US 6,982,296 B2 | ||
PVB film containing a plastifying agent | ||
Uwe Keller, Siegburg (Germany); and Holger Stenzel, Hennef (Germany) | ||
Assigned to Kuraray Specialities Europe GmbH, Frankfurt (Germany) | ||
Appl. No. 10/481,238 PCT Filed Jun. 19, 2002, PCT No. PCT/DE02/02231 § 371(c)(1), (2), (4) Date Aug. 12, 2004, PCT Pub. No. WO02/102591, PCT Pub. Date Dec. 27, 2002. |
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Claims priority of application No. 101 29 422 (DE), filed on Jun. 19, 2001. | ||
Prior Publication US 2004/0249068 A1, Dec. 09, 2004 | ||
Int. Cl. B32B 9/04 (2006.01) |
U.S. Cl. 524—315 | 16 Claims |
1. A plasticized foil based on a partially acetalized polyvinyl alcohol and suitable as an intermediate layer in a laminated
safety glass, comprising:
a) 60–85% by weight of partially acetalized polyvinyl alcohol,
b) 14–39% by weight of a plasticizer, and
c) 1–10% by weight of one or more non-ionic surfactants as an additive increasing the solubility of the plasticizer in the
partially acetalized polyvinyl alcohol, wherein all weight percents are based on the total foil.
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