公开(公告)号：US10246618B2

公开(公告)日：2019-04-02

申请号：US15192276

申请日：2016-06-24

Applicant: ARKEMA FRANCE

Inventor： René-Paul Eustache ,  Mathieu Sabard ,  Yves Deyrail ,  Quentin Pineau ,  Inci Turan-Altuntas ,  Martin Pouzet ,  Atsushi Yoshitake

IPC: B32B7/12 ,  C09J187/00 ,  C08G69/40 ,  C08L77/06 ,  B32B27/08 ,  B32B27/28 ,  B32B27/34 ,  B32B37/06 ,  C08G81/00 ,  C09J5/06

Abstract: The invention relates to a copolymer having polyamide PA blocks and polyether PE blocks, in which PA is of diamine.diacid X.Y type; X, the number of carbons of the diamine, is within the range from 6 to 14, and Y, the number of carbons of the diacid, is within the range from 6 to 18. The invention also relates to the use of the said copolymer in a process of direct adhesion between two TPE materials for increasing the peel strength between these materials.

公开(公告)号：US12097685B2

公开(公告)日：2024-09-24

申请号：US17874647

申请日：2022-07-27

Applicant: SK microworks Co., Ltd. ,  ARKEMA FRANCE

Inventor： Kwangho Jang ,  Kweonhyung Han ,  Jinwoo Park ,  Atsushi Yoshitake

IPC: B32B27/08 ,  B32B17/10 ,  B32B27/28 ,  B32B27/34 ,  B32B37/10 ,  B32B37/20

CPC classification number: B32B27/08 ,  B32B17/10 ,  B32B27/281 ,  B32B27/34 ,  B32B37/10 ,  B32B37/203 ,  B32B2307/412 ,  B32B2307/51 ,  B32B2307/536 ,  B32B2307/538 ,  B32B2307/54 ,  B32B2307/732 ,  B32B2367/00 ,  B32B2377/00 ,  B32B2457/20

Abstract: Example embodiments relates to a film having excellent mechanical properties with excellent optical properties such as refractive index, haze, yellow index, and the like, light transmitting laminate, use as a cover film, a multi-layered electronic device, and the like comprising the same.
The film comprises an elastic layer, the elastic layer has a refractive index of 1.48 to 1.58, a low temperature damage index is a difference of a tensile modulus and a tensile strength at a certain temperature, and the elastic layer has a low temperature index of 1,300 MPa or less.

公开(公告)号：US11969978B2

公开(公告)日：2024-04-30

申请号：US17785593

申请日：2020-12-28

Applicant: SK microworks Co., Ltd. ,  ARKEMA FRANCE

Inventor： Kwangho Jang ,  Kweonhyung Han ,  Jinwoo Park ,  Atsushi Yoshitake ,  Sebastien Merzlic

IPC: B32B27/36 ,  B32B7/12 ,  B32B27/34 ,  B32B27/40

CPC classification number: B32B27/36 ,  B32B7/12 ,  B32B27/34 ,  B32B27/40 ,  B32B2307/306 ,  B32B2307/51 ,  B32B2307/538 ,  B32B2457/20

Abstract: A film, a manufacturing method of the film, a cover film, and a multi-layered electronic device include an elastic layer having a storage modulus index KSM of 20 to 350 Mpa represented by Equation 1 below and a haze of 3% or less, thereby providing the film having substantially low storage modulus variations over a wide temperature range, with good mechanical properties such as excellent elastic recovery force and good optical properties such as low haze, and provide the cover film or the multi-layered electronic device including the same.








K
SM

=


(



SM

-
40


×

SM
80



SM
20


)

-

SM
80






[

Equation
⁢

1

]









Where SMn is a storage modulus (Mpa) measured at a temperature of n° C.