公开(公告)号：WO2016030284A1

公开(公告)日：2016-03-03

申请号：PCT/EP2015/069210

申请日：2015-08-21

Applicant: KURARAY EUROPE GMBH

Inventor： KELLER, Uwe ,  MUGURUMA, Shinichi ,  HANNING, Detlef ,  ROGALL, Jan Denis ,  KISHIMOTO, Keisuke

IPC: B29C47/00 ,  B29C43/22 ,  B29C59/02 ,  B29C59/04 ,  B32B17/10

CPC classification number: B29C47/0061 ,  B29C43/222 ,  B29C47/0004 ,  B29C47/0021 ,  B29C47/92 ,  B29C59/005 ,  B29C59/022 ,  B29C59/04 ,  B29C2059/023 ,  B29C2947/92514 ,  B29C2947/92704 ,  B29C2947/9278 ,  B29C2947/92904 ,  B29C2947/92923 ,  B29C2947/92942 ,  B29K2029/14 ,  B29L2007/008 ,  B32B17/10587 ,  B32B17/10596 ,  B32B17/10761

Abstract: The invention is directed to a process for embossing a film comprising plasticized polyvinyl acetal with a roughness Rz on at least one surfaces of 20 to 100 μm by the process steps of a. extrusion of plasticised polyvinyl acetal to a film with a stochastic roughness of the surfaces of Rz = 1 to 70 μm, b. embossing of at least one surface of the film obtained in step a) with channels having a depth of 5 - 50 μm, a width of 10 - 200 μm and a pitch of 50 - 2500 μm, wherein c. the surface roughness of the elevations between the channels is at most 20% lower as obtained in step a).

Abstract translation: 本发明涉及一种通过a的工艺步骤对含有20-100μm的至少一个表面上的粗糙度Rz的增塑聚乙烯醇缩醛进行压印的方法。 b。将塑化的聚乙烯醇缩醛挤出到具有Rz = 1至70μm表面的随机粗糙度的膜上，b。 在步骤a）中获得的膜的至少一个表面的压纹具有深度为5-50μm，宽度为10-200μm，间距为50-2500μm的通道，其中c。 通道之间的高度的表面粗糙度在步骤a）中获得的最低20％。

公开(公告)号：WO2022171317A1

公开(公告)日：2022-08-18

申请号：PCT/EP2021/076329

申请日：2021-09-24

Applicant: KURARAY EUROPE GMBH

Inventor： MUGURUMA, Shinichi ,  OOMOTO, Hideki

IPC: B32B17/10

Abstract: The present invention relates to drying processes for composite films comprising a polyvinyl acetal on a carrier as well as to composite films and polyvinyl acetal films obtained in such processes.

公开(公告)号：WO2022063962A1

公开(公告)日：2022-03-31

申请号：PCT/EP2021/076320

申请日：2021-09-24

Applicant: KURARAY EUROPE GMBH

Inventor： KELLER, Uwe ,  STEUER, Martin ,  MUGURUMA, Shinichi ,  OOMOTO, Hideki ,  MUMMY, Florian

IPC: B32B17/10 ,  C08J5/18 ,  C08J7/04 ,  C09D11/02

Abstract: The present invention relates to a composite film comprising a polyvinyl acetal with an obscuration area which is provided on a carrier film.