878 results about "Adhesion promoters" patented technology

The invention discloses a low-warpage damp-heat-resistant liquid epoxy molding compound as well as a preparation method and application thereof. The liquid epoxy molding compound is prepared from the following raw material components in parts by mass: 85 to 90 parts of modified silicon dioxide, 5 to 8 parts of naphthalene type epoxy resin monomer, 5 to 8 parts of anhydride curing agent, 0.1 to 0.3 part of coupling agent, 0.1 to 0.3 part of adhesion promoter and 0.2 to 0.5 part of temperature response type amine catalyst. The modified silicon dioxide is obtained by carrying out surface modification on micron-sized silicon dioxide by adopting a silane coupling agent containing an epoxy group, and the mass of the silane coupling agent containing the epoxy group is 0.3-0.8% of the mass of silicon dioxide. The liquid epoxy molding compound provided by the invention has excellent flowability, adhesive force and heat and humidity resistance, can significantly relieve and reduce the warping of a silicon wafer, and is suitable for integrated circuit packaging.

The invention belongs to the technical field of coatings, and particularly relates to a fluoride-free anti-icing coating and a preparation method and application thereof.The coating comprises a component A and a component B, and the mass ratio of the component A to the component B is 100: 16.3-19.5; wherein the component A comprises the following components in parts by weight: 60-65 parts of modified acrylic resin; 1-1.5 parts of a low surface energy additive; 8 to 10 parts of nano silicon dioxide; 3-5 parts of a lubricating filler; 0.3 to 0.5 part of a dispersant; 0.5 to 1.5 parts of an adhesion promoter; 16.5 to 27.2 parts of a compound solvent; and the component B is aliphatic polyisocyanate resin. The anti-icing coating has a low surface energy hydrophobic effect and a dynamic lubricating effect, and has excellent anti-icing performance under the synergistic effect of the low surface energy hydrophobic effect and the dynamic lubricating effect.

The invention relates to the technical field of coating preparation, and discloses a high-adhesion quick-drying inorganic zinc silicate shop primer and a preparation method thereof.The high-adhesion quick-drying inorganic zinc silicate shop primer is prepared from modified zinc powder, modified graphite powder, a sodium silicate solution, alpha-phase nanometer AlO, a quick-drying agent, an adhesion promoter, heat-resistant filler, a dispersing agent, a defoaming agent and a diluting solvent; the quick-drying agent is prepared by compounding zinc naphthenate, EDTA and titanium isopropylate according to the mass ratio of 1: (0.2-0.3): (0.4-0.6), the quick-drying agent accelerates the reaction by catalyzing hydrolysis of silicate through zinc salt, chelating of EDTA and metal ions, titanium isopropylate provides titanium ions to synergistically form a film and improve the quick-drying efficiency, the adhesion promoter is prepared by compounding KH-560 and E-44 epoxy resin according to the mass ratio of 3: 1, and the adhesion promoter is prepared by compounding epoxy resin and epoxy resin. The adhesion promoter enhances interface mechanical occlusion and adhesion through silane bonding base materials and epoxy resin, other raw materials are matched with the adhesion promoter to accelerate the drying speed of the primer, and a coating coated with the primer is not prone to stripping and peeling. The application has the effects of improving the adhesive force and drying speed of the inorganic zinc silicate shop primer.

The invention discloses an antiskid sewage-resistant waterborne coating and a preparation method thereof, and relates to the technical field of tableware coatings. The water-based paint comprises a liquid A and a liquid B, the liquid A comprises the following components in parts by weight: 35-60 parts of emulsion type organic silicon aqueous dispersion resin; 3 to 10 parts of maleic anhydride grafted polypropylene wax emulsion; 5-10 parts of an elastomer modified acrylic dispersion; 0.5 to 1.2 parts of a dispersant; 1-3 parts of a thickening agent; 3-8 parts of a nanoscale aluminum oxide dispersion liquid; 15-25 parts of a water-based color paste; 0.3-1 part of an emulsifying ripple auxiliary agent; 0.1-1 part of a substrate wetting agent; 0.1 to 1 part of a defoaming agent; 3-5 parts of deionized water; the liquid B comprises the following components in parts by weight: 90-100 parts of a water-based isocyanate curing agent, 0.3-0.8 part of a dehydrating agent, 5-8 parts of an adhesion promoter and 2-5 parts of a coalescing agent. The invention provides an innovative two-component water-based paint system, through the synergistic effect of the components after the liquid A and the liquid B are mixed, the multiple requirements of tableware or catering auxiliary appliances on the skid resistance, stain resistance, adhesive force and environment friendliness of the coating are comprehensively met, and the coating completely meets the high-standard requirements of food contact materials.

