公开(公告)号：US20240308196A1

公开(公告)日：2024-09-19

申请号：US18270282

申请日：2022-02-24

Applicant: SHPP GLOBAL TECHNOLOGIES B.V.

Inventor： Yi CHEN ,  Marco NEFS ,  Yuan ZHOU ,  Nadia GROSSIORD

IPC: B32B27/36 ,  B29C48/00 ,  B29C48/08 ,  B29C48/21 ,  B29K23/00 ,  B29K67/00 ,  B29K69/00 ,  B29K105/00 ,  B29L31/34 ,  B32B1/00 ,  B32B27/08

CPC classification number: B32B27/365 ,  B29C48/0014 ,  B29C48/0018 ,  B29C48/0022 ,  B29C48/0023 ,  B29C48/022 ,  B29C48/08 ,  B29C48/21 ,  B32B1/00 ,  B32B27/08 ,  B29K2023/12 ,  B29K2067/00 ,  B29K2067/003 ,  B29K2069/00 ,  B29K2105/0085 ,  B29K2995/004 ,  B29K2995/0077 ,  B29K2995/0082 ,  B29K2995/0089 ,  B29K2995/0097 ,  B29L2031/3475 ,  B32B2250/05 ,  B32B2250/244 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/518 ,  B32B2307/536 ,  B32B2307/54 ,  B32B2307/546 ,  B32B2307/558 ,  B32B2307/704 ,  B32B2307/7376 ,  B32B2457/208

Abstract: A multilayer film can comprise: a plurality of layers, preferably 4 layers to 128 layers, comprising: a polymer A layer comprising a polycarbonate copolymer and a polymer B layer comprising a semi-crystalline biaxially-oriented polyester; and an inter-diffusion region between each polymer A layer and polymer B layer; wherein a differential solubility parameter of polymer A towards polymer B (ΔδAB) is 2.6 MPa1/2≤ΔδAB≤3.0 MPa1/2. Each polymer B layer has a particular crystallinity. The multilayer film can exhibit a combination flexibility and impact resistance.