1040results about "Adhesive processes" patented technology

The invention discloses a pure bio-based polyhydroxyalkanoate adhesive as well as preparation and application thereof, and belongs to the technical field of degradable adhesives. According to the adhesive, polyhydroxybutyrate valerate or polyhydroxybutyrate hexanoate is used as a matrix, and the acid value reaches 2-15 mg KOH / g through molten end group activation; a reactive emulsifier with a hydrophilic-lipophilic balance value of 9-12 is introduced into a water phase, and the stable aqueous dispersion is prepared through phase inversion high-shear emulsification. The Z-average particle size of the dispersion is 0.12-0.30 [mu] m, and the content of the free surfactant is not higher than 30wt%. After the tackifying resin, the plasticizer and the vegetable wax are compounded, the bio-based carbon content of the obtained adhesive is not lower than 95%, and the volatile organic compound content is not higher than 100 mg / kg. The paper / paper heat sealing strength of the adhesive is not lower than 7.0 N / 15mm, the 180-degree peel strength is not lower than 7.5 N / 25mm, and the adhesive can pass repulping evaluation.

A method for mounting, preferably bonding, an optical element (14) for microlithography to a mounting element (2) is presented and described, as is a mounting device (1) for mounting, preferably bonding, an optical element (14) for microlithography to a mounting element (2). The described method and mounting device are proposed to enable fast and precise mounting of an optical element (14) for microlithography to a mounting element (2), regardless of the diameter of the receiving opening (11) of the mounting element (2). An optical module for microlithography is also described.

[Problem] To provide a novel polarizing plate that inhibits a poor external appearance of a polarizing film due to thermal contraction, and that excels in durability. [Solution] This polarizing plate comprises a polarizing film composed of a polyvinyl alcohol–based resin, and a supporting base material layered on at least one of the surfaces of the polarizing film with a bonding layer therebetween, said supporting base material being light-transmitting, and is characterized in that the bonding layer is composed of a molecular bonding agent that binds the polarizing film and the supporting base material together via a chemical bond.

The various implementations described herein include adhesive compositions for high-voltage focused ultrasound applications. In one aspect, an ultrasound transducer comprises a plurality of tiles. Each tile includes a first electrically conductive layer, a second electrically conductive layer, a plurality of transducer elements disposed between the first electrically conductive layer and the second electrically conductive layer, and a composite structural adhesive (a) disposed between the first electrically conductive layer and the second electrically conductive layer and (b) disposed between respective adjacent transducer elements of the plurality of transducer elements. The composite structural adhesive includes an epoxy resin, fumed silica, and a powder selected from the group consisting of: (i) micronized mica, (ii) bioactive glass powder, and (iii) micronized mica and bioactive glass powder.

The problem addressed by the present invention is to provide a method for manufacturing an optical system for a head-mounted display that allows realization of a head-mounted display that prevents unexpected blurring and bleeding and that is excellent in a sense of immersion. The problem is solved by a method for manufacturing an optical system for a head-mounted display, the method including a bonding step, which is a manufacturing step for a laminate formed by laminating a plurality of optical members and in which a plurality of optical members are bonded and fixed by laminating one optical member on a surface of another optical member, wherein the bonding step includes a step for applying a bonding layer forming composition to one optical member, a step for applying a bonding layer forming composition to another optical member, and a step for using a nip roller to laminate the one optical member and the another optical member such that the bonding layer forming compositions face each other.

The present invention is drawn to an adhesive or binder composition comprising, —a cationic polyelectrolyte, —an anionic polyelectrolyte, —a mineral salt selected from the group consisting of alkaline metal or alkaline earth metal halogenides, —a particulate mineral filler, —a water-soluble polyphenol comprising at least one polyhydroxylated aromatic ring structure, and —water It is also drawn to the use of such a composition as an adhesive, binder, coating or sealant in the construction industry.

To provide a film thickness measurement method that makes it possible to measure the film thickness of an adhesive even when a crack occurs in the adhesive that is separated from a first member and a second member after a curing step.SOLUTION: A film thickness measurement method for an adhesive comprises a placement step, a curing step, a bonding step, and a measurement step. The placement step is for placing an adhesive on surfaces of bonding sites of a first member and a second member through release sheets. The release sheets are for preventing the first member and the second member from being bonded to each other by the adhesive. The curing step is for curing the adhesive. The bonding step is for taking out the cured adhesive and bonding a film. On the film, a position where the thickness of the adhesive is to be measured is marked. The measurement step is for measuring the thickness of the adhesive at the marked position.SELECTED DRAWING: Figure 1

Multi-ply structures incorporating adhesive compositions, products produced from such structures, and methods of producing the structures.