The invention belongs to the technical field of photovoltaic materials, and provides a photovoltaic profile and a preparation method and application thereof. The preparation method comprises the following steps: carrying out surface conditioning and phosphorization on a steel substrate (carbon steel or recycled steel or low alloy steel), carrying out electrophoretic deposition by using epoxy thermosetting electrophoretic primer, and pre-drying; the outer surface of a workpiece is coated with fluorocarbon finish paint (the fluorocarbon finish paint comprises the following raw materials in specific content: polyester resin with a certain viscosity hydroxyl value, fluorocarbon resin with a certain viscosity hydroxyl value, pigment filler, an organic solvent, a wetting leveling agent, a dispersing agent, a defoaming agent, an adhesion promoter and an aliphatic isocyanate curing agent), and curing is performed. And an electrophoretic primer layer with the thickness of 15-25 microns and a fluorocarbon finish layer with the thickness of 20-30 microns are formed on the outer surface of the steel substrate through curing. According to the photovoltaic profile, the electrophoretic primer layer and the fluorocarbon finish paint layer are formed on the low-cost steel substrate through one-time curing, the process can be simplified, the cost can be reduced, the paint layer is thin, and the photovoltaic profile further has long-term excellent adhesive force, aging resistance, corrosion resistance, weather resistance, gloss retention and the like.

The invention provides LED-UV (Light Emitting Diode-Ultraviolet) curing ink as well as a preparation method and application thereof, and the LED-UV curing ink is prepared from the following components in parts by weight: 30 to 50 parts of modified polyurethane acrylate resin, 15 to 30 parts of modified epoxy acrylate resin, 10 to 15 parts of amino resin, 15 to 30 parts of acrylate monomer, 6 to 10 parts of photoinitiator, 1 to 3 parts of adhesion promoter, 2 to 4 parts of coupling agent, 0.5 to 1 part of defoaming agent and 1 to 2 parts of flatting agent. The modified polyurethane acrylate resin is hydroxyl and / or carboxyl modified polyurethane acrylate resin; the modified epoxy acrylate resin is polyurethane modified epoxy acrylate resin. After the ink is photo-cured, a paint film has good flexibility, adhesive force and chemical resistance; the hardness, the curing speed and the chemical resistance of a paint film can be improved; the adhesive force to a base material can be promoted; and the water resistance and the wine soaking resistance of a paint film are enhanced.

The invention provides a water-based coating for wind power tower tube steel and a preparation method and application thereof.The water-based coating for the wind power tower tube steel comprises, by weight, a component A: 5-15 parts of modified acrylic emulsion, 30-60 parts of epoxy emulsion, 10-30 parts of hydrophobic group modified organic amine polymer, 1-10 parts of adhesion promoter and 1-30 parts of flaky filler; 1-30 parts of a salt spray resistant filler; and a component B: 5-30 parts of a hydrophobic group modified isocyanate prepolymer. The modified acrylic emulsion, the epoxy emulsion, the hydrophobic group-modified isocyanate prepolymer and the hydrophobic group-modified organic amine polymer are subjected to multiple crosslinking to form a network interpenetrating structure, so that the adhesive force and corrosion resistance of the water-based coating for the wind power tower tube steel are remarkably improved, and meanwhile, the problem that in the construction process of the coating, the water-based coating is not prone to cracking is solved. The ultrahigh film thickness cannot be sprayed at one time; and the drying speed is low.

