205results about "Adhesive processes with surface pretreatment" patented technology

The invention relates to a method for sealing a substrate, comprising at least steps 1) and 3), by applying at least part of a solvent-based composition to a surface of the substrate to at least part form a film (1) on said surface, applying at least part of a sealant composition to the film obtained after step 1) to form a sealant film (3), wherein the sealant composition is obtainable by mixing at least two components A) and B) of a sealing system, which are present separately, with one another, the solvent-borne composition applied in step 1) comprising at least one aliphatic hydrocarbon as an organic solvent component a1) in an amount of at least 70.0 wt.-%, based on the total weight of the composition, at least one organometallate as component a2) in an amount of at least 70.0 wt.-%, based on the total weight of the composition, the present invention relates to a method for preparing a solvent-borne composition comprising at least one metal acid salt, the metal of which is selected from Ti and Zr, and at least one organosilane as component a3), sealing substrates obtainable by this method, the use of this solvent-borne composition as an adhesion promoting composition, the solvent-borne composition itself, and a kit comprising said solvent-borne composition.

The present invention is a laser release composition comprising a compound (I) having a hydroxyphenyltriazine skeleton with a maximum absorption wavelength (Amax) in a wavelength range of 300 nm to 500 nm. Thus, the present invention provides a laser release composition configured to facilitate bonding between a support and a substrate, enable a heavily stepped substrate to be formed with a uniform film thickness, exhibit high compatibility with steps of forming a TSV and forming a wiring on the back surface of a wafer, have excellent resistance to wafer thermal processing such as chemical vapor deposition (CVD), allow for facile peeling of the substrate from the support, and enable removal of resin without contaminating the substrate, thereby enhancing the productivity of thin substrates.

Thermoplastic primer compositions may include a high surface energy thermoplastic resin having a surface energy of 37 dynes / cm or greater, at a percent by weight (wt %) of 55 wt % to 90 wt %; a low surface energy thermoplastic resin having a surface energy of less than 37 dynes / cm, at 10 wt % to 45 wt %; wherein the thermoplastic primer composition has a glass transition temperature in the range of 60° C. to 120° C. Multilayer compositions may include a substrate having a surface energy of 37 dynes / cm or greater; a primer layer containing a thermoplastic primer composition; and one or more thermoset adhesive layers.

To provide a surface-treated metal material used for adhesive joining and capable of further improving adhesive durability, and a joined body including the surface-treated metal material. A surface-treated metal material includes: a metal base material; and a silane film provided on at least a part of a surface of the metal base material, in which a surface of the silane film has an absorption peak in a wave number region of 1250 (cm-1) or more and 1150 (cm-1) or less in a case where parallel polarized light having an incident angle of 75° is incident and an absorption spectrum is measured by Fourier transform infrared spectroscopy, and the surface of the silane film has an aspect ratio of 0.5 or more in a case where a surface roughness is measured using a laser microscope in a measurement range of 1 mm × 1 mm at any three positions.

A composition in the form of a solution or dispersion comprising an anhydride-modified polyolefin, an anhydride-modified styrene block copolymer, and an isocyanate-containing crosslinker, wherein the anhydride-modified polyolefin and the anhydride-modified styrene block copolymer are present in a combined amount of 7 wt% to 18 wt% of the composition, the weight ratio of the anhydride-modified polyolefin to the anhydride-modified styrene block copolymer being in the range of 2:1 to 6:1, the weight ratio of the combined anhydride-modified polyolefin and the anhydride-modified styrene block copolymer to the isocyanate-containing crosslinker being in the range of 0.2:1 to 0.5:1, and the solvent includes a ketone as a first solvent and an alkylbenzene or alkane solvent. The composition can be used for bonding TPO to TPU, polyester, or PU. The composition can be used for bonding a first TPO component or coating to a second TPU, polyester, or PU component by applying heat and, optionally, pressure, and the resulting adhesion improves peel strength.

A primer composition includes a solvent, a conductive filler dispersed in the solvent, and a polymer in at least one state dissolved or dispersed in the solvent. The polymer includes at least one of polyurethane, polyacrylate, polyamide, or rubber. An adhesive system comprises an electrically conductive composition and an electrodebonding adhesive comprising an ionic liquid. The use of the primer composition as a primer on a non-conductive substrate in combination with an electrodebonding adhesive is also described. A method of making a bonded article and an article bonded with the adhesive system disclosed herein and / or made by the method disclosed herein are also described.

