A thermal bonding sheet includes a layer, in which an average area of a pore portion in a cross section of the layer after being heated at a heating rate of 1.5 C./sec from 80 C. to 300 C. under pressure of 10 MPa, and then held at 300 C. for 2.5 minutes is in a range of 0.005 m.sup.2 to 0.5 m.sup.2.

Provided are a seal tape and a secondary battery. The seal tape for adhering an electrode assembly includes a pressure-sensitive adhesive layer including a cured product of a pressure-sensitive adhesive composition including a polymer including a polar functional group-containing monomer as a polymerization unit, and is expanded in contact with an electrolyte solution to be detached from the electrode assembly, and therefore, isotropic volume expansion and contraction of the electrode assembly may be induced by repeated charging and discharging of a secondary battery and a disconnection phenomenon in which an electrode is disconnected may be prevented.

The present disclosure is directed to a formulations of cements and methods for bonding dissimilar materials. The formulations and methods can bond a Non-polyvinyl chloride (PVC) containing first polyolefin that is amorphous or has low crystallinity to a second material that is a rigid material or a hard PVC. The methods and formulations can work by co-dissolution at an interface, or activation of a one of the materials prior to bonding.

Disclosed belongs to the technical field of displaying, and particularly relates to a sealant tape, a display panel and methods for manufacturing the same. The sealant tape comprises a substrate and an adhesive layer provided on at least one side of the substrate, wherein the substrate comprises a first elastomer, and the adhesive layer comprises a second elastomer and a crosslinking agent. Both of the substrate and the adhesive layer of the sealant tape are formed of elastomeric materials, and the adhesive layer further comprises a crosslinking agent to adjust the storage modulus thereof, such that the sealant tape can withstand a higher stress while provides excellent bending performance, and has a higher viscosity to ensure that it will not be unglued when the display panel is folded and thus it can be prevented from being damaged during folding or bending of the flexible display panel, ensuring good packaging performance.

A window film includes a base layer and a coating layer formed on the base layer. The coating layer contains a silicone resin, and the window film contains a dye having a maximum absorption wavelength of about 500 nm to about 650 nm. A display includes the window film, and may be a flexible display.

The present disclosure relates to a two-component polyurethane adhesive, based on a polyol component A and a polyisocyanate component B. The two-component polyurethane adhesive exhibits fast cure speed, good adhesion properties and good durability. The two-component polyurethane adhesive is developed for the adhesion adhesion of substrates, wherein the substrates are preferably selected from the group comprising sheet molding compounds (SMCs) and plastic substrates.

Provided are a seal tape and a secondary battery. The seal tape for adhering an electrode assembly includes a pressure-sensitive adhesive layer including a cured product of a pressure-sensitive adhesive composition including a polymer including a polar functional group-containing monomer as a polymerization unit, and is expanded in contact with an electrolyte solution to be detached from the electrode assembly, and therefore, isotropic volume expansion and contraction of the electrode assembly may be induced by repeated charge and discharge of a secondary battery and a disconnection phenomenon in which an electrode is disconnected may be prevented.

A polymer foam adhesive tape including: a substrate film; a polymer foam layer provided on one surface of the substrate film; a first adhesive layer provided on the polymer foam layer; and a second adhesive layer provided on the other surface of the substrate film, in which the polymer foam layer has a density of 0.3 g/cm.sup.3 or less, and a thickness ratio of the substrate film to the polymer foam layer is 1:3 to 1:10.

A bonding system for bonding a plastic substrate to another substrate, the bonding system comprising a plastic substrate wherein the plastic substrate is impregnated with a transition metal; and an anaerobically curable composition. Cure of the anaerobically curable composition is initiatable by the transition metal when the anaerobically curable composition is contacted with the plastic substrate under anaerobic conditions.

An adhesive composition is provided that includes a block copolymer present at greater than or equal to 30 total weight percent of the adhesive system comprising a high glass transition temperature in subunits Y and Y, each of the subunits Y and Y having a high glass transition temperature of from 70? C. to 130? C. with a low glass transition temperature subunit Z having a low glass transition temperature of from ?100? C. to 10? C. intermediate between said high glass transition temperature acrylate subunits to define a structure Y-Z-Y. The triblock copolymer is dissolved in a monomer curable under free radical. A free radical initiator of a peroxide or a hydroperoxide are present in combination with a sulfonyl chloride, dihydropyridine and copper or vanadium salt. By heating the cured adhesive at or above 70? C., the adhesive is amenable to being removed, repaired, or reworked.