The invention discloses a single-component high-heat-resistance type epoxy adhesive and a preparation method of the single-component high-heat-resistance type epoxy adhesive. The adhesive is prepared from the following components in parts by weight: 30 to 40 parts of N, N-4, 4 '-diphenylmethane bismaleimide; 50 parts of bisphenol F epoxy resin; 36.47 parts of 4, 4 '-diaminodiphenyl sulfone; 20 to 40 phr of phenyl glycidyl ether; 1 to 2 phr of two terminal type epoxy silicone oil; 4 to 6 phr of hydroxyl-terminated polyether sulfone; 10 to 20 phr of boron nitride, the surface of which is modified by gamma-glycidyl ether oxypropyl trimethoxy silane; and 1 to 3 phr of an adhesion promoter. According to the adhesive disclosed by the invention, the heat resistance, the mechanical property, the dimensional stability, the process adaptability and the like are synergistically improved, the use requirements of an aviation structural part on long-term service at 150-180 DEG C and an electronic packaging device on the condition of short-time reflow soldering at about 200 DEG C can be met, and the reliability of the adhesive in a high-temperature environment is remarkably improved.

The invention discloses a high-temperature-resistant high-stripping organic silicon pressure-sensitive adhesive and a preparation method thereof, and relates to a pressure-sensitive adhesive and a preparation method thereof. The invention aims to solve the problems of insufficient temperature resistance, low peel strength and poor binding force with a base material of the existing organic silicon pressure-sensitive adhesive. According to the invention, phenyl siloxane rubber, hydroxyl-terminated polysiloxane and methyl vinyl MQ silicon resin are used as basic raw materials, and polysilazane is used as a heat-resistant modifier to carry out heat-resistant modification on the chemical structure of the pressure-sensitive adhesive; a trifunctional allyl silane monomer is added in the film preparation process, so that the crosslinking density of the system is improved, and the heat resistance of the pressure-sensitive adhesive is further improved; the bonding force between the pressure-sensitive adhesive and a polyimide substrate is improved by adding the peroxysilane coupling agent, and the use of a primer in the coating process is omitted; by adding the hydroxyl MQ silicon resin and the phosphate adhesion promoter, the bonding strength of the pressure-sensitive adhesive is improved, and the high-temperature-resistant and high-stripping organic silicon pressure-sensitive adhesive is prepared. According to the invention, the high-temperature-resistant and high-stripping organic silicon pressure-sensitive adhesive can be obtained.

The invention discloses an isothiazolinone non-curing coating and a preparation method thereof, and relates to the technical field of waterproof coatings. The coating comprises a base material, a compound isothiazolinone antibacterial agent, a mixed stabilizer, a compound plasticizer, a compound anti-aging agent, a filler, an adhesion promoter and a solvent, the compound type isothiazolinone antibacterial agent is prepared by mixing and compounding 2-methyl-4-isothiazolin-3-ketone and 5-chloro-2-methyl-4-isothiazolin-3-ketone according to a mass ratio of (1 to 3): 1, and the compound type isothiazolinone antibacterial agent is prepared by mixing and compounding 2-methyl-4-isothiazolin-3-ketone and 5-chloro-2-methyl-4-isothiazolin-3-ketone and 5-chloro-2-methyl-4-isothiazolin-3-ketone; the mixed stabilizer is formed by mixing organic bentonite, polyamide wax and fumed silica; the defects that an existing non-curing coating is poor in antibacterial performance, insufficient in aging resistance and poor in formula compatibility are overcome.

