RESIN COMPOSITION FOR GAS BARRIER ADHESIVE, AND ADHESIVE

It is an object of the present invention to provide a resin composition for an adhesive having high gas barrier properties and laminate strength. 1. A resin composition for a gas barrier adhesive , the resin composition comprising a resin (A) having two or more hydroxy groups per molecule and a polyisocyanate (B) having two or more isocyanate groups ,wherein the polyisocyanate (B) is a mixture of a tri- or higher-valent polyisocyanate compound (b1) having an aromatic ring in its molecule and a polyisocyanate compound (b2) having no aromatic ring in its molecule.2. The resin composition for a gas barrier adhesive according to claim 1 , wherein the polyisocyanate compound (b2) is a diisocyanate compound.3. The resin composition for a gas barrier adhesive according to claim 1 , wherein the resin (A) has a main skeletal structure composed of a polyester claim 1 , a polyester polyurethane claim 1 , a polyether claim 1 , or a polyether polyurethane.4. The resin composition for a gas barrier adhesive according to claim 1 , wherein the resin (A) has an aromatic ring.5. The resin composition for a gas barrier adhesive according to claim 4 , wherein the resin (A) has a main skeletal structure composed of a polyester or a polyester polyurethane claim 4 , andan ortho-oriented aromatic dicarboxylic acid or its anhydride accounts for 70 to 100% by mass of the total amount of a polyvalent carboxylic acid component serving as a monomer component constituting the polyester.6. The resin composition for a gas barrier adhesive according to claim 5 , wherein the ortho-oriented aromatic dicarboxylic acid or its anhydride is at least one selected from the group consisting of ortho-phthalic acid and its anhydride claim 5 , naphthalene-2 claim 5 ,3-dicarboxylic acid and its anhydride claim 5 , naphthalene-1 claim 5 ,2-dicarboxylic acid and its anhydride claim 5 , anthraquinone-2 claim 5 ,3-dicarboxylic acid and its anhydride claim 5 , and 2 claim 5 ,3-anthracene dicarboxylic acid and its ...

LAMINATE HAVING SEALANT FILM

A problem of the present invention is to provide a laminate which can be used as a packaging material mainly for food and the like and which uses a sealant layer having a specific adhesive layer having the oxygen- or gas-barrier properties in order to exhibit the excellent oxygen- or gas-barrier properties. The problem is solved by providing a laminate (A2) including a laminate (A1) used as a sealant film and having a layer configuration of base film/adhesive/laminate (A1), wherein the laminate (A1) has a layer configuration of film/oxygen or water-vapor barrier adhesive (B)/sealant film. 1. A laminate (A2) comprising a laminate (A1) used as a sealant film and having a layer configuration of base film adhesive/laminate (A1) ,wherein the laminate (A1) has a layer configuration of film/oxygen or water-vapor barrier adhesive (B)/seaIant film.2. The laminate (A2) according to claim 1 , wherein the oxygen or water-vapor barrier adhesive (B) includes a resin containing a resin (b1) having two or more hydroxyl groups as functional groups in one molecule and an isocyanate compound (b2) having two or more isocyanate groups as functional groups in one molecule.3. The laminate (A2) according to claim 1 , wherein the main skeleton of the resin (b1) has a polyester polyol claim 1 , polyester polyurethane polyol claim 1 , polyether polyol claim 1 , or polyether polyurethane polyol structure.4. The laminate (A2) according to claim 3 , wherein the main skeleton of the resin (b1) has a polyester polyol or polyester polyurethane polyol structure claim 3 , and a ratio of use of an ortho-oriented aromatic dicarboxylic acid or anhydride thereof is 70% to 100% by mass relative to all polyvalent carboxylic acid components of a polyester-constituting monomer component.5. The laminate (A2) according to claim 4 , wherein the ortho-oriented aromatic dicarboxylic acid or anhydride thereof is at least one selected from the group consisting of orthophthalic acid or anhydride thereof claim 4 , ...