The present invention makes it possible for an object that is being held on an adhesive sheet provided with an adhesive layer having protrusions and recessions on the surface thereof to be picked up by means of a milder operation.　Provided is a method for peeling an object from an adhesive sheet that comprises a base material and an energy reactive adhesive layer having protrusions and recessions on the surface thereof, the adhesive sheet holding the object on the adhesive layer. Energy is applied to the adhesive sheet. The adhesive sheet is expanded in the plane direction. The object is peeled from the adhesive layer of the adhesive sheet after energy has been applied and the sheet has been expanded in the plane direction.

A bonded state prediction system according to the present invention predicts the bonded state of an adhesive object and an adherend when the adhesive object is bonded to the adherend; and this bonded state prediction system comprises a data acquisition unit which acquires two or more pieces of data including physical property information of the object on the two-dimensional coordinates, and a bonded state prediction unit which predicts the bonded state of the object and the adherend using the thus-acquired two or more pieces of data.

The present invention provides a method for manufacturing an adhesive member, comprising the steps of applying an ultraviolet-curable silicone composition containing (A) an organopolysiloxane containing an unsaturated group, (B) an organohydrogenpolysiloxane, and (C) an ultraviolet-activated hydrosilylated platinum catalyst having a cyclopentadienyl group to which a condensed aromatic hydrocarbon group is bonded as a ligand, to a first substrate layer, and including in any order: (i) bonding the first substrate layer to which the ultraviolet-curable silicone composition has been applied to a second substrate layer via a layer of ultraviolet-curable silicone composition; (ii) depressurizing the ultraviolet-curable silicone composition applied to the first substrate layer under a pressure below atmospheric pressure; and (iii) irradiating the ultraviolet-curable silicone composition applied to the first substrate layer with ultraviolet light. The invention also provides an adhesive made of a silicone composition with excellent curability, and an adhesive member with high adhesiveness and high reliability as a component.

To provide an adhesive tape for processing an electronic component capable of stably holding a substrate to be processed.SOLUTION: An adhesive tape 10 for processing electronic components includes a base material 11, a mesh layer 12 having a plurality of openings O1, and an adhesive layer 2 disposed on a first surface S1 of the base material 11. The base material has a sea-island structure having a region X that can be cut by water-jet laser processing from the surface on the adhesive layer side of the adhesive tape for processing electronic components and a region Y that cannot be cut by the water-jet laser processing in a plan view as viewed from the S1 of the second surface side opposite to the S2 of the first surface of the base material, in which the region X is an island and the region Y is a sea.SELECTED DRAWING: Figure 1

Disclosed is a method for manufacturing a separator having a polymer adhesive layer. The method includes preparing an aqueous polymer slurry comprising a particulate binder polymer having a glass transition temperature Tg of 20° C. or more and a particle size D50 of 300 to 800 nm, a wetting agent, and a particulate acrylic binder polymer having a glass transition temperature Tg of −10° C. or less and a particle size D50 of 100 to 200 nm, and coating the aqueous polymer slurry on at least one surface of a polyolefin-containing porous membrane having pores and drying the aqueous polymer slurry.

The invention relates to a preparation method of a double-layer high-temperature adhesive for connecting brass and aluminum oxide, which comprises the following steps: reacting aluminum hydroxide, zirconium hydroxide and dilute phosphoric acid to prepare an aluminum zirconium phosphate adhesive base solution, and compounding silicon powder, boron carbide, titanium powder, nickel powder and the adhesive base solution to prepare a special adhesive for coating a brass surface. And compounding silicon powder, boron carbide, titanium powder, nickel powder, aluminum oxide and the gum base solution to prepare the special adhesive for aluminum oxide surface coating. The brass surface coating special glue is brushed on the brass surface and cured, then the aluminum oxide surface coating special glue is brushed on the aluminum oxide surface, the brass coated with the adhesive and the aluminum oxide coated with the adhesive are attached together in the mode that the bonding surfaces are opposite, and the brass / aluminum oxide double-layer bonding piece is obtained after pressing and curing and can serve in the high-temperature environment. The method has the advantages that the special glue for brass surface coating and the special glue for aluminum oxide surface coating have high thermal expansion coefficient matching with brass and aluminum oxide, and thermal stress can be relieved; the double-layer adhesive can provide the bonding strength which can reach 1.3 MPa at the temperature of 500 DEG C.

The composition includes an acrylic monomer having a carboxylic acid group, an acrylic monomer having a hydroxyl group, at least one of an alkyl acrylate or alkyl methacrylate, and from 15 to 22 percent by weight of a compound composed of divalent segments L and at least two X groups. The divalent segments L are represented by formula L. Each segment L is independently directly bonded to two secondary N atoms, two tertiary N atoms, or a secondary and a tertiary N atom. Each R1 represents an alkylene group having from 1 to 4 carbon atoms, and at least some of the R1 groups are —CH2—CH2—CH2—CH2—. Each X group is independently represented by the formula CH2═C(R)—C(O)—O—V—W—C(O)—. Articles and methods using the composition are also described.