The invention relates to the technical field of stoving varnish materials, and particularly discloses a scratch-resistant alkali-resistant stoving varnish material and a preparation method thereof, the scratch-resistant alkali-resistant stoving varnish material comprises the following raw materials by weight: 35-40 parts of aqueous acrylic resin, 15-20 parts of amino resin, 7-11 parts of a filler aid, 5-8 parts of a scratch-resistant alkali-based functional agent, 3-5 parts of a silane coupling agent KH560, 2-5 parts of a film-forming cosolvent, 2-5 parts of an adhesion promoter, 1-3 parts of a leveling agent, and 20-25 parts of deionized water. According to the scratch-resistant alkali-resistant baking varnish material, the waterborne acrylic resin, the amino resin, the silane coupling agent KH560, the film-forming cosolvent, the adhesion promoter and the flatting agent are used as functional additives, and meanwhile, the functional agent based on the scratch-resistant alkali and the filler additive are added to be blended and matched to achieve common synergism, so that the hardness and the adhesion of the obtained product are harmoniously improved, and the scratch-resistant alkali-resistant baking varnish material has the advantages of simple preparation process and low cost. The alkali-resistant and scratch-resistant stability effects are obvious.

The invention discloses a high-adhesion UV LED coating composition and a preparation method thereof. The high-adhesion UV LED coating composition is prepared from the following raw materials in parts by weight: 50 to 70 parts of composite oligomer, 90 to 120 parts of composite reactive diluent, 1.5 to 2.5 parts of composite photoinitiator, 0.8 to 1.8 parts of composite adhesion promoter, 5 to 15 parts of inorganic filler, 0.6 to 1.5 parts of fluorine-modified acrylate flatting agent and 0.1 to 0.7 part of light stabilizer. The UV LED coating composition disclosed by the invention can be well combined with untreated low-polarity plastic, smooth metal surfaces and the like, has high adhesive force and is not easy to peel off after being subjected to external force.

The invention relates to a low-cobalt-salt adhesion promoter and a preparation method thereof, and relates to the technical field of rubber adhesives, the low-cobalt-salt adhesion promoter is of a core-shell structure and comprises, by mass, 10-15 parts of core metal precursor powder, 15-20 parts of a shell SiO2 shell layer and 5-8 parts of long-chain alkylsilane grafted to the surface of the SiO2 shell layer; the metal precursor powder comprises cobalt hydroxide, manganese hydroxide and ferric hydroxide, and the molar ratio of the cobalt hydroxide to the manganese hydroxide to the ferric hydroxide is 1: (2-3): (1-1.5). According to the invention, the dispersibility of the low-cobalt salt adhesion promoter and the compatibility with rubber can be effectively improved.

To provide an environmentally friendly fire retardant thermal insulation paint, excellent in adhesiveness of a coating, difficult to fall off, and having relatively high fire retardancy, thermal insulation and crack resistance and a producing method thereof.SOLUTION: A fire-retardant thermal insulation paint is produced from raw materials composed, by weight percentage, of 8 to 15% styrene-acrylic emulsion, 10 to 18% adhesion promoter, 10 to 20% thermal insulation agent, 20 to 30% fire retardant, 2 to 5% wetting dispersant, 3 to 6% viscosity modifier, 4 to 9% other additives, and the remainder water. The producing method is as follows: In step S1, the viscosity modifier and water are mixed to prepare a mixed solution; in step S2, the adhesion promoter and wetting dispersant are mixed with the mixed solution to prepare a dispersion; in step S3, the fire retardant is mixed with the dispersion to prepare a flame-retardant dispersion; and in step S4, the styrene-acrylic emulsion, thermal insulation agent, and other additives are mixed with the fire-retardant dispersion.SELECTED DRAWING: None

The invention discloses a method for in-situ rapid growth of a dual-network hydrogel coating on the surface of a base material by a one-step method, which comprises the following steps: putting the base material with an adhesion initiation layer on the surface into a hydrogel precursor solution, and carrying out in-situ polymerization for 0.1-10 minutes under light irradiation, wherein the adhesion initiation layer comprises an adhesive compound based on a catechol group and a first photoinitiator, and the hydrogel precursor solution comprises a natural polymer containing tyrosine, an acrylic monomer, a cross-linking agent and a second photoinitiator, and wherein the first photoinitiator and the second photoinitiator are different from each other and are independently selected from a divalent ruthenium compound and a persulfate. Compared with the prior art, the natural / synthetic polymer double-network gel coating with biological activity and mechanical property can grow on the surfaces of different substrates more quickly and efficiently through a one-step method; and the base material, the surface of which is modified by the in-situ grown double-network hydrogel coating, obtained by the method can be applied to in-vivo medical apparatuses and instruments.

