公开(公告)号：EP3029090A4

公开(公告)日：2017-04-12

申请号：EP13890566

申请日：2013-07-31

申请人： KURARAY CO

发明人： YUI TAIGA ,  KUSUDOU TAKESHI ,  TAKASHITA SACHIKO ,  ASADA MITSUNORI

IPC分类号： C08J5/18 ,  C03C27/12 ,  C08L29/14

CPC分类号： C08J5/18 ,  B32B17/10577 ,  B32B17/10761 ,  B32B2457/12 ,  C08J3/18 ,  C08J2329/14 ,  C08K5/103

摘要： An object is to provide a polyvinyl acetal film which has excellent transparency and can suppress a thermal cracking phenomenon. The above object is achieved by providing a polyvinyl acetal film in which a ratio between a composite modulus (GPa) of the highest part in a convex part and a composite modulus (GPa) of the lowest part in a concave part on a surface of a film on a side in contact with glass, calculated by a nanoindentation measurement using a scanning probe microscope, is 0.90 or less, when a laminated glass is formed. In addition, the above object is achieved by providing a polyvinyl acetal film in which a ratio between a hardness (GPa) of the highest part in the convex part and a hardness (GPa) of the lowest part in the concave part, calculated by the SPM nanoindentation measurement, is 0.90 or less.

公开(公告)号：EP3219684A4

公开(公告)日：2018-07-04

申请号：EP15858658

申请日：2015-11-10

申请人： KURARAY CO

发明人： KUSUDOU TAKESHI ,  KOBAYASHI TAKUYA ,  YUI TAIGA ,  ASADA MITSUNORI ,  KAMATA YOHEI ,  ISOUE KOICHIRO

IPC分类号： C03C27/12 ,  B32B17/10 ,  B32B25/08 ,  E06B3/66

CPC分类号： B32B25/08 ,  B32B17/10036 ,  B32B17/1055 ,  B32B17/10577 ,  B32B17/10587 ,  B32B17/10724 ,  B32B17/10743 ,  B32B17/10761 ,  B32B17/1077 ,  B32B17/10788 ,  B32B25/042 ,  B32B2307/30 ,  B32B2309/105 ,  E06B3/66 ,  E06B3/6707 ,  E06B3/6715

摘要： An object of the present invention is to provide a laminate with excellent sound insulating properties and bending strength and a laminated glass using the same. In addition, another object of the present invention is to provide a laminate and a laminated glass in which a lowering of sound insulating performance in a high-frequency region to be caused due to a coincidence phenomenon is suppressed, and a time-dependent change of sound insulating performance after preparation of the laminated glass is small, and which are excellent in sound insulating properties over a broad temperature range. The present invention is concerned with a laminate comprising a layer A including a composition containing a resin having a peak at which a tan ´ as measured by conducting a complex shear viscosity test under a condition at a frequency of 1 Hz in accordance with JIS K 7244-10 is maximum, in the range of from -40 to 30°C; and a plurality of layers B, the layer A being laminated between at least two of the layers B, in which a shear storage modulus at a temperature of 25°C as measured by conducting a complex shear viscosity test under a condition at a frequency of 1 Hz in accordance with JIS K 7244-10 is 1.30 MPa or more.

公开(公告)号：EP2253666A4

公开(公告)日：2011-03-09

申请号：EP09710464

申请日：2009-02-12

申请人： KURARAY CO ,  HYOGO

发明人： KISHI HAJIME ,  KUNIMITSU YUMI ,  IMADE JIN ,  OSHITA SHINYA ,  MORISHITA YOSHIHIRO ,  ASADA MITSUNORI

IPC分类号： C08L63/00 ,  C08G59/00 ,  C08G59/24 ,  C08G59/62

CPC分类号： C09J163/00 ,  C08F220/14 ,  C08F297/026 ,  C08L53/00 ,  C08L63/00 ,  C08L2666/04 ,  C08F2220/1808