Methods of tuning one or more properties of a multipart structural adhesive composition, the method including providing a Part 1 of the multipart structural adhesive; providing at least a first sub-Part 2 and a second sub-Part 2 of the multipart structural adhesive; and causing to be formed the multipart structural adhesive by combining the Part 1, the first sub-Part 2, and the second sub-Part 2, wherein the amount, ratio, or both of the first sub-part 2 and the second sub-Part 2 impact the one or more properties of the multipart structural adhesive composition, wherein the amounts or ratios of the Part 1, the first sub-Part 2 and the second sub-Part 2 affect the one or more properties of the multipart structural adhesive composition, and wherein the multipart structural adhesive has an overlap shear strength of at least about 0.75 MPa (109 psi).

An electrostatic chuck includes a base plate, a ceramic plate fixed to the base plate and including an electrode embedded in the ceramic plate, and a resin layer bonding the base plate and the ceramic plate and including one or more adhesives. In at least one of the one or more adhesives, a temperature corresponding to an extreme value of a loss tangent in a temperature range of −150° C. to 250° C. is −70° C. or lower.

This easily dismantlable adhesive sheet (100) comprises an adhesive layer (10) containing a moisture-cured product of a silyl group-containing resin and a terpene phenolic tackifying resin, wherein the silyl group-containing resin has a polyoxyalkylene structure in a main chain, has, in a portion of the main chain or a side chain, both bonds among a urethane bond and a urea bond or one bond among the urethane bond and the urea bond, and has hydrolyzable silyl groups represented by formula (1) at both ends of the main chain. (In formula (1), X1 and X2 are each independently a hydroxy group or an alkoxy group, R is a C1-C20 alkyl group, and * is a bonding position.)

The invention discloses synthetic resin and an adhesive for a medical oxygen anaesthetic mask as well as a preparation method and application of the synthetic resin and the adhesive, and the synthetic resin is prepared by the following steps: carrying out ring-opening reaction on KH-560 and KH-550 to generate a siloxane intermediate with hydroxyl, and modifying polyurethane by using the siloxane intermediate; the adhesive comprises the following components in parts by weight: 100 parts of synthetic resin, 45-95 parts of a reactive diluent and 4-14 parts of a photoinitiator, and the reactive diluent mainly comprises isobornyl acrylate, N, N-dimethylacrylamide, tetrahydrofuran acrylate and hydroxyethyl acrylate; compared with the prior art, the adhesive prepared from the synthesized modified resin has the advantages that the adhesive can be quickly cured under the irradiation of an LED lamp, the energy consumption is low, and automatic production is facilitated; the oxygen mask has the characteristics of good surface dryness, good flexibility, no blistering at constant temperature and humidity, firmness of a PC (Poly Carbonate) surface cup and a PVC (Polyvinyl Chloride) air bag for bonding the oxygen mask, and the like.

The present disclosure provides a printable structural adhesive composition. The present disclosure further provides methods for applying a structural adhesive onto a substrate, the method comprising printing the structural adhesive onto the substrate. Printing may be carried out by jet printing, pad printing, screen printing and / or stencil printing.

The present invention relates to a method for preparing a curable composition based on pulverized composite material obtained from recycling discarded composite components, such as old pipes or rotor blades from wind power plants. The pulverized composite material can replace virgin short glass fibers and fumed silica that are typically used in such compositions used as structural adhesives, essentially without any adverse effect on performance.

The present invention relates to a method for permanently bonding a membrane (2, 3) of a humidifier (1) for a fuel cell system to at least one component (3, 4) of the humidifier (1). In summary, an adhesive (9) is applied to a membrane (2) of the humidifier (1), penetrating open pores (10) of the membrane (2, 3) and wetting a section (7) of a surface (8) of the membrane (2, 3). Upon curing of the adhesive (9), an adhesion promoter layer (11) with comparatively good adhesive properties is formed on the membrane (2, 3). The adhesion promoter layer (11) can be used to create a tight and permanent bond between the membrane (2, 3) and at least one component (3, 4) of the humidifier (1). The invention further relates to a humidifier (1) for a fuel cell system with at least one membrane bonded in this manner.

The invention discloses a two-component polyurethane adhesive as well as a preparation method and application thereof, and the adhesive comprises a component A and a component B in parts by weight, the component A is prepared from 15 to 30 parts of hydroxyl-terminated polybutadiene, 20 to 40 parts of polyester polyol, 5 to 15 parts of epoxy modified polyether polyol, 1 to 5 parts of phosphate ester, 1 to 5 parts of micromolecular dihydric alcohol chain extender, 2 to 10 parts of silane coupling agent, 1 to 5 parts of thixotropic agent, 20 to 50 parts of filler, 5 to 15 parts of flame retardant and 0.1 to 0.5 part of catalyst; the component B is prepared from the following components in parts by weight: 60 to 80 parts of polyisocyanate and 20 to 40 parts of polyurethane prepolymer. The bi-component polyurethane adhesive is used for bonding SMC or metal, has high strength and high elasticity, balances the thermal expansion coefficient difference between the SMC and the metal, and can realize reliable bonding of the SMC without complex surface treatment.