The invention provides a preparation method of a zirconium acetate surface layer shell for titanium alloy precision investment casting, which comprises the following steps: S1, taking a zirconium acetate binder and an anti-redissolution inhibitor, adding an adhesion promoter and deionized water under a stirring condition, and uniformly stirring to obtain a surface layer binder; s2, mixing a surface layer binder with the surface layer refractory powder, adding a wetting agent, and uniformly dispersing the materials to obtain a surface layer coating; s3, performing vacuum negative pressure defoaming on the surface layer coating; s4, in a vacuum negative pressure state, after the wax mold is subjected to uniform slurry soaking in the surface layer coating and pressure maintaining is conducted for 60-300 s, sand spraying and drying are conducted on the wax mold subjected to slurry soaking, and a surface layer shell is obtained; s5, a dewaxing hole of the surface layer shell is opened, and staged hot steam dewaxing is carried out; s6, the dewaxed surface layer shell is roasted, and a shell is obtained; according to the method, redissolution of the zirconium gel surface layer can be effectively inhibited, the compactness of the surface layer can be improved, and the conditions of redissolution, peeling, falling and the like of a zirconium gel surface layer shell process in titanium alloy precision investment casting can be obviously improved.

The invention relates to the technical field of UV composite adhesive processing, in particular to a UV composite adhesive and a preparation method thereof. The water-based adhesive is prepared from the following raw materials in parts by weight: 30-40 parts of an epoxy modified acrylate prepolymer, 15-25 parts of a polyurethane acrylate polymer, 10-20 parts of a multifunctional acrylate monomer, 4-6 parts of an organic silicon modified acrylate prepolymer, 2-4 parts of a photoinitiator and 1-2 parts of an adhesion promoter. The UV composite adhesive prepared according to the formula has good flexibility, bending resistance and durability and can bear large deformation without cracks in the use process of a flexible electronic device, and the reliability of the device in repeated folding and curling operation is remarkably improved.

The invention relates to the technical field of electronic component packaging materials, and discloses an epoxy powder composition for a micromotor, a preparation method and application, the composition comprises solid bisphenol A epoxy resin, polyfunctionality epoxy resin with functionality greater than 2, crystalline epoxy resin, an anhydride curing agent, a curing accelerator, a filler and an adhesion promoter, and other auxiliary agents such as a flexibilizer, a pigment and the like. Through the synergistic effect of specific components, the defects in the prior art are overcome, and the composition is high in curing speed and high in heat resistance; the cured coating is high in hardness, good in toughness and strong in adhesive force to a metal base material, and can effectively resist winding impact and cold and hot impact without cracking; the powder has excellent recycling performance in electrostatic fluidized bed coating, stability of coating parameters of an automatic production line can be guaranteed, and the powder utilization rate is remarkably increased; and meanwhile, the product meets the environmental protection requirements of no halogen, RoHS2.0 and the like.

An ultraviolet ink composition includes from 25 wt % to 50 wt % of a pigment dispersion, from greater than 0 wt % to 10 wt % of a photoinitiator package; from 10 wt % to 42 wt % of a reactive diluent; from 10 wt % to 20 wt % of a multifunctional monomer; and from 0 wt % to 25 wt % of a difunctional monomer. An ink primer includes from 2 wt % to 10 wt % of an adhesion promoter configured to bond to glass and from 90 wt % to 98 wt % of a solvent configured to promote bonding of the adhesion promoter to the glass. Another ink primer includes from 2 wt % to 10 wt % of an adhesion promoter configured to bond to glass, from greater than 0 wt % to 10 wt % of a photoinitiator package; and from 30 wt % to 45 wt % of a monofunctional monomer.

