In an aqueous dispersion containing a resin component and water that allows the resin component to disperse, the resin component contains composite particles (C) containing an ethylene-unsaturated carboxylic acid copolymer (A) and an acrylic polymer (B), the ethylene-unsaturated carboxylic acid copolymer (A) is produced by copolymerizing a first monomer component containing ethylene and unsaturated carboxylic acid and having an ethylene content of 75 mass % or more, the acrylic polymer (B) is produced by polymerizing a second monomer component containing (meth)acrylate and having a (meth)acrylate content of 50 mass % or more, the acrylic polymer (B) has a glass transition temperature of 28 C. or more and 80 C. or less, and the ethylene-unsaturated carboxylic acid copolymer (A) content relative to the total amount of the resin component is 58 mass % or more and 90 mass % or less.

A base polymer for hot-melt adhesive, containing a propylenic polymer (A) having a tensile modulus of elasticity of 60 MPa or more, and an olefinic polymer (B) having a tensile modulus of elasticity of less than 60 MPa, wherein, relative to 100 parts by mass of the total amount of the propylenic polymer (A) and the olefinic polymer (B), the content of the propylenic polymer (A) is 1 part by mass or more and less than 50 parts by mass, and the content of the olefinic polymer (B) is more than 50 parts by mass and 99 parts by mass or less; and a hot-melt adhesive containing the base polymer, and further containing at least one of (C) a tackifier resin and (D) an oil.

Cardboard with edges sealed by a mixture of hot-melt adhesive and wax includes two surface sheets and an intermediate core material. The surface sheets have a pair of corresponding edges that form an edge opening therebetween communicating with the interstitial spaces in the cardboard and sealed by an edge-sealing structure in the interstitial spaces. The edge-sealing structure includes a primer layer formed by an adhesive mixture and a sealing layer formed by a sealing mixture. The adhesive mixture is made by mixing the hot-melt adhesive with the wax, adhesively bonds the surface sheets and the intermediate core material together, and forms the primer layer with voids and providing a porous supporting surface to be coated with the sealing mixture. The sealing mixture is less adhesive than the adhesive mixture and fills up the voids in the primer layer. Thus, the cardboard achieves waterproofness and thermal and acoustic insulation at low cost.

Provided are a hot-melt adhesive having high flowability in a molten state and exhibiting high adhesion strength in bonding PP nonwoven fabrics and further exhibiting high adhesion strength in bonding PE film-PP nonwoven fabric, and a base polymer for a hot-melt adhesive. The hot-melt adhesive contains (A) a propylene-based polymer satisfying the following (Ai) to (Aiv), and (B) an olefin-based copolymer satisfying the following (Bi) and (Bii); and the base polymer for a hot-melt adhesive consists of a mixture of (A) a propylene-based polymer satisfying the following (Ai) to (Aiv) and (B) an olefin-based copolymer satisfying the following (Bi) and (Bii) and satisfies the following (1) and (2). (Ai) the melting point is 120 C. or lower, (Aii) the Mw is 10,000 to 150,000, (Aiii) the Mw/Mn is 2.5 or less, (Aiv) the penetration is 8 or less, (Bi) the penetration is 15 or more, (Bii) the melting point is 90 C. or higher, (1) the tensile elastic modulus at 23 C. is 400 MPa or less, and (2) the semi-crystallization time at 23 C. is 20 minutes or less.

The present invention provides an aqueous dispersion mixture comprising; an aqueous dispersion (A) that comprises a crystalline polyolefin (a) as a dispersoid thereof; an aqueous dispersion (B) that comprises a crystalline polyurethane (b) as a dispersoid thereof; and an aqueous dispersion (C) that comprises a non-crystalline polyurethane (c) as a dispersoid thereof, wherein the crystalline polyolefin (a) is a non-chlorine modified polyolefin, wherein the crystalline polyurethane (b) has a crystal melting heat amount equal to or larger than 3 J/g measured by differential scanning calorimetry, wherein the non-crystalline polyurethane (c) has a crystal melting heat amount smaller than 3 J/g measured by differential scanning calorimetry, and wherein the aqueous dispersion (B) comprises a non-volatile content of 30 parts by mass to 100 parts by mass and the aqueous dispersion (C) comprises a non-volatile content of 20 parts by mass to 80 parts by mass, relative to a non-volatile content of 100 parts by mass of the aqueous dispersion (A).

Provided are an adhesive composition and an organic electronic device (OED) including the same, and particularly, an adhesive composition, which may form a structure effectively blocking moisture or oxygen flowing into an OED from the outside, realize a top-emission OED and exhibit excellent handleability and processability, and an OED including the same.

Provided are an adhesive composition and an organic electronic device (OED) including the same, and particularly, an adhesive composition, which may form an encapsulation structure effectively blocking moisture or oxygen flowing into an OED from the outside, thereby ensuring the lifespan of the OED, realize a top-emission OED, and exhibit excellent adhesive durability and reliability, and an OED including the same.

Provided are an adhesive composition and an organic electronic device (OED) including the same, and particularly, an adhesive composition, which may form an encapsulation structure effectively blocking moisture or oxygen flowing into an OED from the outside, thereby ensuring the lifespan of the OED, realize a top-emission OED, and exhibit excellent adhesive durability and reliability, and an OED including the same.

Provided are a hot-melt adhesive having high flowability in a molten state and exhibiting high adhesion strength in bonding PP nonwoven fabrics and further exhibiting high adhesion strength in bonding PE film-PP nonwoven fabric, and a base polymer for a hot-melt adhesive. The hot-melt adhesive contains (A) a propylene-based polymer satisfying the following (Ai) to (Aiv), and (B) an olefin-based copolymer satisfying the following (Bi) and (Bii); and the base polymer for a hot-melt adhesive consists of a mixture of (A) a propylene-based polymer satisfying the following (Ai) to (Aiv) and (B) an olefin-based copolymer satisfying the following (Bi) and (Bii) and satisfies the following (1) and (2). (Ai) the melting point is 120 C. or lower, (Aii) the Mw is 10,000 to 150,000, (Aiii) the Mw/Mn is 2.5 or less, (Aiv) the penetration is 8 or less, (Bi) the penetration is 15 or more, (Bii) the melting point is 90 C. or higher, (1) the tensile elastic modulus at 23 C. is 400 MPa or less, and (2) the semi-crystallization time at 23 C. is 20 minutes or less.

Hot melt adhesive with renewable raw materials are described. The hot melt adhesives comprise (a) a polyester-based resin; (b) a functionalized polyolefin or a functionalized wax; and (c) a tackifier. The hot melt adhesive has similar performance properties of traditional hot melt adhesives formed from petroleum-based raw materials.