification: B29C,B29K,B29L,B32B

Claim Text:
1. A method of making a multiple layer glazing panel, the method comprising: providing two rigid glazing substrates; positioning said glazing substrates in a position relative to each other, thereby forming a space devoid of any material between the entire interior surface areas of said glazing substrates; and, injecting a polymer melt into said space between said glazing substrates until the entirety of said space is filled with said polymer melt to create a polymer interlayer, thereby forming said multiple layer glazing panel; wherein said polymer melt comprises poly(vinyl butyral) having a molecular weight of less than 70,000 Daltons; wherein one or both of said rigid glazing substrates are heated to at least 80° C. prior to said injecting; and wherein said polymer melt is injected into said space between said glazing substrates through at least at least one point of injection located at or within the perimeter of said space between said glazing substrates.