公开(公告)号：US20240198642A1

公开(公告)日：2024-06-20

申请号：US18556780

申请日：2022-05-10

Applicant: TOPPAN INC.

Inventor： Daisuke HAMADA

IPC: B32B27/08 ,  B32B7/02 ,  B32B15/088 ,  B32B15/09 ,  B32B15/20 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B65D65/40 ,  C08L23/12 ,  C08L23/14 ,  C08L53/00

CPC classification number: B32B27/08 ,  B32B7/02 ,  B32B15/088 ,  B32B15/09 ,  B32B15/20 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B65D65/40 ,  C08L23/12 ,  C08L23/14 ,  C08L53/00 ,  B32B2250/40 ,  B32B2307/414 ,  B32B2307/518 ,  B32B2307/7376 ,  B32B2307/758 ,  B32B2439/46 ,  B32B2439/70 ,  C08L2201/10 ,  C08L2203/162

Abstract: The present disclosure relates to a multilayer film including: a first outer layer containing a propylene homopolymer (A) and a propylene-ethylene random copolymer (B) and serving as a heat seal layer; an inner layer containing a propylene-ethylene block copolymer (C) and an ethylene-propylene copolymer elastomer (D); and a second outer layer containing a propylene homopolymer (A) and a propylene-ethylene random copolymer (B), in this order, in which at least one layer of the first outer layer, the inner layer, and the second outer layer further contains a polyphenol compound.

公开(公告)号：US20230202153A1

公开(公告)日：2023-06-29

申请号：US17926930

申请日：2021-05-31

Applicant: TOPPAN INC.

Inventor： Daisuke HAMADA ,  Motokuni TAKENOUCHI ,  Tomoko OOKI ,  Tsuguki NISHIHARA ,  Masafumi HORIUCHI

IPC: B32B27/08 ,  B32B27/32 ,  B32B7/02 ,  B65D65/40

CPC classification number: B32B27/08 ,  B32B27/32 ,  B32B7/02 ,  B65D65/40 ,  B32B2270/00 ,  B32B2307/732 ,  B32B2439/46 ,  B32B2307/414 ,  B32B2307/538 ,  B32B2307/31 ,  B32B2250/242 ,  B32B2250/03

Abstract: A multilayer film including a first outer layer containing 70 to 30% by mass of a propylene homopolymer (A) and 30 to 70% by mass of a propylene/ethylene random copolymer (B) having an ethylene content of 5% by mass or less, an inner layer containing a propylene/ethylene block copolymer (C) and an ethylene/propylene copolymer elastomer (D), and a second outer layer containing 70 to 30% by mass of the propylene homopolymer (A) and 30 to 70% by mass of the propylene/ethylene random copolymer (B) having an ethylene content of 5% by mass or less, in that order.