公开(公告)号：US10896988B2

公开(公告)日：2021-01-19

申请号：US16068943

申请日：2017-01-12

申请人： MITSUI CHEMICALS, INC.

发明人： Koya Yoshimoto ,  Kiminori Noda ,  Makoto Egawa ,  Tatsuya Oku

IPC分类号： B32B27/32 ,  H01L31/049 ,  B32B27/36 ,  C08L23/08 ,  B32B27/26 ,  B32B27/22 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  B32B27/16 ,  B32B27/08 ,  B32B27/18 ,  B32B27/34

摘要： A laminated sheet of a two-layer sheet in which an L1 layer including 50 to 99 parts by mass of an ethylene-based polymer (E1) having a density of 0.890 to 970 kg/m3 and 1 to 50 parts by mass of a propylene-based polymer (P1) is in contact with an L2 layer including 50 to 100 parts by mass of a propylene-based polymer (P2) and 0 to 50 parts by mass of an ethylene-based elastomer (E2) having a density of equal to or more than 850 kg/m3 and less than 890 kg/m3, in which the propylene-based polymer (P1) includes a propylene-based elastomer (P1a) including a propylene-derived constitutional unit and an ethylene-derived constitutional unit and/or a constitutional unit derived from an α-olefin having 4 to 20 carbon atoms, and having a melting point (Tm) that is lower than 120° C. or not observable; and a solar cell backsheet formed using the same.

公开(公告)号：US10603883B2

公开(公告)日：2020-03-31

申请号：US15515554

申请日：2015-09-25

申请人： MITSUI CHEMICALS, INC.

发明人： Tatsuya Oku ,  Tomohiro Abe ,  Satoshi Ikeda ,  Kiminori Noda ,  Makoto Egawa

IPC分类号： B32B27/32 ,  B65D65/40 ,  C08L23/14 ,  B32B27/00 ,  C08L23/20 ,  C08L23/10 ,  B32B27/06

摘要： Disclosed is a stretched laminated film 30 having a heat-sealable layer 10 composed of a resin composition which contains 50 to 97 parts by mass of a propylene-based polymer (A) having a melting point (Tm) of not lower than 120° C. but not higher than 170° C. and comprising more than 50% by mol of a structural unit derived from propylene, 3 to 50 parts by mass of a 1-butene-based polymer (B) having a melting point (Tm) of lower than 120° C. and comprising 10 to 90% by mol of a structural unit derived from 1-butene and 10 to 90% by mol of a structural unit derived from an α-olefin having 3 or 5 to 20 carbon atoms, and optionally 3 to 30 parts by mass of an ethylene α-olefin copolymer (C) comprising 50 to 99% by mol of a structural unit derived from ethylene and 1 to 50% by mol of a structural unit derived from an α-olefin having 3 to 20 carbon atoms, wherein the sum of the component (A) and the component (B) is 100 parts by mass; and a base layer 20.