公开(公告)号：EP3889190A1

公开(公告)日：2021-10-06

申请号：EP19891119.0

申请日：2019-11-26

申请人： Kuraray Co., Ltd.

发明人： SUGII, Hiroaki ,  HIGASHIDA, Noboru ,  TAKEDA, Hideaki

IPC分类号： C08F20/10 ,  C08F265/06 ,  C08L33/04 ,  C08L51/00 ,  C08J5/18 ,  G02B5/30

摘要： The present invention relates to a (meth)acrylic resin composition, containing a (meth)acrylic resin (A) and (meth)acrylic crosslinked rubber particles (B), wherein the (meth)acrylic resin composition has a complex viscosity of 500 to 1300 Pa·s under measurement conditions of 265°C, 10 rad/sec, and 1% strain.

公开(公告)号：EP4324859A1

公开(公告)日：2024-02-21

申请号：EP22788010.1

申请日：2022-03-28

申请人： Kuraray Co., Ltd.

发明人： HIRAOKA, Nobutaka ,  TAKASUGI, Akio ,  NIIMURA, Takuro ,  NAKAHARA, Atsuhiro ,  SUGII, Hiroaki ,  ASANUMA, Yoshiaki

IPC分类号： C08F8/28 ,  B32B17/10 ,  B32B27/28 ,  C03C27/12 ,  C08F216/38 ,  C08L29/14

摘要： The present invention relates to an acetalization product of an ethylene/vinyl alcohol copolymer, comprising: 20 to 80 mol% of an ethylene unit; and 4 to 76 mol% of a vinyl alcohol unit based on a total monomer unit constituting the acetalization product, wherein a degree of acetalization is 5 to 80 mol%, and expression (1): 0.75 ≤ W 0.05h /2f ≤ 1.00 (1) [wherein W 0.05h /2f represents a symmetry factor determined by reversed-phase partition gradient high-performance liquid chromatography analysis with a water-ethanol eluent, according to JIS K 0124:2011], and expression (2): 1.27 ≤ Tm/Tg ≤ 1.35 (2) [wherein Tm and Tg respectively represent a melting peak temperature (kelvin) and an intermediate glass transition temperature (kelvin) measured according to JIS K7121:2012] are satisfied.