RESIN COMPOSITION FOR ADHESIVE CONTAINING PLATE-LIKE INORGANIC COMPOUND, AND ADHESIVE

An object of the present invention is to provide a resin composition for adhesives, the resin composition mainly containing a resin that has a good adhesive strength or a good oxygen-barrier property, and an adhesive obtained by applying the resin composition onto a film. The object is achieved by providing a resin composition for adhesives, the resin composition containing (A) a resin that has, as functional groups, two or more hydroxyl groups per molecule, (B) an isocyanate compound that has, as functional groups, two or more isocyanate groups per molecule, and (C1) a plate-like inorganic compound or (C2) a light-blocking agent that can block light having a wavelength of 350 nm or less, and an adhesive obtained by curing the resin composition for adhesives. 1. A resin composition for adhesives , the resin composition comprising (A) a resin that has , as functional groups , two or more hydroxyl groups per molecule , (B) an isocyanate compound that has , as functional groups , two or more isocyanate groups per molecule , and (C1) a plate-like inorganic compound or (C2) a light-blocking agent that can block light having a wavelength of 350 nm or less.2. The resin composition for adhesives according to claim 1 , wherein a main skeleton of the resin (A) has a polyester claim 1 , polyester polyurethane claim 1 , polyether claim 1 , or polyether polyurethane structure.3. The resin composition for adhesives according to claim 1 , wherein the resin (A) has an aromatic ring.4. The resin composition for adhesives according to claim 3 ,wherein a main skeleton of the resin (A) has a polyester or polyester polyurethane structure, anda ratio of an ortho-oriented aromatic dicarboxylic acid or an anhydride thereof to all polyvalent carboxylic acid components used as monomer components constituting a polyester is 70% to 100% by mass.5. The resin composition for adhesives according to claim 4 , wherein the ortho-oriented aromatic dicarboxylic acid or the anhydride thereof is at ...

LAMINATE AND METHOD FOR MANUFACTURING LAMINATE

Provided are a laminate including: a first base material; a second base material; a printing layer provided on a surface of the first base material on a side of the second base material; and an adhesive layer which is disposed between the printing layer and the second base material and bonds the first base material and the second base material to each other, in which the printing layer is formed of a printing ink composition (A) including a urethane resin (A1) and a vinyl chloride vinyl acetate copolymer resin (A2), and the adhesive layer is formed by applying a two-component polyurethane-based adhesive (B) including a polyol (B1) having a number average molecular weight equal to or smaller than 2,300 and an isocyanate compound (B2), and a method for manufacturing a laminate. 1. A laminate comprising:a first base material;a second base material;a printing layer provided on a surface of the first base material on a side of the second base material; andan adhesive layer which is disposed between the printing layer and the second base material and bonds the first base material and the second base material to each other,wherein the printing layer is formed of a printing ink composition (A) comprising a urethane resin (A1) and a vinyl chloride vinyl acetate copolymer resin (A2), andthe adhesive layer is formed by applying a two-component polyurethane-based adhesive (B) comprising a polyol (B1) having a number average molecular weight equal to or smaller than 2,300 and an isocyanate compound (B2).2. The laminate according to claim 1 ,wherein the polyol (B1) has a permachor value of 44 to 60 with respect to residues excluding terminal hydroxyl groups.3. The laminate according to claim 1 ,wherein the polyol (B1) is amorphous.4. The laminate according to claim 1 ,wherein a main skeleton of the polyol (B1) has a polyester, polyester polyurethane, polyether, or polyether polyurethane structure.5. The laminate according to claim 1 ,wherein the polyol (B1) has an ortho-oriented ...

Production process of multi layer and the multi layer produced by such process

resin composition for inert gas barrier adhesives, adhesive and multilayer film

Resin composition for adhesives containing plate-like inorganic compound, and adhesive