The present invention relates to a primer composition that is soluble in cutting oil while being free of organic solvents. The primer composition when combined with an acrylic-based adhesive composition has high tensile strength and quick fixture times and is particularly useful on low surface energy or inactive metal substrates such as C5 electrical steel coated substrate. The primer composition includes a nitrogen-containing compound, a copper-based catalyst, and one or more monomer components, the monomer components including a mixture of hydroxypropyl methacrylate (HPMA) and 3,3,5-trimethylcyclohexyl methacrylate (TMCHMA).

The invention relates to the technical field of rubber conveying belts, and discloses a method for treating the surface of a rubber conveying belt to enhance adhesive force through low-temperature plasma, and the method comprises the following steps: guiding a to-be-treated rubber conveying belt into a plasma treatment chamber, according to the method, in-situ activation is carried out on the surface of the rubber conveying belt by utilizing non-equilibrium low-temperature plasma, and a composite interface with high-density polar functional groups and a nanoscale topological structure is constructed on the surface layer of the rubber by accurately regulating and controlling physical and chemical parameters of the non-equilibrium plasma; the internal conflict of'activity improvement 'and'strength maintenance' in the traditional method is fundamentally solved; the method has the remarkable advantages of being high in process controllability, high in environmental friendliness, wide in applicable material range, good in compatibility with an existing production line and the like, and the strict interface performance requirement of the modern heavy industry for the high-reliability and long-service-life rubber conveying belt can be met.

The application provides a modified polyurethane primer and a preparation method thereof. The preparation raw material of the modified polyurethane primer comprises 15-25 parts of tackifying resin, 15-25 parts of crosslinking resin, 5-9 parts of pigment carbon black, 0.5-1.0 part of catalyst and 50-60 parts of solvent, the tackifying resin is obtained by the reaction of first polyester diol, diisocyanate and hydroxyl-terminated organic silicon modified rosin-based end-capping agent, the hydroxyl-terminated organic silicon modified rosin-based end-capping agent is obtained by the reaction of epoxy silane and rosin, and the crosslinking resin is obtained by the reaction of triisocyanate, second polyester diol and polyamino silane. The modified polyurethane primer provided by the application has excellent initial adhesion performance under low temperature (about 0 DEG C) conditions, meanwhile, the primer has the characteristics of strong adhesion, excellent storage stability, good durability, wide substrate adaptability and the like, is very suitable for use in cold winter environment, and can obviously shorten the fixture removal time of a main engine factory and the fast driving-off time in the after-sales market.

Disclosed herein are systems for treating a substrate. The system may include a cleaner composition, a deoxidizing composition comprising a Group IVA metal and / or a Group IVB metal and free fluoride and having a pH of 1.0 to 3.0, and / or a seal composition. The system may also include a coating composition. The cleaner composition, deoxidizing composition, and / or seal composition may comprise a homopolymer or a copolymer comprising a phosphorous-containing monomeric subunit m1. Also disclosed is a deoxidizing composition comprising a Group IVA metal and a Group IVB metal and free fluoride and having a pH of 1.0 to 3.0. Also disclosed are methods of treating a substrate. Also disclosed are treated substrates.

The present invention relates to a specific triazinesilane compound, its oligomer, a mixture containing said compound and / or said oligomer, and respective storage and working solutions.Furthermore, the present invention relates to a synthesis method for said specific triazinesilane compound, and the use of said working solution as a surface treatment liquid.

Provided herein is a novel primer formulation used in a bonded assembly, wherein the bonded assembly comprises A) a substrate; B) a primer layer formed from the primer formulation; and C) an adhesive layer, wherein the primer layer is placed between the substrate and the adhesive layer, and wherein the primer formulation comprises i) at least one film-forming resin selected from polyolefin resins, polyester, copolyester resins, and mixtures of these; and ii) a solvent.

