公开(公告)号：US20170266934A1

公开(公告)日：2017-09-21

申请号：US15504943

申请日：2015-08-21

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 ,  B29C47/06 ,  C09J7/02 ,  B29C55/12 ,  B29C71/04 ,  B65D65/40 ,  B29C47/00 ,  B29C55/00

CPC分类号： B32B27/32 ,  B29C48/0018 ,  B29C48/022 ,  B29C48/21 ,  B29C55/005 ,  B29C55/12 ,  B29C71/04 ,  B29K2023/10 ,  B29L2009/00 ,  B29L2031/7129 ,  B32B27/00 ,  B32B2307/518 ,  B32B2439/06 ,  B65D65/40 ,  C08F210/02 ,  C09J7/29 ,  C09J2201/61 ,  C09J2205/114 ,  C09J2409/00 ,  C09J2423/04 ,  C09J2423/10

摘要： A laminate film (30) of the present invention includes a heat sealing layer (10) composed of a resin composition including, with respect to 20 to 95 parts by weight of a propylene-based polymer (A) having a melting point (Tm) of equal to or higher than 120° C. and equal to or lower than 170° C. as measured by differential scanning calorimetry (DSC), a total of 5 to 80 parts by weight of two or more kinds of copolymers selected from the group consisting of a propylene.1-butene copolymer (B) containing a unit derived from propylene in an amount of 51 to 95 mol % and a unit derived from 1-butene in an amount of 5 to 49 mol %, wherein the total of the unit derived from propylene and the unit derived from 1-butene is 100 mol %, a copolymer (C) of ethylene and an α-olefin having 3 to 20 carbon atoms, and a copolymer (D) of 1-butene and an α-olefin having 3 carbon atoms or 5 to 20 carbon atoms containing a constitutional unit derived from 1-butene in an amount of 50 to 99 mol % and a constitutional unit derived from an α-olefin having 3 carbon atoms or 5 to 20 carbon atoms in an amount of 1 to 50 mol %, wherein the total of the unit derived from 1-butene and the unit derived from the α-olefin is 100 mol %, wherein each of Component (B), Component (C), and Component (D) does not correspond to Component (A), and the total amount of Component (A), Component (B), Component (C), and Component (D) is 100 parts by weight, and a base layer (20), in which a surface of the heat sealing layer (10) opposite to the base layer (20) has a wet tension of 32 to 45 mN/m.

公开(公告)号：US20170037161A1

公开(公告)日：2017-02-09

申请号：US15296655

申请日：2016-10-18

申请人： MITSUI CHEMICALS, INC.

发明人： Ikuo AKAI ,  Tomohiro ABE ,  Koya YOSHIMOTO ,  Masayoshi YAMAGUCHI ,  Shinya TANAKA ,  Koji MATSUNAGA ,  Makoto EGAWA

IPC分类号： C08F210/08

CPC分类号： C08F210/08 ,  C08F4/65912 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/142 ,  C08L23/18 ,  C08L23/20 ,  C08L23/22 ,  C08L2203/162 ,  C09J123/06 ,  C09J123/0815 ,  C09J123/142 ,  C08F4/65927 ,  C08F210/16 ,  C08F2500/17 ,  C08F2500/12 ,  C08F2500/15 ,  C08F2500/03 ,  C08F210/06

摘要： An object of the invention is to provide compositions which have low-temperature heat sealing properties, are free from stickiness, may achieve a heat seal strength controlled within a certain definite range when heat sealing takes place at low temperatures, have small changes in heat seal strength with time, and are such that in the packaging applications, the strength required to open the packages may be easily controlled within a certain definite range, and high-performance packages may be designed. The invention resides in a 1-butene.α-olefin copolymer composition including 99 to 1 parts by mass of at least one olefin polymer (X) selected from propylene polymers (X-1) and ethylene polymers (X-2), and 1 to 99 parts by mass of a 1-butene.α-olefin copolymer (Y) containing 0.1 to 30 mol % of one or more α-olefins selected from α-olefins and having a molecular weight distribution (Mw/Mn) of 1.0 to 3.5 [wherein the total of (X) and (Y) in the composition is 100 parts by mass].

摘要翻译： 本发明的目的是提供具有低温热封性能，无粘性的组合物，当在低温下进行热封时，可实现在一定范围内控制的热封强度，热密封变化小 随着时间的推移，并且在包装应用中，打开包装所需的强度可以容易地控制在一定范围内，并且可以设计高性能包装。 本发明涉及含有99〜1质量份的选自丙烯聚合物（X-1）和乙烯聚合物（X-2）中的至少一种烯烃聚合物（X）和1-乙烯聚合物（X-2）的1-丁烯-α-烯烃共聚物组合物， 至99质量份含有0.1至30mol％的选自α-烯烃中的一种或多种α-烯烃并且分子量分布（Mw / Mn）为1.0至1.0的1-丁烯-α-烯烃共聚物（Y） 3.5 [组合物中（X）和（Y）的总和为100质量份]。

公开(公告)号：US20170217144A1

公开(公告)日：2017-08-03

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 ,  B32B27/06

CPC分类号： B32B27/32 ,  B32B27/00 ,  B32B27/06 ,  B32B2307/31 ,  B32B2439/00 ,  B65D65/40 ,  C08L23/10 ,  C08L23/14 ,  C08L23/20 ,  C08L2203/162 ,  C08L2205/02

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.