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