25results about "Halogen rubber derivative adheisves" patented technology

The invention relates to a special single-coating type heat vulcanization adhesive for bonding butyl rubber and metal and a preparation method thereof, and the special single-coating type heat vulcanization adhesive comprises liquid rubber, a vulcanizing agent, diphenylmethane-4, 4 '-diisocyanate MDI, epoxy modified phenolic resin, pigment carbon black, fumed silica, titanium dioxide, zinc oxide and an organic solvent. According to the single-coating type heat vulcanization adhesive, the bonding strength of butyl rubber and metal is greatly improved, the bonding performance is excellent, the bonding strength is obviously higher than that of a heat vulcanization adhesive of metal and an elastomer material, the high temperature resistance and salt resistance of a bonding interface are excellent, the peel strength is still kept to be 11 kN / m or above in a salt spray experiment and a boiling water experiment, and the service life of the adhesive is prolonged. The environment resistance such as wear resistance, corrosion resistance and heat resistance is excellent.

A phase-separated polymeric composition comprising a first phase including polyurethane domains; and a second phase including a butyl rubber matrix.

To provide a fluororubber pressure-sensitive adhesive composition excellent in adhesion and tackiness without detriment to the heat resistance, chemical resistance, weatherability, flame retardancy, etc., inherent in fluororubber.SOLUTION: A fluororubber adhesive composition comprising a modified fluororubber containing unsaturated bonds or unsaturated bonds and functional groups and having a Mooney viscosity ML1 + 10 (121 °C) of 10 to 80, and an acrylic copolymer-containing acrylic adhesive having a glass-transition temperature Tg of 20 °C or lower. The acrylic adhesive is used at a ratio of 10 to 400 parts by weight with respect to 100 parts by weight of the modified fluororubber.SELECTED DRAWING: None

This fluororubber tackiness agent composition is obtained by blending an acrylic tackiness agent containing an acrylic copolymer having a glass transition temperature Tg of 20°C or lower into a modified fluororubber that has a Mooney viscosity ML1+10 (121°C) of 10-80 and that has an unsaturated bond or includes a functional group and an unsaturated bond. The acrylic tackiness agent is used at a proportion of 10-400 parts by weight with respect to 100 parts by weight of the modified fluororubber. The fluororubber tackiness agent composition exhibits excellent adhesiveness and tackiness without making any compromise to heat resistance, chemical resistance, weather resistance, flame retardancy, etc., inherent to fluororubbers.

An adhesive film includes: a resin film layer; and an adhesive layer laminated to the resin film layer, in which the adhesive layer includes an adhesive agent, the adhesive layer is in a B stage state, an oxygen transmission rate at 200° C. of the resin film layer, measured in accordance with JIS K7126-1, is 1.50×10−10 cc·cm / cm2·sec·cmHg or less, and a 3% thermal weight reduction temperature of the adhesive agent is 320° C. or higher.

One embodiment of the present invention relates to a chloroprene latex composition and a method for producing an adhesive product, wherein the chloroprene latex composition contains a chloroprene latex (A) containing a chloroprene-based polymer satisfying requirement (a-1), and a tackifier (B) having a softening point of 85-155°C as measured by a ring-and-ball method. (a-1) The tetrahydrofuran insoluble fraction α [mass%] in 100 mass% of the chloroprene-based polymer and the melting enthalpy β [mJ / mg] of the chloroprene-based polymer as measured by differential scanning calorimetry (DSC) satisfy the following formula. Logβ ≥ −0.022 × α + 1.0

An embodiment of the present invention relates to a bonded object or a method for manufacturing a bonded object, the bonded object having bases bonded therein while placing an adhesive layer in between, the adhesive layer being obtained from a fluororubber composition that contains at least one fluororubber selected from fluoroelastomer (FKM) and perfluoroelastomer (FFKM), and has a Mooney viscosity (ML 1+10) at 121° C., measured in accordance with ASTM D1646, of 80 to 115.

The present invention relates to the technical field of adhesives, with the classification number IPC C09J123 / 26, and discloses a heat-curable adhesive and a preparation method thereof. By mass fraction, the raw material composition includes: 5-20 parts of functional rubber, 1-15 parts of modified phenolic resin, 1-15 parts of special vulcanizing agent, 1-15 parts of metal salt, 1-15 parts of metal oxide, 1-15 parts of filler, and 70-75 parts of solvent. The present invention prepares a heat-curable adhesive with excellent bonding performance, aging resistance, impact resistance and stability by carrying out phenol red modification on phenolic resin, controlling the phenol content in the phenol red-modified phenolic resin, compounding the special vulcanizing agent, functional rubber and phenol red-modified phenolic resin, and compounding the filler carbon black N642 with the functional rubber.

Disclosed is an aqueous adhesive composition which comprises an admixture of: (a) a first aqueous composition comprising, (i) one or more film forming polymers, (ii) one or more lower crystallinity polynitroso compounds, (iii) one or more higher crystallinity polynitroso compounds, and (iv) one or more bismaleimide-containing monomers; and (b) a second aqueous composition comprising (i) an aqueous dispersion of at least one phenolic resin which is a condensation product of a phenol and formaldehyde, wherein the aqueous dispersion is stabilized by at least one polyacrylate; (b) one or more latices formed from one or more halogenated polyolefins; and (c) one or more metal oxides.

