公开(公告)号：US12015094B2

公开(公告)日：2024-06-18

申请号：US17958948

申请日：2022-10-03

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kosuke Saeki ,  Shinya Yoneda ,  Jun Tanaka ,  Hiroaki Tamaki ,  Shinsuke Nagino ,  Naohiro Obonai

IPC: H01L31/044 ,  B32B27/08 ,  B32B27/32 ,  B32B37/15 ,  H01L31/048 ,  H01L31/049

CPC classification number: H01L31/0481 ,  B32B27/08 ,  B32B27/32 ,  B32B37/153 ,  H01L31/0488 ,  H01L31/049 ,  B32B2307/72 ,  B32B2457/12

Abstract: To provide a sealing material sheet for a solar-cell module that has high productivity without performing crosslinking processing, and has a high tensile shear adhesion force at normal temperature at a high level in addition to heat resistance and molding characteristics. A sealing material sheet is a multi-layer sheet using a polyethylene-based resin as a base resin, a core layer has a density of 0.880 g/cm3 to 0.895 g/cm3 and a melting point of 70° C. or higher, a skin layer has a density of 0.880 g/cm3 to 0.910 g/cm3 and a melting point of 90° C. or lower and contains a silane-modified polyethylene-based resin, a weight average molecular weight of the silane-modified polyethylene-based resin contained in the skin layer 11 in terms of polystyrene is 70000 to 120000, and a polymerized silane amount of the skin layer in the whole resin component is 300 ppm to 2000 ppm.

公开(公告)号：US20240313141A1

公开(公告)日：2024-09-19

申请号：US18653452

申请日：2024-05-02

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kosuke SAEKI ,  Shinya Yoneda ,  Jun Tanaka ,  Hiroaki Tamaki ,  Shinsuke Nagino ,  Naohiro Obonai

IPC: H01L31/048 ,  B32B27/08 ,  B32B27/32 ,  B32B37/15 ,  H01L31/049

CPC classification number: H01L31/0481 ,  B32B27/08 ,  B32B27/32 ,  B32B37/153 ,  H01L31/0488 ,  H01L31/049 ,  B32B2307/72 ,  B32B2457/12

Abstract: To provide a sealing material sheet for a solar-cell module that has high productivity without performing crosslinking processing, and has a high tensile shear adhesion force at normal temperature at a high level in addition to heat resistance and molding characteristics. A sealing material sheet is a multi-layer sheet using a polyethylene-based resin as a base resin, a core layer has a density of 0.880 g/cm3 to 0.895 g/cm3 and a melting point of 70° C. or higher, a skin layer has a density of 0.880 g/cm3 to 0.910 g/cm3 and a melting point of 90° C. or lower and contains a silane-modified polyethylene-based resin, a weight average molecular weight of the silane-modified polyethylene-based resin contained in the skin layer 11 in terms of polystyrene is 70000 to 120000, and a polymerized silane amount of the skin layer in the whole resin component is 300 ppm to 2000 ppm.

公开(公告)号：US11973155B2

公开(公告)日：2024-04-30

申请号：US17866692

申请日：2022-07-18

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kosuke Saeki ,  Shinya Yoneda ,  Jun Tanaka ,  Hiroaki Tamaki ,  Shinsuke Nagino ,  Naohiro Obonai

IPC: H01L31/048 ,  B32B7/022 ,  B32B27/08 ,  B32B27/32 ,  B32B37/02 ,  B32B37/10 ,  H01L31/18

CPC classification number: H01L31/0481 ,  B32B7/022 ,  B32B27/08 ,  B32B27/32 ,  B32B37/02 ,  B32B37/1018 ,  H01L31/186 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2307/30 ,  B32B2307/72 ,  B32B2457/12

Abstract: To provide a sealing material sheet for a solar-cell module that has high productivity, and can also suppress unevenness in thickness at the time of integration as a solar-cell module. There is provided a sealing material sheet 1 in which there are two inflection point temperatures that are temperatures only around which a change rate of the linear expansion coefficient locally increases, a first inflection point temperature at a low temperature side of two inflection point temperatures is within a range of 55° C. to 70° C., and a second inflection point at a high temperature side of the inflection point temperatures is within a range of 80° C. to 95° C.