A method of bonding first and second substrates to each other the substrates having respective bonding surfaces to be bonded together, comprising:(a) applying to the bonding surface of at least the first substrate a redox-active metal catalyst primer to form a primed surface;(b) activating the primed bonding surface of the first substrate by exposing the primed bonding surface to actinic radiation;(c) applying, to the so activated bonding surface of the first substrate, and / or or to the bonding surface of the second substrate, a UV curable anaerobic adhesive;(d) mating the bonding surfaces together with the UV curable anaerobic adhesive therebetween; and(e) exposing the UV curable anaerobic adhesive between the mated surfaces to actinic UV radiation. The method is particularly suited for obtaining bonds with good tensile shear strength with electrical substrates coated with an insulating varnish.

The present invention relates to a joining method for metal-metal and metal-plastic bonds and to parts produced therewith. For example, the parts may be a cooling element, through which a fluid can flow, for accumulators of electric or hybrid vehicles. The joining method comprises a preparation of the parts and subsequent integral bonding of the parts by means of a powder coating.

Method for manufacturing a vehicle camera system (3, 3') in which a housing (5) of the vehicle camera system (3, 3') and an optical unit (6) of the vehicle camera system (3, 3') comprising a lens carrier (7) and at least one lens (8) are provided, wherein the lens carrier (7) is formed with a mounting flange (16) and a housing part (4) of the housing (5) is formed with a hole (13) and a mounting surface (18) surrounding the hole (13), wherein the optical unit (6) is arranged such that it extends through the hole (13) into the interior (10) of the housing (5), characterized by the fact that A defined surface modification is created on a top surface (17) of the mounting flange (16) and / or on the mounting surface (18) using laser radiation prior to the application of an adhesive (15) to the top surface (17) and / or the mounting surface (18), thereby increasing the adhesion of the adhesive (15) to it, wherein the surface modification with the laser radiation removes one or more atomic layers from the top surface (17) and / or the mounting surface (18), wherein the surface modification with the laser radiation results in a defined structuring of the top surface of the mounting flange and / or the mounting surface, and wherein, after the laser beam exposure, the top surface (17) is bonded to the mounting surface (18) with the adhesive (15). and During surface modification with laser radiation, a defined material processing of the top surface (17) and / or the contact surface (18) is carried out, such that the top surface (17) and / or the contact surface (18) has a defined surface energy, whereby such structuring is carried out that the value of the surface energy is generated in a defined manner depending on the structuring-liquid adhesive pair.

This release agent composition for release by irradiation with light includes a polymer and a solvent, the polymer including a first structure, a second structure, and a third structure, wherein the first structure has a structure that absorbs light to impart releasability to a release agent layer formed from the release agent composition, the second structure has a -Si-O-Si- structure in a main chain of the polymer, and the third structure has an aromatic hydrocarbon ring and / or a heterocyclic ring.

To provide a method which manufactures an adhesion object showing excellent adhesiveness by confirming a surface treatment level of a member in advance with a wet reagent and which does not need to visually perform wetness determination.SOLUTION: A manufacturing method of an adhesive comprises: a step of performing a surface treatment on a first member; a step of measuring surface free energy by using a dye-containing wet reagent; a step of determining whether a desired surface treatment is performed; a step of forming an adhesive layer by applying an adhesive; and a step of manufacturing an adhesion object by sticking second members to each other. The surface free energy measurement step is the step of determining wetness by a wetness determination method by applying a reagent constituting the wet reagent to the first member. The wetness determination method comprises: a step of acquiring an image of a member applied with the reagent; a step of performing binarization such that a place where the reagent exists and a portion where the reagent does not exist are discriminated from each other; a step of obtaining an area of the place where the reagent exists; and a step of performing determination of wetness on the basis of a ratio of the area of the place where the reagent exists to an area applied with the reagent.SELECTED DRAWING: None

The invention discloses a production process and equipment for a non-woven fabric and fiberboard composite product, and belongs to the field of production of non-woven fabric and fiberboard composite products. Fiberboard pretreatment: activating the surface of the fiberboard by adopting a low-temperature plasma technology, and introducing a polar group to the surface of the fiberboard to enhance the surface energy of the fiberboard; and then nano-scale roughening treatment is conducted, a micro nano concave-convex structure is formed on the surface of the fiberboard through the laser engraving technology, and the specific surface area of the surface is increased. According to the method, the process improvement of combining the low-temperature plasma technology and the nanoscale roughening treatment is adopted in the fiberboard pretreatment stage, multiple polar groups are successfully introduced to the surface of the fiberboard, the surface energy of the fiberboard is increased to 65 mN / m from 35 mN / m, meanwhile, a microcosmic nanometer concave-convex structure is engraved by means of laser engraving equipment, the specific surface area of the surface is increased by 60%, and the specific surface area of the surface is increased by 60%. And the binding force between the fiberboard and the non-woven fabric is greatly enhanced.

