| 摘要 |
<p>A LAMINATED GLAZING (1) COMPRISING AN INNER PLY OF GLASS (2) AND AN OUTER PLY OF GLASS (3) HAVING A GENERALLY OPAQUE INTERLAYER (4) LAMINATED THEREBETWEEN IS DISCLOSED. WHEN THE INTERLAYER (4), IN A THICKNESS OF 0.76MM, IS LAMINATED BETWEEN TWO PLIES OF GLASS (2, 3), EACH 2.1MM THICK AND HAVING AN LT GREATER THAN 88% (CIE ILLUMINANT A), THE RESULTANT GLAZING (1) HAS AN LT (CIE ILLUMINANT A) OF LESS THAN 40%, A TE (IS09050:E(2003), AIR MASS 1.5) OF LESS THAN 45%; AND AN ACOUSTIC TRANSMISSION LOSS OF GREATER THAN 4OdB IN THE RANGE 3000 TO 4000HZ AT 21ºC.</p> |
