C09J7/30

CROSSLINKING ADHESIVE COMPOSITION AND ADHESIVE TAPE
20230159793 · 2023-05-25 · ·

A crosslinking adhesive composition containing an acrylic copolymer with 3 parts by mass or more and less than 25 parts by mass of component (A1), having two or more hydroxyl group-containing (meth)acrylate monomers, each of which has a defined molecular structure; 5 parts by mass or more and less than 25 parts by mass of component (A2) having a carboxylic acid group-containing (meth)acrylate monomer; 5 parts by mass or more and less than 30 parts by mass of component (A3) having a (meth)acrylic acid alkyl ester monomer with a defined molecular structure; and 50 parts by mass or more and less than 90 parts by mass of component (A4) having a (meth)acrylic acid alkyl ester monomer having a defined molecular structure, with respect to 100 parts by mass consisting of the sum of components (A1) to (A4).

HIGH-FREQUENCY DIELECTRIC HEATING ADHESIVE SHEET
20230159795 · 2023-05-25 ·

A high-frequency dielectric heating adhesive sheet includes: a first adhesive layer; a second adhesive layer; and an intermediate layer located between the first adhesive layer and the second adhesive layer, the first adhesive layer containing a first thermoplastic resin and a first dielectric filler configured to generate heat in response to a high-frequency wave, the second adhesive layer containing a second thermoplastic resin and a second dielectric filler configured to generate heat in response to the high-frequency wave, the intermediate layer containing no dielectric filler in response to the high-frequency wave.

BLOCK-COPOLYMER PELLETS, TACKY ADHESIVE COMPOSITION, AND STRETCH FILM
20230111050 · 2023-04-13 · ·

A block-copolymer pellet having 100 parts by weight of a pellet-shaped article of a block copolymer (A) and 0.01 to 5 parts by weight of a hydrocarbon-based dusting agent (B) is provided, wherein the block copolymer (A) has at least one aromatic vinyl polymer block and at least one conjugated diene polymer block, the hydrocarbon-based dusting agent (B) has a BET specific surface area of 0.50 to 3.00 m.sup.2/g, a volume average particle size of 2.0 to 20 μm, a bulk density of 0.10 to 0.34 g/cm.sup.3, and a melting point of 75° C. or higher, and the block-copolymer pellet has a Shore A hardness of 10 to 80, and a BET specific surface area of 0.001 to 0.05 m.sup.2/g measured by a Kr adsorption method.

BLOCK-COPOLYMER PELLETS, TACKY ADHESIVE COMPOSITION, AND STRETCH FILM
20230111050 · 2023-04-13 · ·

A block-copolymer pellet having 100 parts by weight of a pellet-shaped article of a block copolymer (A) and 0.01 to 5 parts by weight of a hydrocarbon-based dusting agent (B) is provided, wherein the block copolymer (A) has at least one aromatic vinyl polymer block and at least one conjugated diene polymer block, the hydrocarbon-based dusting agent (B) has a BET specific surface area of 0.50 to 3.00 m.sup.2/g, a volume average particle size of 2.0 to 20 μm, a bulk density of 0.10 to 0.34 g/cm.sup.3, and a melting point of 75° C. or higher, and the block-copolymer pellet has a Shore A hardness of 10 to 80, and a BET specific surface area of 0.001 to 0.05 m.sup.2/g measured by a Kr adsorption method.

DIELECTRIC SUBSTRATE AND METHOD OF FORMING THE SAME

The present disclosure relates to a dielectric substrate that may include a polymer based core film, and a fluoropolymer based adhesive layer. The polymer based core film may include a resin matrix component, and a ceramic filler component. The ceramic filler component may include a first filler material. The particle size distribution of the first filler material may have a D.sub.10 of at least about 1.0 microns and not greater than about 1.7, a D.sub.50 of at least about 1.0 microns and not greater than about 3.5 microns, and a D.sub.90 of at least about 2.7 microns and not greater than about 6 microns.

Composition containing a silicone-based adhesive and cellulose nanocrystals, and methods and articles

The present disclosure provides an adhesive composition including a silicone-based adhesive and cellulose nanocrystals dispersed in the silicone-based adhesive. The present disclosure also provides an article including a substrate and a layer of the adhesive composition adhered to the substrate. Further, the present disclosure provides a method of making an adhesive composition. The method comprises mixing cellulose nanocrystals in a silicone-based adhesive to disperse the cellulose nanocrystals. The present disclosure additionally provides a method of making an article including disposing a layer of the adhesive composition on a substrate. The presence of the cellulose nanocrystals advantageously increases the water uptake capacity of the silicone-based adhesive while maintaining acceptable adhesive performance.

Composition containing a silicone-based adhesive and cellulose nanocrystals, and methods and articles

The present disclosure provides an adhesive composition including a silicone-based adhesive and cellulose nanocrystals dispersed in the silicone-based adhesive. The present disclosure also provides an article including a substrate and a layer of the adhesive composition adhered to the substrate. Further, the present disclosure provides a method of making an adhesive composition. The method comprises mixing cellulose nanocrystals in a silicone-based adhesive to disperse the cellulose nanocrystals. The present disclosure additionally provides a method of making an article including disposing a layer of the adhesive composition on a substrate. The presence of the cellulose nanocrystals advantageously increases the water uptake capacity of the silicone-based adhesive while maintaining acceptable adhesive performance.

Adhesive composition

The present invention provides an adhesive composition that exhibits excellent adhesive force, and can be easily separated by photocuring during a peeling step, in which foaming and lifting are not generated even after a high temperature process.

Adhesive mountable stack of removable layers
11622592 · 2023-04-11 · ·

An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.

Adhesive mountable stack of removable layers
11622592 · 2023-04-11 · ·

An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.