The present invention relates to novel multi-layered device including environment friendly, PVC free and VOC free self-adhering film capable of being transferred onto diverse substrates, without the use of solvents and extensive pre-working of surfaces as is essential in conventional painting / printing applications. The multilayered device includes at least four layers, a first “Base layer” (A), a second “Release Layer” (B) on the “Base Layer” (A), a third “Pressure Sensitive Adhesive (PSA) Layer” (C) on the “Release Layer” (B), followed by a fourth “Top Coat Layer” (D) on the “PSA Layer” (C). The combination of Layers (A) and (B) forms the Release Liner [(A)(B)]. The combination of Layers (C) and (D) forms the self-adhering film [(C)(D)] of 15 GSM to 300 GSM and is separable from the Release liner [(A)(B)].

The present invention relates to a method for preparing a bonded structure, the method comprising treating a surface of a polyolefin component to provide an activated polyolefin surface; applying an adhesive directly to the activated polyolefin surface and the surface of the metal component; and curing the adhesive to form an adhesive joint between the polyolefin component and the metal component wherein the adhesive comprises a polyurethane structural adhesive comprising an isocyanate component and a polyol component wherein the isocyanate component has a density greater than 1.2 g / ml and the polyol component has a density greater than 1.2 g / ml. The polyol component has a density greater than 1.5 g / ml, or a combination thereof.

Provided is a method for producing a surface-treated metal material in which a complicated pretreatment step and a pretreatment solution are not required before a step for forming a film on the surface, whereby a burden on the environment can be reduced, and a surface-treated film can be easily formed at low cost. A method for producing a surface-treated metal material in which at least a part of the surface of a metal substrate (1) is provided with a silane coating film, the method comprising: a shot peening step for spraying abrasive grains (2) for shot peening onto at least a part of a region (R) of the surface of the metal substrate; a coating step for coating a metal treatment solution containing a silane compound on the surface of the metal substrate (1) subjected to shot peening; and a drying step in which the metal substrate (1) coated with the metal treatment solution is dried to form a silane film.

The present disclosure is concerned with a method of gluing a metal part to another part, the metal part and the other part in particular intended for being used in a personal care device such as an electric toothbrush. The method has the steps of providing a metal part, in particular a steel part, and another part, in particular another metal part, treating a surface portion of the metal part intended for being glued to the other part with ultra-fast laser pulses having a pulse length in the femtosecond range, in particular in the range of between 1 to 990 femtoseconds, so that a surface layer of the metal surface is removed, applying an adhesive to the treated surface of the metal part or to a surface of the other part, and gluing the metal part and the other part together.

The preparation method comprises the following steps: S1, under the protection of nitrogen, mixing hexaethylcyclotrisiloxane, octamethylcyclotetrasiloxane, dimethyl dialkoxy silane and an acid catalyst, reacting, adding a weakly alkaline substance to terminate the reaction, and filtering to obtain an oligomer A; s2, adding alkoxy silane into the oligomer A, uniformly mixing, and adding a boric acid compound into the mixture for condensation reaction to obtain a polysiloxane oligomer; s3, the polysiloxane oligomer is dissolved in an organic solvent, and the low-temperature flexible primer is obtained. According to the invention, the polysiloxane oligomer containing the diethylsiloxy chain link, the siloxy group, the boron element and the like at the same time is prepared, and the interface bonding strength of the silicone rubber is improved and the low-temperature flexibility function is realized by utilizing the empty orbital effect of boron atoms, the low-temperature characteristic of the diethylsiloxy chain link and the hydrolysis reaction effect of the siloxy group. The preparation method has the advantages of cheap and easily available raw materials and mild reaction conditions.

