公开(公告)号：US20190217586A1

公开(公告)日：2019-07-18

申请号：US16302492

申请日：2017-05-18

Applicant: KURARAY CO., LTD.

Inventor： Hiroshi KAWAKITA ,  Katsuei TAKAHASHI

IPC: B32B27/32 ,  B32B27/30 ,  B32B37/00 ,  B29C45/14 ,  B29C45/16 ,  B29C45/70

CPC classification number: B32B27/32 ,  B29C45/14 ,  B29C45/16 ,  B29C45/46 ,  B29C45/70 ,  B29C2045/177 ,  B32B27/00 ,  B32B27/302 ,  B32B27/308 ,  B32B37/0053 ,  B32B2250/246 ,  B32B2305/72 ,  B32B2323/10 ,  B32B2325/00 ,  B32B2333/12 ,  C08F299/024 ,  C08L53/025

Abstract: A multilayer film having a structure consisting of at least three layers: a polypropylene resin layer (X), an intermediate layer (Y) formed of a thermoplastic polymer composition containing 100 parts by mass of a thermoplastic elastomer (A), which is a block copolymer containing a polymer block (a1) formed of an aromatic vinyl compound unit and a polymer block (a2) formed of a conjugate diene compound unit or a hydrogenated product thereof, and 1 to 50 parts by mass a polypropylene resin (B) and a decorative layer (Z), in which the layers (X) (Y) and (Z) are stacked in this order, is excellent in preform moldability, successfully and firmly adhering to an adherend to decorate, small in warpage during thermal lamination and satisfactory in coextrusion film formability and weather resistance.

公开(公告)号：US20170240739A1

公开(公告)日：2017-08-24

申请号：US15504457

申请日：2015-07-17

Applicant: KURARAY CO., LTD.

Inventor： Seiya SHIMIZU ,  Hirotsugu IDA ,  Kazuhiko MAEKAWA ,  Kenji SHACHI ,  Katsuei TAKAHASHI

IPC: C08L53/00 ,  C08F297/02

CPC classification number: C08L53/00 ,  C08F2/50 ,  C08F8/14 ,  C08F297/026 ,  C08L2201/10 ,  C08L2205/02

Abstract: The invention provides active energy ray curable compositions which exhibit good curability with active energy rays and which have a low viscosity to attain excellent application properties when applied as materials such as adhesives or coatings onto substrates and can give highly flexible cured products upon irradiation with active energy rays. An active energy ray curable composition includes a (meth)acrylic triblock copolymer (A) including a (meth)acrylic polymer block(s) (aA) having an active energy ray curable group containing a partial structure represented by the following general formula (1), and a (meth)acrylic polymer block(s) (bA) having no active energy ray curable groups, and a (meth)acrylic diblock copolymer (B) including a (meth)acrylic polymer block (aB) having an active energy ray curable group containing a partial structure represented by the following general formula (1), and a (meth)acrylic polymer block (bB) having no active energy ray curable groups, the composition having a ratio of Mn (bB)/Mn (bA) in the range of 0.2 to 2.0 wherein Mn (bB) is the number average molecular weight of the (meth)acrylic polymer block (bB) present in the (meth)acrylic diblock copolymer (B), and Mn (bA) is the number average molecular weight of the (meth)acrylic polymer block (bA) present in the (meth)acrylic triblock copolymer (A). (In the formula, R1 is a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms.)