公开(公告)号：US20220352404A1

公开(公告)日：2022-11-03

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 ,  B32B37/10 ,  H01L31/18 ,  B32B37/02

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.

公开(公告)号：US20200328317A1

公开(公告)日：2020-10-15

申请号：US16381478

申请日：2019-04-11

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kosuke SAEKI ,  Shinya YONEDA ,  Jun TANAKA ,  Hiroaki TAMAKI ,  Shinsuke NAGINO ,  Naohiro OBONAI

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

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 11 has a density of 0.880 g/cm3 to 0.930 g/cm3 and a melting point of 70° C. or higher, a skin layer 12 has a density of 0.880 g/cm3 to 0.900 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 12 in terms of polystyrene is 70000 to 120000, and a polymerized silane amount of the skin layer 12 in the whole resin component is 300 ppm to 2000 ppm.

公开(公告)号：US20180212088A1

公开(公告)日：2018-07-26

申请号：US15737405

申请日：2016-06-09

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Yasushi SHIRAHIGE ,  Hiroaki TAMAKI ,  Shinji HAYASHI

IPC: H01L31/049 ,  H01L31/048 ,  B32B27/08 ,  B32B27/20 ,  B32B27/32

CPC classification number: H01L31/049 ,  B32B27/08 ,  B32B27/18 ,  B32B27/20 ,  B32B27/30 ,  B32B27/32 ,  B32B27/322 ,  B32B27/36 ,  B32B2250/03 ,  B32B2250/04 ,  B32B2250/242 ,  B32B2250/40 ,  B32B2264/102 ,  B32B2264/108 ,  B32B2270/00 ,  B32B2307/30 ,  B32B2307/31 ,  B32B2307/40 ,  B32B2307/4026 ,  B32B2307/412 ,  B32B2307/732 ,  B32B2323/046 ,  B32B2323/10 ,  B32B2367/00 ,  B32B2457/00 ,  B32B2457/12 ,  H01L31/0481 ,  Y02E10/50

Abstract: Provided are: a sealing material sheet for solar cell modules, and a sealing material-integrated rear-surface protecting sheet. A sealing material sheet 1 for solar cell modules, which has a thickness of from 200 μm to 400 μm (inclusive) and comprises a core layer 11 and a skin layer 12, and wherein: the core layer 11 contains from 5% by mass to 40% by mass (inclusive) of a polypropylene and from 60% by mass to 95% by mass (inclusive) of a low-density polyethylene having a density of from 0.910 g/cm3 to 0.940 g/cm3 (inclusive) in terms of content ratios to all the resin components; and the skin layer 12 contains from 80% by mass to 100% by mass (inclusive) of a low-density polyethylene having a density of 0.880 g/cm3 or more but less than 0.910 g/cm3 in terms of a content ratio to all the resin components, without containing a polypropylene.

公开(公告)号：US20230099082A1

公开(公告)日：2023-03-30

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

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：US20200328316A1

公开(公告)日：2020-10-15

申请号：US16381199

申请日：2019-04-11

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 ,  B32B37/10 ,  B32B37/02 ,  H01L31/18

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.