公开(公告)号：US12180347B2

公开(公告)日：2024-12-31

申请号：US17785564

申请日：2021-11-16

Applicant: UNITIKA LTD.

Inventor： Takashi Okabe ,  Nobuyasu Okumura ,  Kumi Ashihara

IPC: C08J7/04 ,  B29C48/00 ,  B29C48/08 ,  B29K77/00 ,  B29K105/00 ,  C08K7/26

Abstract: A laminated film having a resin layer laminated on at least one surface of a base film. The laminated film is characterized by: the base film being a semi-aromatic polyamide film that has been at least uniaxially stretched; the resin layer containing fine particles; the thermal shrinkage factor in the longitudinal direction SMD and the thermal shrinkage factor in the width direction STD of the film measured under conditions of 250° C.×5 minutes each being −1.0 to 1.5%; the tensile elongations at break in the longitudinal direction and in the width direction each being 70% or more; and the haze being 3% or less.

公开(公告)号：US20190224945A1

公开(公告)日：2019-07-25

申请号：US16333711

申请日：2017-09-20

Applicant: UNITIKA LTD.

Inventor： Mari Shimizu ,  Kouhei Tanaka ,  Nobuyasu Okumura

IPC: B32B7/06 ,  B29C55/02 ,  B29C55/14 ,  B32B27/30 ,  B32B27/36

Abstract: There is provided a release film comprising a substrate film and a resin layer provided on at least one surface of a substrate film, wherein the resin layer comprises 100 parts by mass of an acid-modified polyolefin resin, 1 to 20 parts by mass of a crosslinking agent and 10 to 1,000 parts by mass of a polyvinyl alcohol having a saponification rate of 99% or lower.

公开(公告)号：US10072143B2

公开(公告)日：2018-09-11

申请号：US15032366

申请日：2014-12-03

Applicant: UNITIKA LTD.

Inventor： Haruki Ohfuji ,  Nobuyasu Okumura ,  Takuma Yano ,  Kenjin Shiba

IPC: C08L23/26 ,  C08L75/04 ,  C08J3/05 ,  C09D5/02 ,  C09D123/26 ,  C09J123/16 ,  C09J123/26

CPC classification number: C08L23/26 ,  C08J3/05 ,  C08J2323/16 ,  C08L75/04 ,  C08L2201/50 ,  C09D5/022 ,  C09D123/26 ,  C09J123/26

Abstract: Disclosed is an aqueous polyolefin resin dispersion including a polyolefin resin and an aqueous medium, wherein the polyolefin resin includes an olefin component and an unsaturated carboxylic acid component as copolymer components; the olefin component includes propylene (A) and an olefin(s) (B) other than propylene; the mass ratio (A/B) between the propylene (A) and the olefin(s) (B) other than propylene is 60/40 to 95/5; the content of the unsaturated carboxylic acid component as the copolymer component is 1 part by mass or more in relation to 100 parts by mass of the total mass of (A) and (B); and the content of the unsaturated carboxylic acid monomer in the dry residue of the aqueous dispersion is 10,000 ppm or less.

公开(公告)号：US20220056229A1

公开(公告)日：2022-02-24

申请号：US17428781

申请日：2020-02-19

Applicant: UNITIKA LTD.

Inventor： Takashi Okabe ,  Nobuyasu Okumura ,  Masafumi Yamamoto ,  Kumi Ashihara ,  Midori Shimomura ,  Yoshimi Ueno

IPC: C08J7/04 ,  C08J5/18 ,  C08L77/06 ,  G02B1/14

Abstract: A laminated film having a resin layer laminated on at least one surface of a base film. The laminated film is characterized by: the base film being a semi-aromatic polyamide film that has been at least uniaxially stretched; the resin layer having a thickness of 0.03 to 0.5 μm; and the close adhesion between the base film and the resin layer, according to the cross-cut method described in JIS K 5600, being 95% or more.

公开(公告)号：US11040515B2

公开(公告)日：2021-06-22

申请号：US16333711

申请日：2017-09-20

Applicant: UNITIKA LTD.

Inventor： Mari Shimizu ,  Kouhei Tanaka ,  Nobuyasu Okumura

IPC: B32B7/06 ,  B29C55/02 ,  B29C55/14 ,  B29C55/12 ,  B32B27/30 ,  B32B27/36 ,  B32B27/00 ,  B32B27/26 ,  C08J5/18 ,  B29K29/00 ,  B29K67/00 ,  B29K33/00

Abstract: There is provided a release film comprising a substrate film and a resin layer provided on at least one surface of a substrate film, wherein the resin layer comprises 100 parts by mass of an acid-modified polyolefin resin, 1 to 20 parts by mass of a crosslinking agent and 10 to 1,000 parts by mass of a polyvinyl alcohol having a saponification rate of 99% or lower.

公开(公告)号：US09849653B2

公开(公告)日：2017-12-26

申请号：US14652311

申请日：2014-01-09

Applicant: UNITIKA LTD.