The invention belongs to the technical field of water-based prime coats matched with automobile structure bonding glue, and particularly discloses a water-based prime coat matched with the automobile structure bonding glue and a preparation method of the water-based prime coat. The primer comprises the following components in parts by weight: 100 parts of an environment-friendly solvent; 0.5-3 parts of an activating auxiliary agent; 1-10 parts of a bonding aid; 0.1 to 1 part of an anti-hydrolysis agent; 0.1 to 0.5 part of a wetting agent; wherein the activating auxiliary agent is transition metal coordination acid doped water-soluble polyaniline. The primer disclosed by the invention is high in stability, relatively low in corrosion to a metal substrate, free of whitening and powder falling on the surface of the substrate after volatilization and curing, safe, environment-friendly, capable of realizing single-component primer coating, convenient to construct and operate, easy to obtain in production and convenient for mass production.

The invention relates to an adhesive tape system comprising a film D of a heat-activated reactive adhesive and a primer composition, a method for producing a bonded composite using the adhesive tape system, the bonded composite produced by the method, a method for electrically releasing the bonded composite, and the use of the bonded composite. The adhesive tape system comprises (i) a film D of a reactive heat-activated adhesive, wherein the reactive heat-activated adhesive contains at least one electrolyte; and (ii) a primer composition designed to form a separate layer and comprising at least the following components: (a) at least one thermoplastic polyurethane; and (b) at least one organosilane.

The present invention provides a surface treatment liquid that can form an organic film sufficiently excellent in adhesive properties between metal and resin and is also excellent in chemical resistance properties, the surface treatment liquid being excellent in storage stability. The present invention relates to a metal surface treatment liquid for forming an organic film on a metal surface, wherein the surface treatment liquid contains a silane coupling agent and an acid and has a pH of 1.9 or less.

A primer layer-forming composition for forming a primer layer having a cleavage structure in which chemical bonds are irreversibly cleaved in response to external stimuli, the composition containing a film-forming component and a solvent, and satisfying at least one among the following conditions (A) and (B).　Condition (A): The film-forming component has the cleavage structure.　Condition (B): The film-forming component has two types of partial structure capable of reacting with each other to form the cleavage structure.

The invention relates to a method for adhering a polyamide substrate to a thermoplastic elastomer layer using an adhesion primer based on an aminosilane deposited by atmospheric pressure plasma deposition. It also relates to an article such as a guide rail intended to guide the movement of a movable glazing unit of a vehicle, which guide rail comprises a polyamide substrate and a thermoplastic elastomer layer that adheres to the substrate by means of an adhesion primer based on an aminosilane, characterised in that adhesion is obtained by means of such a method. The invention also relates to a glazing unit comprising such a guide rail, a movable glazing unit accommodated in the guide rail and, optionally, an element to which the guide rail is attached.

Method for producing a composite resistant material (5), comprising the following steps: preparing at least two component bodies (13, 14, 15, 16) consisting of a material selected from fibre materials such as carbon fibre, aramid fibres, metallic or non-metallic inorganic fibres, ceramic materials such as alumina, boron or silicon carbide, metallic materials such as aluminium, brass, lead, steel, plastic materials such as polyamide, cleaning the outer coupling surface of said bodies (13, 14, 15, 16) preparing at least two adjacent bodies with a free gap (11), coating the clean surface of said bodies (13, 14, 15, 16) with an adhesive; drying said bodies (13, 14, 15, 16); pre-heating said bodies (13, 14, 15, 16) until the reduction of the surface viscosity of said adhesive; coupling said bodies (13, 14, 15, 16) with a thermosetting polymer until filling said gap (11); hardening the polymer and complete activation of the bond of said adhesive with said polymer.

This bonded and stacked core manufacturing method is for manufacturing a bonded and stacked core by performing press working on a strip-shaped steel sheet with a press working oil applied to one surface or both surfaces thereof, applying an adhesive to one surface of the strip-shaped steel sheet to obtain a plurality of steel sheet components, and stacking and bonding the steel sheet components, in which a curing accelerator having an average viscosity of 0.01 Pa·s to 100 Pa·s is applied to one surface or both surfaces of the strip-shaped steel sheet before the press working oil is applied.