Title:
合わせガラス用のポリビニルアセタール樹脂フィルム
Document Type and Number:
Japanese Patent JP6487131
Kind Code:
B2
Abstract:
A polyvinyl acetal resin film for laminated glass,a viscosity of toluene/ethanol=1/1 (by mass ratio) solution of a polyvinyl acetal resin in a resin composition constituting the polyvinyl acetal resin film with a concentration of 10% by mass, measured at 30 rpm and 20°C by using a Brookfield-type (B-type) viscometer, being 100 to 1000 mPa ·s,the polyvinyl acetal resin film comprising a plasticizer in an amount of 0 to 20% by mass based on a total mass of the resin composition constituting the polyvinyl acetal resin film,the polyvinyl acetal resin film having a thickness of 10 to 350 µm,the polyvinyl acetal resin film exhibiting a mean spacing Sm value of unevenness of at least one side of 500 µm or more, and a ratio Sm/Rz of the mean spacing Sm value of unevenness to a value of ten-point average roughness Rz of at least one side of 200 or more.
Inventors:
Koichiro Isogami
Atsushi Koishikawa
Hirotaka Yasuda
Uwe Keller
Atsushi Koishikawa
Hirotaka Yasuda
Uwe Keller
Application Number:
JP2018558445A
Publication Date:
March 20, 2019
Filing Date:
March 27, 2018
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
C03C27/12; C08L59/00
Domestic Patent References:
| JP2000203901A | 2000-07-25 | |||
| JP2003503236A | 2003-01-28 | |||
| JPH051108A | 1993-01-08 |
Foreign References:
| WO2016052603A1 | 2016-04-07 | |||
| WO2015019438A1 | 2015-02-12 | |||
| WO2015059828A1 | 2015-04-30 |
Attorney, Agent or Firm:
Michiko Matsutani
Kenichi Morizumi
Kenichi Morizumi
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