A component processing method is provided that can prevent damage to the workpiece (component, etc.) even when a rigid substrate is peeled off from the workpiece. The component processing method of the present invention includes: a lamination step in which a rigid substrate, an ultraviolet absorbing layer, and a workpiece are sequentially laminated; a processing step in which the workpiece is processed; and a peeling step in which the ultraviolet absorbing layer is irradiated with ultraviolet light to peel the rigid substrate off from the workpiece.

An adhesive set includes a main agent containing a decomplexing agent and an initiator containing an organoborane complex. The decomplexing agent contains maleic anhydride. At least one of the main agent and the initiator further contains a compound having a radically polymerizable group. At least one of the main agent and the initiator further contains at least one selected from the group consisting of a metal halide salt and a compound having a thiocarbonyl thio structure.

To provide a method for manufacturing a laminate and a laminate for increasing the bonding strength between silicon substrates.SOLUTION: A method includes: a step for preparing a first composition in which a first junction portion 13 of a first silicon substrate 10 and a second junction portion 23 of a second silicon substrate 20 comprise a portion containing silicon oxide, and the composition contains at least one of an organic material capable of reacting with hydrosilyl groups and / or silanol groups and an inorganic material capable of bonding with silicon oxide, and the particle count is 3,000 particles / mL or less; and a step for bonding or adhering the first junction portion and the second junction portion using at least one of an organic material and an inorganic material, using the organic material and / or reaction products derived from the organic material, or providing an adhesive layer 30, and the adhesive layer includes a first adhesive portion 31 provided on the first junction portion, and the number of particle clusters contained on the surface opposite the first junction portion of the first adhesive portion is 5 particles / cm2 or less.SELECTED DRAWING: Figure 1

To provide a temporary fixing adhesive that has conformability to uneven structures (step conformability), high heat resistance (reflow resistance), and laser peelability, can suppress substrate warping after support peeling, has excellent solvent removal properties, and provides good solderability of component electrodes after removal of the temporary fixing adhesive, and to provide a method for temporarily fixing components and processing methods using the same. [Solution] A temporary fixing adhesive composition comprising a resin (A) and an organometallic compound (B), wherein the resin (A) contains an alcoholic hydroxyl group or a phenolic hydroxyl group, and is a resin whose mass loss rate relative to the mass before heating is 5% at a rate of 10°C / min in an atmospheric atmosphere using thermogravimetric differential thermal analysis, and the film thickness reduction rate (R) after immersion in toluene, cyclohexanone, or N-methylpyrrolidone is 95% or more.

To provide an adhesive sheet which can be efficiently processed after use and in addition, to provide a processing method capable of increasing the processing efficiency of the used adhesive sheet.SOLUTION: There is provided an adhesive sheet having a base material and an adhesive layer, wherein the base material is composed of a laminate having a first layer and a second layer having a greater shrinkage rate when heated than the first layer. The second layer is preferably provided on the adhesive layer side than the first layer. In addition, there is provided a processing method which comprises: a peeling step of peeling the adhesive sheet adhered to an adherend from the adherend; and a heating step of heating and shrinking the peeled and used adhesive sheet.SELECTED DRAWING: Figure 1

The purpose of the present invention is to provide: an adhesive composition from which an adhesive layer, which firmly bonds members when no voltage is applied and sufficiently reduces an adhesive force by applying voltage, can be formed; an adhesive sheet including an adhesive layer formed of said adhesive composition; and a bonded body. The present invention pertains to: an adhesive composition containing a polymer, an ionic liquid, and a tackifier having a hydroxyl value of at most 150 mg KOH / g; an adhesive sheet including an adhesive layer formed of said adhesive composition; and a bonded body.

Disclosed is a method for manufacturing an electrode assembly for use in a battery, the method comprising receiving an electrode stack comprising a plurality of electrode sheets stacked in a stacking direction, the electrode stack having a first side, a second side opposite to the first side and a third side extending between the first and second sides, the first and second sides extending perpendicular or substantially perpendicular to the stacking direction; arranging a first adhesive tape on the first and third sides of the electrode stack such that the first adhesive tape covers the first side at least in part and a portion of the third side abutting the first side; arranging a second adhesive tape on the second and third sides of the electrode stack such that the second adhesive tape covers the second side at least in part and a portion of the third side abutting the second side; and attaching the first adhesive tape and the second adhesive tape to each other for securing the electrode sheets in the electrode stack.