The invention discloses a modified polyaniline synergistic flaky zinc-aluminum waterborne epoxy anticorrosive coating and a preparation method thereof. The anticorrosive coating comprises a component A and a component B in a mass ratio of (4-5): 1, the component A is prepared from the following components in parts by weight: 8 to 16 parts of waterborne epoxy resin, 55 to 75 parts of zinc powder, 5 to 10 parts of flaky zinc-aluminum powder, 0.3 to 0.6 part of a dispersing agent, 0.5 to 1 part of an anti-settling agent, 0.1 to 0.3 part of dodecylbenzene sulfonic acid doped polyaniline, 1 to 2 parts of an adhesion promoter and 6 to 10 parts of a first solvent; and the component B comprises the following components in parts by weight: 3-7 parts of a water-based amine curing agent, 1-2 parts of an anti-flash-rust auxiliary agent, 5-10 parts of a second solvent and 2-5 parts of deionized water. The obtained coating is compact, excellent in corrosion resistance, good in adhesive force, few in organic volatile matter, easy to prepare, convenient to operate and completely free of chromate, and the corrosion resistance far beyond that of conventional paint is achieved.

The invention discloses a ceramic fire-resistant sealant for a bridge, a fireproof structure, a preparation device and a preparation method, and relates to the technical field of sealants for the bridge. The ceramic fire-resistant sealant for the bridge comprises the following specific components in parts by weight: 100 parts of an MS polymer; 0 to 100 parts of a plasticizer; 80 to 150 parts of aluminum hydroxide; 80 to 150 parts of modified wollastonite; 50 to 100 parts of calcium carbonate; 10 to 20 parts of zinc borate; 10 to 20 parts of melamine polyphosphate; 5 to 10 parts of dipentaerythritol; 5 to 10 parts of a dewatering agent; 5 to 10 parts of an adhesion promoter; and 0.5-2 parts of a catalyst. According to the ceramic fire-resistant sealant for the bridge, a rubber body formed after vulcanization is converted into a self-supporting ceramic body under the condition of high temperature or open fire, flame is prevented from diffusing into a material, so that the purposes of flame retardance and fire prevention are achieved, meanwhile, the mechanical property is not obviously attenuated before and after thermal aging, and good elasticity is still kept; and the vulcanized paint has excellent adhesive force to the paint, so that the use effect of the paint is guaranteed.

This invention provides a high-strength, impact-resistant acrylic adhesive. Using an independent synthesis method, an acrylate-modified rubber elastomer with carboxyl groups is prepared. This elastomer can be chemically bonded to an acrylic polymer. The resulting hydroxyl groups can further react with an isocyanate curing agent. Adhesion is enhanced by using an acrylic phosphate adhesion promoter and a multifunctional acrylate monomer to increase crosslinking density, enabling the foam tape prepared with this acrylic adhesive to maintain high bonding strength even at high temperatures. The foam tape prepared with this high-strength, impact-resistant acrylic adhesive exhibits a 180° peel strength of greater than 3200 gf / in at room temperature and greater than 800 gf / in at 85°C. It also exhibits a drop impact energy of greater than 0.65 J and a DuPont impact energy of greater than 0.90 J.

The invention relates to the technical field of new energy battery materials, and discloses a preparation method of UV ink-jet ink for a new energy battery and a UV resin synthesis method of the UV ink-jet ink. Comprising the following components: 15%-25% of self-developed polyurethane acrylate UV resin, 60%-75% of a reactive diluent, 1%-5% of a photoinitiator, 1%-5% of nano UV color paste, 0.05%-1% of an auxiliary agent, 0.1%-1% of fumed silica and 0.5%-2% of an adhesion promoter. The preparation method comprises the following steps: S1, adding the self-developed polyurethane acrylate UV resin, the reactive diluent, the photoinitiator and the auxiliary agent into a stirrer together, and stirring in a dark environment at the temperature of not more than 40 DEG C until the materials are uniformly mixed to form a transparent base material. By optimizing the raw material ratio and the preparation process of the UV ink-jet ink and combining with the specific synthesis path of the self-developed polyurethane acrylate UV resin, the problems that a traditional PET blue film process is poor in cohesiveness and low in breakdown voltage resistance and a UV spraying process wastes materials and pollutes the environment are solved, and accurate printing of the ink on the surface of a new energy battery cell can be achieved.