Inventor： Goro Araki ,  Nobuyasu Okumura ,  Yoshimi Ueno

IPC: B32B27/36 ,  B32B27/08 ,  B32B27/32 ,  B32B7/06 ,  B32B7/12 ,  B32B27/30 ,  B05D1/28 ,  B05D3/02 ,  B05D3/12 ,  C08J7/04

CPC classification number: B32B27/08 ,  B05D1/28 ,  B05D3/0272 ,  B05D3/12 ,  B32B7/06 ,  B32B7/12 ,  B32B27/306 ,  B32B27/32 ,  B32B27/36 ,  B32B2307/748 ,  B32B2405/00 ,  C08J7/047 ,  C08J2367/02 ,  C08J2423/26 ,  Y10T428/31797

Abstract: The present invention provides a mold release film including a resin layer provided on one surface of a polyester film, wherein the resin layer includes 100 parts by mass of a polypropylene-based modified polyolefin resin with the proportion of a modifying component of 1 to 10% by mass and 1 to 50 parts by mass of a cross-linking agent; the peel strength between the resin layer and a pressure-sensitive adhesive measured by bonding a rubber-based pressure-sensitive adhesive to the resin layer exceeds 3.0 N/cm; and the residual adhesion rate of a pressure-sensitive adhesive after bonding an acrylic pressure-sensitive adhesive to the resin layer is 80% or more.

公开(公告)号：US20160280901A1

公开(公告)日：2016-09-29

申请号：US15032366

申请日：2014-12-03

Applicant: UNITIKA LTD.

Inventor： Haruki Ohfuji ,  Nobuyasu Okumura ,  Takuma Yano ,  Kenjin Shiba

IPC: C08L23/26 ,  C09J123/26 ,  C08L75/04 ,  C09D123/26

CPC classification number: C08L23/26 ,  C08J3/05 ,  C08J2323/16 ,  C08L75/04 ,  C08L2201/50 ,  C09D5/022 ,  C09D123/26 ,  C09J123/26

Abstract: Disclosed is an aqueous polyolefin resin dispersion including a polyolefin resin and an aqueous medium, wherein the polyolefin resin includes an olefin component and an unsaturated carboxylic acid component as copolymer components; the olefin component includes propylene (A) and an olefin(s) (B) other than propylene; the mass ratio (A/B) between the propylene (A) and the olefin(s) (B) other than propylene is 60/40 to 95/5; the content of the unsaturated carboxylic acid component as the copolymer component is 1 part by mass or more in relation to 100 parts by mass of the total mass of (A) and (B); and the content of the unsaturated carboxylic acid monomer in the dry residue of the aqueous dispersion is 10,000 ppm or less.

Abstract translation: 公开了一种包含聚烯烃树脂和水性介质的含水聚烯烃树脂分散体，其中聚烯烃树脂包括作为共聚物组分的烯烃组分和不饱和羧酸组分; 烯烃组分包括丙烯（A）和丙烯以外的烯烃（B）; 丙烯（A）和丙烯（B）以外的丙烯的质量比（A / B）为60/40〜95/5， 相对于（A）和（B）的总质量100质量份，作为共聚物成分的不饱和羧酸成分的含量为1质量份以上。 水性分散体的干燥残留物中的不饱和羧酸单体的含量为10000ppm以下。

公开(公告)号：US20150367610A1

公开(公告)日：2015-12-24

申请号：US14652311

申请日：2014-01-09

Applicant: UNITIKA LTD.

Inventor： Goro Araki ,  Nobuyasu Okumura ,  Yoshimi Ueno

IPC: B32B27/08 ,  B05D3/12 ,  B05D1/28 ,  B05D3/02 ,  B32B27/36 ,  B32B27/32

CPC classification number: B32B27/08 ,  B05D1/28 ,  B05D3/0272 ,  B05D3/12 ,  B32B7/06 ,  B32B7/12 ,  B32B27/306 ,  B32B27/32 ,  B32B27/36 ,  B32B2307/748 ,  B32B2405/00 ,  C08J7/047 ,  C08J2367/02 ,  C08J2423/26 ,  Y10T428/31797

Abstract: The present invention provides a mold release film including a resin layer provided on one surface of a polyester film, wherein the resin layer includes 100 parts by mass of a polypropylene-based modified polyolefin resin with the proportion of a modifying component of 1 to 10% by mass and 1 to 50 parts by mass of a cross-linking agent; the peel strength between the resin layer and a pressure-sensitive adhesive measured by bonding a rubber-based pressure-sensitive adhesive to the resin layer exceeds 3.0 N/cm; and the residual adhesion rate of a pressure-sensitive adhesive after bonding an acrylic pressure-sensitive adhesive to the resin layer is 80% or more.

Abstract translation: 本发明提供了一种脱模膜，其包括设置在聚酯膜的一个表面上的树脂层，其中，树脂层包含100质量份的改性成分的比例为1〜10质量％的聚丙烯系改性聚烯烃树脂， 和1〜50质量份的交联剂; 通过将橡胶系粘合剂与树脂层接合而测定的树脂层与压敏粘合剂之间的剥离强度超过3.0N / cm; 并且在将丙烯酸类压敏粘合剂粘合到树脂层上之后的粘合剂的残留附着率为80％以上。