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US 6,649,269 B1Granted
Interlayer composite structure for laminated glass with controlled bonding between the layers and the process for the production of the interlayer structure
AssigneeE. I. Du Pont de Nemours and Company
InventorsThomas Richard Phillips, Guenter Klafka, Ingo Kueppenbender
Life of this patent
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Abstract
A process for the production of multi-ply polyvinyl butyral interlayer having improved separation force whereby multiple plies are combined in a tension controlled process comprising overlaying a layer of polyvinyl butyral sheeting having water drops on its surface with a second layer of polyvinyl butyral sheeting.
Claims5
A process for producing multi-ply polyvinyl butryal sheeting comprising overlaying a layer of PVB sheeting having an array of water drops on its surface with a second layer of PVB sheeting.
Dependencies are inferred from the claim text.