Laminar product and process for preparing the same
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United States of America Patent
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Feb 18, 2003
Grant Date -
N/A
app pub date -
Aug 2, 2000
filing date -
Mar 4, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A laminar structure comprised of at least one layer of glass and a sheet of plasticized PVB containing an adhesion control agent is provided wherein pin point pockets of air which are entrapped in said sheet coalesce and cause delamination of said structure, delayed delamination and associated defects are prevented by adding a nucleating agent with the plasticized PVB by coating the sheet or glass surface with a nucleating agent, by extruding the PVB sheet with the nucleating agent in the composition, or by forming the nucleating agent in situ during the extrusion or lamination process.
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