313results about "Adhesive processes with surface pretreatment" patented technology

The invention provides a primer composition, a primer as well as a preparation method and application of the primer. The primer composition comprises a component A, a component B and a component C in a mass ratio of (5-10): 1: 1, the component A comprises maleic anhydride modified chlorinated polypropylene, gaseous silicon, carbon black and a first organic solvent; the component B comprises an isocyanate prepolymer and a second organic solvent; the component C comprises epoxy resin, a silane coupling agent and a third organic solvent. The primer can effectively shield visible light, meets the reliability requirement of an automobile terminal, can be directly coated on the surface of automobile glass, and can meet the requirements of customers on light shielding and subsequent reliability after being dried and subjected to injection molding; the adhesive can be applied to bonding of different thermoplastic materials and glass, has a good bonding effect, and does not generate a degumming phenomenon under a strong demolding condition, so that the adhesive has the effect of quickly improving the bonding strength.

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.

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.

The invention relates to a method for joining two components (12, 14) by means of a double-sided adhesive tape (20; 20a; 20b; 20c) to form a component assembly (10; 10a; 10b; 10c), in which the two components (12, 14) are pressed against each other in the region of oppositely arranged joining surfaces (13, 15; 52) of the components (12, 14) with the adhesive tape (20; 20a; 20b; 20c) interposed.

Liquid anaerobic curing component, solid anaerobic hardening component, solid polyether polyvinyl butyral resin, and a curing component for curing the anaerobic curing component; 1. An anaerobic curable composition comprising: Advantageously, the compositions of the present invention are substantially solid and may be used as threadlockers.

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.

A motor-vehicle heat-generating unit is carried by a support with an adhesive tape between the unit and the support. The tape has a core film substrate band having a face turned toward the unit and a face turned away from the unit and toward the support, a thermally conductive adhesive layer between one of the faces and the unit and adhesively securing the band to the unit, and etching on the other face in heat-conducting engagement with the support.

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

To provide a resin-rubber composite having a resin as a base material, which has improved not only an initial adhesion property but also durable adhesion properties such as alkali resistance and warm water resistance.SOLUTION: A resin-rubber composite is formed by stacking, (1a) an organic metallic compound having a chelate ring represented by the general formula (M1: titanium, zirconium, or tin, R: an alkyl group having carbon numbers 1-8, R': a methyl group or an OR group, n: an integer of 1-3), and an alkoxyl group, or (1b) a mixture of the organic metallic compound, and (2) a surface treatment agent layer containing silica in a weight ratio of 90:10 to 50:50 as a solid content ratio, and does not contain a silane coupling agent or its oligomers, a silane-based adhesive layer being an overcoat layer, and an EPDM layer being a rubber layer, or a phenol resin-based adhesive layer being an overcoat layer, a fluorine rubber layer being a rubber layer, and a nitrile rubber layer or a hydrogenated nitrile rubber layer, in this order on an adhesion surface with a rubber of a resin molded article.SELECTED DRAWING: None

The invention discloses an anodic bonding method of a polyurethane-based elastomer and glass. The method comprises a raw material surface cleaning process, a raw material surface activation process, a pre-connection process and an anodic bonding process. According to the anodic bonding method for the polyurethane-based elastomer and the glass, the anodic bonding connection performance is stable, the application range of the polymer elastomer is wide, and effective connection of the polyurethane-based elastomer and the glass sheet is achieved for the first time. The polymer elastomer is not damaged at low temperature, a bonding layer with a certain width and uniform distribution can be ensured, and the bonding strength can reach 0.95 MPa to 2.75 MPa.

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.

The invention belongs to the technical field of cable repairing materials, and discloses a polyurethane adhesive as well as a preparation method and application thereof. The polyurethane adhesive comprises the following components in parts by mass: 100 parts of a curing agent A, 100 parts of masterbatch B, 15-50 parts of a flame retardant C, 1-1.5 parts of toner and 5-100 parts of a primer solution D. According to the invention, the bonding peeling strength with a cable outer sheath material can be realized, and an original sheath body can be torn. By improving the bonding strength, the repair adhesive can be ensured to be tightly combined with the outer sheath of the cable, the damaged area and the thickness are repaired without special extension and thickening, the repaired cable is ensured to be consistent with the thickness of the original cable, the master batch and the curing agent adopt a carbon-black-free filling system, and black, red and yellow modified toner pigments with the same color as the original cable are matched, so that the repair effect is improved. And the repaired color is consistent with the color of the original cable. The problems that a traditional repairing adhesive is usually filled with carbon black, is single in color and is not matched with the primary color of the cable are solved.

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 disclosure relates to the adhesion of polymers to substrates decorated with surface polymers, and methods for forming the same comprising: providing a substrate having polymerization initiators covalently bound to at least a portion of a surface of the substrate, exposing the substrate to a reaction composition comprising a monomer to form surface polymers covalently bound to the polymerization initiators on the substrate, and depositing a polymer on the at least one surface of the substrate, to provide an adhering interface between the surface polymer and the polymer.