ADHESIVE RESIN COMPOSITION, FILM FOR FLUORINE RESIN ADHESION, LAMINATE, AND METHOD FOR PRODUCING LAMINATE

• US 20190322908A1
• Filed: 11/30/2017
• Published: 10/24/2019
• Est. Priority Date: 12/12/2016
• Status: Active Grant

• Current Assignee: Fujimori Kogyo Company Limited
• Original Assignee: Fujimori Kogyo Company Limited
• Inventors: KASHIMA, Kousuke, MATSUYAMA, Takeo, SUZUKI, Toyoaki, FURUKAWA, Hidekazu
• Granted Patent: US 11,261,354 B2
• Time in Patent Office: Days
• CPC Class Codes: B32B 27/00 Layered products comprising a layer of synthetic resin fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/30 comprising vinyl (co)polymers; comprising acrylic (co)polymers
• CPC Class Codes: B32B 27/32 comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: B32B 27/322 comprising halogenated polyolefins, e.g. PTFE
• CPC Class Codes: B32B 27/327 comprising polyolefins obtained by a metallocene or single-site catalyst
• CPC Class Codes: B32B 37/12 characterised by using adhesives
• CPC Class Codes: B32B 37/153 at least one layer is extruded and immediately laminated while in semi-molten state
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: C08L 2203/16 used for films
• CPC Class Codes: C08L 23/30 by oxidation
• CPC Class Codes: C08L 53/025 modified
• CPC Class Codes: C09J 11/08 Macromolecular additives
• CPC Class Codes: C09J 121/00 Adhesives based on unspecified rubbers
• CPC Class Codes: C09J 123/04 Homopolymers or copolymers of ethene
• CPC Class Codes: C09J 123/06 Polyethene
• CPC Class Codes: C09J 2409/00 Presence of diene rubber
• CPC Class Codes: C09J 2423/04 Presence of homo or copolymers of ethene
• CPC Class Codes: C09J 2427/006 in the substrate
• CPC Class Codes: C09J 5/00 Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
• CPC Class Codes: C09J 7/00 : Adhesives in the form of films or foils

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.

Claims

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, and

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.

2. The adhesive resin composition according to claim 1, wherein 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.

3. The adhesive resin composition according to claim 1, wherein 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.

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

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

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

7. A method for manufacturing the laminate according to claim 6, 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 a 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 a laminate;

(2) a method for manufacturing the laminate, the method comprising steps of;

melt-extruding a 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 a 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.