Method for producing glass laminates with sound attenuating properties
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United States of America Patent
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May 12, 2015
Grant Date -
Aug 14, 2014
app pub date -
Jan 27, 2014
filing date -
Feb 14, 2013
priority date (Note) -
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Abstract
Laminated glass is produced by laminating at least one film A, having a glass transition temperature TA and containing a polyvinyl acetal PA and optionally at least one plasticizer WA, and at least one film B, having a glass transition temperature TB and containing a polyvinyl acetal PB and at least one plasticizer WB, between two glass sheets, wherein, before the lamination process,
- film A has a proportion of plasticizer WA of less than 24% by weight,film B has a proportion of plasticizer WB of at least 24% by weight, andfilm A has a thickness of no more than 30% of the thickness of film B.
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