The purpose of the present invention is to provide: a polyester-based pressure-sensitive adhesive layer, for which a pressure-sensitive adhesive composition (pressure-sensitive adhesive solution) without any acrylic pressure-sensitive adhesive or the like which needs a large amount of an organic solvent and is difficult to apply thickly; to provide a polyester-based pressure-sensitive adhesive layer that is friendly to the global environment, can be applied thickly, has a high level of cost effectiveness and workability, and also has a high level of adhesion, retention, and repulsion resistance; and to provide a pressure-sensitive adhesive tape or double-sided pressure-sensitive adhesive tape having such a pressure-sensitive adhesive layer. The invention is directed to a polyester-based pressure-sensitive adhesive layer including a product made from a polyester-based pressure-sensitive adhesive composition including: a polyester obtained by polycondensation of at least a dicarboxylic acid component and a diol component; and a tackifier, the polyester-based pressure-sensitive adhesive layer having a gel fraction of 15% by weight or more to less than 40% by weight.

Disclosed is a composition comprising: a) an condensate of one or more aminohydrocarbyl alkoxy silanes and one or more alkenyl alkoxy silanes; b) one or more mercaptohydrocarbyl alkoxy silanes; and c) water; wherein the composition is useful as a primer useful with adhesives or coatings containing polymers having isocyanate functional groups, alkoxysilane functional groups or both. The composition may include one or more epoxyhydrocarbyl silanes. The composition may include one or more alkanols in sufficient amount to improve the volatilization of the liquid components away from substrate surface.

The present invention relates to a release layer for a metal foil with carrier and a metal foil with carrier including the release layer. The release layer is designed for easy removal of the carrier and includes one or more nitrogenous heterocyclic compounds and one or more inorganic compounds containing at least one metal selected from the group consisting of nickel, molybdenum, cobalt, phosphorus, manganese, and iron.

A bonding sheet according to the present invention contains a matrix resin; solder particles; and a fluxing agent. In the bonding sheet, the solder particles are dispersed in the matrix resin, and the fluxing agent is unevenly distributed around the solder particles in the matrix resin. The method for producing the bonding sheet of the present invention includes a first step of dissolving a fluxing agent in a first solvent to prepare a fluxing agent solution; a second step of mixing a second solvent, a matrix resin component, solder particles, and the fluxing agent solution to prepare a mixed composition; and a third step of applying the mixed composition onto a substrate to form a coated film, and then drying the coated film to form a bonding sheet.

The present disclosure relates to the technical field of adhesion property improvement, particularly to a process and device for improvement treatment of a polyester cord and a rubber adhesive. By filling an extremely few amount of calcined gypsum powders into chloroprene rubber to be secondarily stirred and extruded while adding fatty acid calcium and an anti-aging agent and uniformly mixing a stirring and mixing component using a specific solvent, the adhesion behavior between the rubber adhesive and the polyester cord is increased, and the bonding strength between the rubber adhesive and the polyester cord is improved; furthermore, through mutual connection and installation of the extrusion modification component, stirring and mixing component and the compounding modification component, continuous operation of modification treatment of the polyester cord and the rubber adhesive, the structure is simple, and use is convenient.

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.

The present disclosure relates to the technical field of adhesion property improvement, particularly to a process and device for improvement treatment of a polyester cord and a rubber adhesive. By filling an extremely few amount of calcined gypsum powders into chloroprene rubber to be secondarily stirred and extruded while adding fatty acid calcium and an anti-aging agent and uniformly mixing a stirring and mixing component using a specific solvent, the adhesion behavior between the rubber adhesive and the polyester cord is increased, and the bonding strength between the rubber adhesive and the polyester cord is improved; furthermore, through mutual connection and installation of the extrusion modification component, stirring and mixing component and the compounding modification component, continuous operation of modification treatment of the polyester cord and the rubber adhesive, the structure is simple, and use is convenient. .

Provided is an adhesive composition, an adhesive product, and a method of preparing an adhesive composition. The adhesive composition including lysine, oxaloacetic acid, and water, wherein the lysine and the oxaloacetic acid are present in the form of an aqueous salt solution and do not form precipitates in the aqueous solution.

A family of low-molecular-weight, main-chain thermotropic liquid-crystalline polyimides (TLC-PI) that are crosslinkable is disclosed. These all-aromatic TLC-PI are derived from (i) wholly aromatic and flexible diamine monomers, in which the linkage between the two aniline-ends contains a relatively high heat-tolerant but flexible chain constituted by two or more units of 1,4-phenoxy or 1,3-phenoxy or in combinations of both. Processes of making and using such all-aromatic TLC-PI is also provided.

A family of low-molecular-weight, main-chain thermotropic liquid-crystalline polyimides (TLC-PI) that are crosslinkable is disclosed. These all-aromatic TLC-PI are derived from (i) wholly aromatic and flexible diamine monomers, in which the linkage between the two aniline-ends contains a relatively high heat-tolerant but flexible chain constituted by two or more units of 1,4-phenoxy or 1,3-phenoxy or in combinations of both. Processes of making and using such all-aromatic TLC-PI is also provided.