The present disclosure relates to an acrylic pressure sensitive adhesive tape including a moisture barrier layer in a release layer, and to an acrylic pressure sensitive adhesive tape, which can enhance adhesion by the moisture barrier layer preventing reduction of adhesion of an acrylic adhesive layer caused by moisture.

A multi-layer film adhesive for reducing squeeze out in a bonded joint is provided. The multi-layer film adhesive has a first adhesive layer having a first chemical property. The multi-layer film adhesive further has a second adhesive layer having a second chemical property, wherein the second chemical property is different from the first chemical property. The multi-layer film adhesive further has a third adhesive layer having a third chemical property, wherein the third chemical property is different from the first and second chemical properties. The first adhesive layer, the second adhesive layer, and the third adhesive layer form the multi-layer film adhesive.

A pressure-sensitive adhesive of the invention include a (meth)acryl-based polymer obtained by polymerization of a monomer component including 19 to 99.5% by weight of an alkyl (meth)acrylate having a branched alkyl group of 10 to 24 carbon atoms at an ester end. The pressure-sensitive adhesive has a satisfactory level of adhesive performance and can form a pressure-sensitive adhesive layer with a lower dielectric constant.

Provided is a PSA sheet having first and second faces. The first face is an adhesive face formed of one surface of a PSA layer. The first face has a maximum static friction force of 4.0 N/cm.sup.2 or less and an adhesive strength N2 of 8 N/20mm or greater at 23 C. after subjected to 5 minutes of heating at 80 C. after the first face is applied to a stainless steel plate.

Unique designs, devices, systems, materials and fabrication methods are provided including adhesive closure devices that are easily released and are suitable for extended/repeated use in a variety of applications.

A multi-layer film adhesive for reducing squeeze out in a bonded joint is provided. The multi-layer film adhesive has a first adhesive layer having a first chemical property. The multi-layer film adhesive further has a second adhesive layer having a second chemical property, wherein the second chemical property is different from the first chemical property. The multi-layer film adhesive further has a third adhesive layer having a third chemical property, wherein the third chemical property is different from the first and second chemical properties. The first adhesive layer, the second adhesive layer, and the third adhesive layer form the multi-layer film adhesive.

Unique designs, devices, systems, materials and fabrication methods are provided including adhesive closure devices that are easily released and are suitable for extended/repeated use in a variety of applications.

There is provided a multi-layer adhesive for reducing squeeze out. The multi-layer adhesive comprises a first adhesive layer having a first adhesive property and a second adhesive layer having a second adhesive property. The second adhesive property is different from the first adhesive property. The first adhesive layer and the second adhesive layer form a film adhesive. In another embodiment, there is provided a structure comprising a first component and a second component bonded with the multi-layer adhesive.

Unique designs, devices, systems, materials and fabrication methods are provided including adhesive closure devices that are easily released and are suitable for extended/repeated use in a variety of applications.

An optically clear adhesive (OCA) includes a polymeric resin composition. The polymeric resin composition includes 30 to 60 wt % of a thiol monomer, 20 to 60 wt % of at least one of a vinyl monomer or an allyl monomer, and 10 to 30 wt % of a difunctional aliphatic urethane oligomer. The polymeric resin composition further includes 1 to 3 wt % of a hydrolytic stabilizer additive, 1 to 5 wt % of a glycidyl monomer having at least one of an allyl functional group or an acrylate functional group, 0.1 to 1 wt % of a cyclic azasilane monomer, 0.5 to 2 wt % of a photoinitiator, and 0.01 to 0.03 wt % of a wetting additive. A method for enhancing adhesion forces of optically clear adhesives is also disclosed.