公开(公告)号：US20240096774A1

公开(公告)日：2024-03-21

申请号：US18262986

申请日：2021-11-11

Applicant: TOYOBO CO., LTD.

Inventor： Tetsuo OKUYAMA ,  Keisuke MATSUO

IPC: H01L23/498 ,  H01L21/48 ,  H05K1/02 ,  H05K1/11 ,  H05K3/46

CPC classification number: H01L23/49822 ,  H01L21/4857 ,  H05K1/0298 ,  H05K1/115 ,  H05K3/4644 ,  H05K2201/0154 ,  H05K2201/09563

Abstract: This method for producing a layered body includes: a step A for preparing a first layered body by layering a first resin film and a patterned metal layer; a step B for preparing a second resin film having indentations corresponding to the metal layer pattern; and a step C for mating the metal layer pattern and the indentations in the second resin film and bonding together the first layered body and second resin film.

公开(公告)号：US20240278537A1

公开(公告)日：2024-08-22

申请号：US18569909

申请日：2022-07-14

Applicant: TOYOBO CO., LTD.

Inventor： Tetsuo OKUYAMA ,  Keisuke MATSUO

IPC: B32B15/08 ,  B32B7/12 ,  B32B15/18 ,  B32B15/20 ,  B32B27/28 ,  C09J11/06 ,  C09J185/00

CPC classification number: B32B15/08 ,  B32B7/12 ,  B32B15/18 ,  B32B15/20 ,  B32B27/281 ,  C09J11/06 ,  C09J185/00 ,  B32B2250/02 ,  B32B2255/06 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/306 ,  B32B2307/538 ,  B32B2307/748

Abstract: The invention provides a laminate roll having excellent long-term heat resistance even when a metal substrate having a high surface roughness is used. In particular the invention provides a laminate roll in which a heat-resistant polymer film, an adhesive layer, and a metal substrate are laminated in this order, said laminate roll being characterized in that: the adhesive layer is derived from a silane coupling agent and/or derived from silicone; the adhesive strength FO of the laminate roll as measured by a 90-degree peel method before a long-term heat resistance test is 0.05-20 N/cm inclusive; and the adhesive strength Ft of the laminate roll as measured by the 90-degree peel method after the long-term heat resistance test is higher than the adhesive strength FO, wherein, for the long-term heat resistance test, the laminate roll is left to stand and stored in a nitrogen atmosphere at 350° C. for 500 hours.

公开(公告)号：US20240336033A1

公开(公告)日：2024-10-10

申请号：US18571852

申请日：2022-07-22

Applicant: TOYOBO CO., LTD.

Inventor： Kaya TOKUDA ,  Tetsuo OKUYAMA ,  Keisuke MATSUO

IPC: B32B15/08 ,  B32B7/12 ,  B32B37/10

CPC classification number: B32B15/08 ,  B32B7/12 ,  B32B37/10 ,  B32B2307/306 ,  B32B2379/08 ,  B32B2457/12

Abstract: Provided is a laminate that has excellent long-term heat resistance even when an inorganic substrate having a high surface roughness is used. This laminate is characterized by having an inorganic substrate, a silane coupling agent layer, and a heat-resistant polymer film in this order, and satisfying the following (A)-(C). (A) The peel strength F0 of the laminate, as measured by a 90° peeling method, is 1.0-20 N/cm. (B) In the surface of the inorganic substrate after peeling the heat-resistant polymer film from the laminate at 90°, the area of a peeled portion on the boundary surface between the inorganic substrate and the silane coupling agent layer is at most 20% of the entire peeled surface. (C) The peel strength F1 of the laminate, as measured by the 90° peeling method after heating in a nitrogen atmosphere at 350° C. for 500 hours, is greater than F0.

公开(公告)号：US20240246319A1

公开(公告)日：2024-07-25

申请号：US18566488

申请日：2022-07-14

Applicant: TOYOBO CO., LTD.

Inventor： Keisuke MATSUO ,  Tetsuo OKUYAMA

IPC: B32B15/08 ,  B32B7/12

CPC classification number: B32B15/08 ,  B32B7/12 ,  B32B2307/7376 ,  B32B2457/12

Abstract: Provided is a laminate that has excellent long-term heat resistance even when a metal substrate having a high surface roughness is used. A heat-resistant polymer film, an adhesive layer, and a metal substrate are layered in this order in the laminate. The laminate is characterized in that the adhesive layer is a silane coupling agent-derived adhesive layer and/or a silicone-derived adhesive layer, the adhesive strength F0 of the laminate prior to long-term heat resistance testing according to the 90 degree peel method is 0.05 N/cm to 20 N/cm inclusive, and the adhesive strength Ft of the laminate after long-term heat resistance testing according to the 90 degree peel method is larger than F0.