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US 2014/0210128 A1Published application
Polymer interlayers comprising skin layers
AssigneeSolutia Inc.
InventorsChiah-chang Clifford Lin, John Joseph D'Errico, Ping Yuan
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Abstract
The present invention is in the field of polymer interlayers used in multiple layer glass panels, and specifically the present invention is in the field of various performance enhancing agents for polymer interlayers and methods of effectively incorporating such performance enhancing agents into interlayers.
Claims18
A method for making a polymer interlayer, comprising:
- a) extruding a first poly(vinyl butyral) melt to form a poly(vinyl butyral) sheet;
- and
- b) co-extruding a second poly(vinyl butyral) melt to form a first skin layer on the surface of said poly(vinyl butyral) sheet, wherein said second melt contains a first performance enhancing agent and wherein said first skin layer has a thickness of less than 0.15 millimeters and wherein said first melt is substantially free of said performance enhancing agent.
A method for making a polymer interlayer, comprising:
- a) extruding a first poly(vinyl butyral) melt to form a poly(vinyl butyral) sheet;
- and
- b) co-extruding a second poly(vinyl butyral) melt to form a first skin layer on the surface of said poly(vinyl butyral) sheet, wherein said second melt contains a first performance enhancing agent and wherein said first skin layer has a thickness of less than 0.15 millimeters and wherein said first melt is substantially free of said performance enhancing agent;
- and
- c) co-extruding a third poly(vinyl butyral) melt to form a second skin layer on the surface of said poly(vinyl butyral) sheet, opposite to said first skin layer, and having a thickness of less than 0.15 millimeters, wherein said third melt contains a second performance enhancing agent.
2 more elements
Dependencies are inferred from the claim text.