Adhesive resin composition, film for fluorine resin adhesion, laminate, and method for producing laminate

Patent metadata

Field	Value
Publication number	US-11261354-B2
Application number	US-201716467498-A
Country	US
Kind code	B2
Filing date	Nov 30, 2017
Priority date	Dec 12, 2016
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

The present invention provides an adhesive resin composition that is used for adhesion of a fluorine-based resin and is aimed at adhesion between fluorine-based resins or between a fluorine-based resin and a material other than a fluorine-based resin. More specifically, the present invention relates to an adhesive resin composition for use in adhesion of a fluorine-based resin, the composition including a polyethylene-based resin, an elastomer component, and a component having an epoxy group and a vinyl group, wherein a content of the polyethylene-based resin is 55 parts by mass or more and 90 parts by mass or less, a content of the elastomer component is 10 parts by mass or more and 45 parts by mass or less, the elastomer component and the component having an epoxy group and a vinyl group have a common repetition unit, and a content of the component having an epoxy group and a vinyl group based on a total amount of 100 parts by mass of the polyethylene-based resin and the elastomer component is 0.1 parts by mass or more and 1.5 parts by mass or less.

First claim

What is claimed is:

1. An adhesive resin composition for use in adhesion of a fluorine-based resin, the composition comprising a polyethylene-based resin, an elastomer component, and a component having an epoxy group and a vinyl group, wherein
a content of said polyethylene-based resin is 55 parts by mass or more and 90 parts by mass or less,
a content of said elastomer component is 10 parts by mass or more and 45 parts by mass or less,
a content of said component having an epoxy group and a vinyl group based on a total amount of 100 parts by mass of said polyethylene-based resin and said elastomer component is 0.1 parts by mass or more and 1.5 parts by mass or less,
said elastomer component is a styrene-ethylene-butylene-styrene copolymer having a styrene content of 8% by mass or more and 24% by mass or less, and
said component having an epoxy group and a vinyl group is a component having an epoxy group partially introduced into 1,2-polybutadiene, and has a number average molecular weight of 500 or more and 4,000 or less.

2. The adhesive resin composition according to claim 1 , wherein said polyethylene-based resin is a polyethylene polymerized with a metallocene-based catalyst.

3. A film for fluorine-based resin adhesion having a single layer configuration, wherein said film is formed from the adhesive resin composition according to claim 1 .

4. A laminate having a layer formed from the adhesive resin composition according to claim 1 .

5. A method for manufacturing the laminate according to claim 4 , the method being any one of methods (1) to (3) below:
(1) a method for manufacturing the laminate, the method comprising steps of:
melt-extruding the layer formed from said adhesive resin composition to obtain a film for fluorine-based resin adhesion having a single layer configuration; and
laminating a film on both sides of said film for fluorine-based resin adhesion, followed by thermo-compression bonding to obtain the laminate;

(2) a method for manufacturing the laminate, the method comprising steps of:
melt-extruding the layer formed from said adhesive resin composition on a film serving as a first substrate to obtain a laminate of first substrate/adhesive agent layer; and
further laminating a second substrate so as to have first substrate/adhesive agent layer/second substrate, followed by thermo-compression bonding to obtain the laminate; and

(3) a method for manufacturing the laminate, the method comprising a step of simultaneously melt extrusion-molding a resin serving as a raw material of a first substrate, said adhesive resin composition, and a resin serving as a raw material of a second substrate.

Assignees

• Fujimori Kogyo Co Ltd

Inventors

• Kashima kousuke
• Matsuyama Takeo
• Suzuki Toyoaki
• Furukawa Hidekazu

Classifications

• C09J2427/006

  in the substrate · CPC title

• C09J7/00

  Adhesives in the form of films or foils · CPC title

• B32B37/1207

  Heat-activated adhesive (B32B37/04 takes precedence) · CPC title

• B32B37/153

  at least one layer is extruded and immediately laminated while in semi-molten state · CPC title

• C09J123/06 Primary

  Polyethylene · CPC title