公开(公告)号：US20170198079A1

公开(公告)日：2017-07-13

申请号：US15316690

申请日：2015-06-03

Applicant: DENKA COMPANY LIMITED

Inventor： Masayuki OHISHI ,  Jun YOSHIDA ,  Eiji SATO

IPC: C08F297/04 ,  B65D65/40 ,  C08J5/18 ,  C08L25/06 ,  C08L53/02

CPC classification number: C08F297/04 ,  B65D65/40 ,  C08F297/044 ,  C08J5/18 ,  C08J2325/06 ,  C08J2353/02 ,  C08J2425/06 ,  C08J2453/02 ,  C08L25/06 ,  C08L53/02 ,  C08L101/00 ,  C08L2201/10 ,  C08L2205/025 ,  C08L2205/03

Abstract: To provide a resin composition containing a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene, from which a formed product such as a sheet or a film, having excellent transparency and impact resistance, can be obtained.A resin composition containing a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene, which satisfies the following (A) to (D): (A) the content ratio (mass) of the conjugated diene is from 22 to 32%, (B) the block ratio of the vinyl aromatic hydrocarbon is from 90 to 98%, (C) Mw/Mn (wherein Mw is the weight average molecular weight and Mn is the number average molecular weight) is from 1.1 to 1.6 obtained by GPC by differential refractive index method, (D) the loss tangent (tan δ) obtained by dynamic viscoelasticity measurement has one local maximum value (tan δ (max)) within a temperature range of from −90 to −30° C., and tan δ (tan δ (max+30° C.)) at a temperature higher by 30° C. than the temperature at the local maximum value (tan δ peak temperature) is at least 0.6 relative to tan δ (tan δ (max)) at the temperature at the local maximum value.

公开(公告)号：US20210343265A1

公开(公告)日：2021-11-04

申请号：US17285446

申请日：2019-09-04

Applicant: DENKA COMPANY LIMITED

Inventor： Masayuki OHISHI

IPC: G10K11/168 ,  B32B7/12 ,  B32B27/08 ,  B32B27/18 ,  B32B27/30

Abstract: A laminate including at least layers A to C in this order, wherein an integrated value from 0 mm to 50 mm of displacement calculated from a load-displacement diagram obtained by carrying out a tensile property test method is 1.0 Nm (=J) or more; and an adhesive strength between the layer B and the layer C is 10 N/25 mm or more.