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US 2024/0217227 A1Published application
Methods and devices for mechanical separation of multilayer interlayers
AssigneeSolutia Inc.
InventorsSUNGKYUN SOHN, GARY MATIS, NICHOLAS EDWARD KEEN, MICHAEL LEE STRICKLER
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Abstract
Processes are disclosed for separating a first layer from a remainder of a multilayer interlayer sheet, in which the multilayer sheet is heated, and thereafter the first layer is separated from the remainder of the multilayer interlayer sheet by pulling the first layer and the remainder of the multilayer interlayer sheet in different directions, in a defined orientation.
Claims16
(canceled)
A continuous process for separating a first layer from a remainder of a multilayer interlayer sheet, the process comprising:
- a. heating the multilayer sheet to a temperature from about 25° C. to about 70° C.;
- and
- b. thereafter separating the first layer from the remainder of the multilayer interlayer sheet by pulling the first layer and the remainder of the multilayer interlayer sheet in different directions in an orientation,
- wherein an angle α is defined by the first layer and the multilayer sheet at a separation point, an angle β is defined by the multilayer sheet and the remainder of the multilayer sheet at the separation point, and an angle γ is defined by the first layer and the remainder of the multilayer sheet at the separation point, wherein the following formulas are satisfied:
- β
- /
- α
- ≥
- 1
- 30
-
- °
- ≤
- γ
- ≤
- 180
-
- °
- α
- +
- β
- +
- γ
- =
- 360
-
- °
- ;
- and
- wherein the orientation is maintained during the continuous process.
27 more elements
Dependencies are inferred from the claim text.