The invention provides a high-adhesion and high-impact-resistance type hydrophilic membrane treating agent, which is prepared from the following ingredients in parts by weight: 40 to 60 parts of epoxy-polyurethane composite emulsion, 10 to 20 parts of nanometer composite hydrophilic agents, 5 to 15 parts of adhesion promoters, 8 to 12 parts of impact resistance modifiers and 0.5 to 2 parts of wetting flatting agents. The high-adhesion and high-impact-resistance type hydrophilic membrane treating agent is good in adhesion, high in impact resistance, good in hydrophilicity and resistant to corrosion.

The invention relates to the field of film-forming resins for CTP plate coatings, in particular to a film-forming resin for a CTP plate coating and a preparation method of the film-forming resin, and aims to solve the problems of the film-forming resin for the CTP plate coating in the aspects of photosensitive resin, adhesive force and oxidation resistance. The preparation method comprises the following steps: carrying out free radical copolymerization on three monomers of tert-butyl acrylate, acrylic acid and phenyl methacrylate to prepare a series of intermediate copolymers, and reacting glycidyl methacrylate with carboxyl in the intermediate copolymers to introduce photocurable double bonds. By adding the modified antioxidant and the modified high-adhesion promoter, the performance of the CPT plate can be greatly improved, so that the film-forming resin of the prepared CTP plate coating is comprehensively improved in five key indexes of light sensitivity, imaging resolution, printing resistance, storage life and scene adaptability of the CPT plate, and the film-forming resin is particularly suitable for modern printing requirements of high precision, long plate number and multiple scenes; and material support is provided for cost reduction and benefit increase in the printing industry.

An organosiloxane has formula (I), wherein each subscript n independently has an average value of 2 to 18, each R1 is an independently selected monovalent hydrocarbyl group; each R is independently selected from H or a functional group containing a moiety selected from an acrylate group, an alcohol group, an alkoxy group, an epoxy group, an isocyanate group, a methacrylate group, or a urethane group; each D is an independently selected divalent hydrocarbyl group of 2 to 6 carbon atoms; and L an organosilicon linker. The organosiloxane is useful in various application such as a crosslinker or a co-crosslinker in silicone release coating compositions or an adhesion promoter in curable liquid silicone rubber compositions.

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.

A radiation curable composition comprising at least one polymerizable compound and an adhesion promoter, characterized in that the adhesion promoter includes: —a polymerizable group selected from the group consisting of an acrylate, a methacrylate, an acrylamide, a methacrylamide, a styrene, a maleimide, a vinyl ether and a vinyl ester; and—an adhesion promoting group containing at least one nitrogen containing five or six membered heteroaromatic ring.

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 invention discloses a tinplate snap lid outer coating suitable for a strong alkali sterilization process, which comprises the following raw materials in percentage by weight: 40 to 60 percent of organic silicon modified polyester resin, 5 to 15 percent of amino resin, 5 to 15 percent of blocked isocyanate, 20 to 40 percent of solvent, 0.2 to 5.0 percent of wax powder, 0.01 to 0.5 percent of acid catalyst and 0.05 to 1.0 percent of defoaming agent. 0.5%-2.0% of an adhesion promoter, 0.01%-0.5% of a leveling agent; according to the organic silicon modified polyester resin, 2, 2, 4, 4-tetramethyl-1, 3-cyclobutanediol is introduced into polyester resin, and gamma-glycidyl ether oxypropyl trimethoxy silane is grafted into the polyester resin. The coating forms a protective coating on the surface of tinplate, has excellent mechanical properties, flexibility, machinability and water resistance, and can obviously improve the defects of the coating in high-temperature sterilization under a strong alkali condition.