The present invention relates to a self-sealing rubber composition and self-sealing adhesive for tires, and a preparation method therefor. By means of excellent airtightness, flowability and self-adhesion capability of butyl rubber, rubber containing a diene structural unit and liquid polyisobutylene, a micro-crosslinking mode using a pyrrolinone-type crosslinking agent is used to enhance dimensional stability at high temperature, while keeping the flowability; and by means of the reinforcing and filling functions of carbon black and an inorganic filler and the tackifying effect of resin and by means of using the "like dissolves like" principle with the liquid polyisobutylene rubber, the self-sealing rubber composition is prepared by mixing. The positions outside airtight layers of tires corresponding to treads are coated with the prepared rubber composition having the self-sealing property, so as to form self-sealing layer structures; said self-sealing layer structures can ensure the rubber performance in environments of -45℃ to 120℃, and prevent the tires from leaking air when foreign matters below 6 mm puncturing the tires are removed; in addition, foam or other sound-absorption materials can be attached to the self-sealing layer structures to manufacture quiet tires or tires having both self-sealing and soundless functions.

The invention belongs to the field of metal bonding, and particularly relates to an adhesive composition for bonding baking-resistant rubber and metal and a preparation method of the adhesive composition. The adhesive composition is prepared from the following raw materials: modified halogen sulforubber, a nitroso compound cross-linking agent, an acid-binding agent, an adhesion accelerant and a dispersing agent, the preparation method comprises the following steps: firstly grinding and mixing the nitroso compound cross-linking agent, the accelerant, the dispersing agent and the like to prepare mother liquor, and then mixing with the modified halogen sulforubber and the like. The adhesive composition still keeps activity at 160-200 DEG C, is suitable for various elastomers, and is resistant to high-temperature fluid, resistant to corrosion and high in process adaptability.

The present invention, in one aspect thereof, relates to an adhesive, a bonded object, or a method for producing a press-bonded object. The adhesive comprises a fluoroelastomer and is for use in bonding bases in the presence of carbon dioxide in a liquid, gas / liquid mixture, or approximately liquid state. The bonded object is one obtained by bonding two or more bases with the adhesive. The method for producing a press-bonded object comprises step 1, in which two or more bases are press-bonded in the presence of both the adhesive comprising a fluoroelastomer and carbon dioxide in a liquid, gas / liquid mixture, or approximately liquid state.

A fluororubber binder composition in which an acrylic binder containing an acrylic copolymer having a glass transition temperature Tg of 20 DEG C or less is blended in a modified fluororubber having an unsaturated bond or having an unsaturated bond and a functional group and having a Mooney viscosity ML1 + 10 (121 DEG C) of 10-80. The acrylic binder is used in a ratio of 10 parts by weight to 400 parts by weight with respect to 100 parts by weight of the modified fluororubber. The fluororubber adhesive composition does not damage the heat resistance, chemical reagent resistance, weather resistance, flame retardancy and the like of fluororubber, and shows excellent adhesion and cohesiveness.

The invention provides a rubber adhesive and a preparation method thereof, and the rubber adhesive comprises the following raw material components in parts by weight: 5-20 parts of chlorinated rubber; 5 to 15 parts of anhydride modified phenolic resin; 2-5 parts of a cross-linking agent; 65 to 80 parts of a solvent; 0.2 to 2 parts of a vulcanizing agent; 0.3 to 1.5 parts of an organic cobalt adhesion promoter; and 2-33 parts of pigment and filler. According to the rubber adhesive disclosed by the embodiment of the invention, the chlorinated rubber, the anhydride modified phenolic resin and the cross-linking agent are compounded, the vulcanizing agent, the organic cobalt adhesion promoter, the pigment filler and the solvent are added, and the contents of all the components are adjusted, so that the mechanical properties such as tensile strength and tear strength are improved, and the rubber adhesive has relatively strong adhesive property; and the system does not contain lead oxide and other substances, so that the problem of high toxicity of the adhesive in the prior art can be improved.

A fluororubber pressure sensitive adhesive composition obtained by blending modified fluororubber having an unsaturated bond or an unsaturated bond and a functional group, and having a Mooney viscosity ML1+10 (121°C) of 10 to 80 with an acrylic pressure sensitive adhesive containing an acrylic copolymer with a glass transition temperature Tg of 20°C or lower. The acrylic pressure sensitive adhesive is used at a ratio of 10 to 400 parts by weight, based on 100 parts by weight of the modified fluororubber. The fluororubber pressure sensitive adhesive composition exhibit excellent adhesion and stickiness without impairing the heat resistance, chemical resistance, weather resistance, flame retardancy, and other properties inherent in fluororubber.

The invention discloses a high-strength flame-retardant CPVC (chlorinated polyvinyl chloride) solvent type adhesive which is prepared from the following raw materials in parts by weight: 15-25 parts of CPVC resin, 5-10 parts of chlorinated rubber, 0.5-1.0 part of vinyltriethoxysilane, 51-70 parts of a mixed solvent, 3-8 parts of a flame retardant, 1-3 parts of a stabilizer, 0-2 parts of a tackifier and 1-2 parts of a plasticizer. A preparation method of the high-strength flame-retardant CPVC solvent type adhesive comprises the following steps: adding the mixed solvent into a stirrer, adding the CPVC resin, the chlorinated rubber and the vinyltriethoxysilane, dissolving and stirring for 3 hours, then adding the stabilizer and the flame retardant, continuously stirring for 30 minutes, then adding the plasticizer and the tackifier, uniformly stirring, and filtering to obtain the product. The high-strength flame-retardant CPVC solvent type adhesive disclosed by the invention is relatively good in bonding strength, water pressure bursting strength and oxygen index, and wide in application.

The present invention relates to the field of C09J107 / 00, specifically a single-coat, highly thermally conductive rubber-to-metal adhesive and its preparation process. The raw materials for the preparation, calculated by weight, include at least: 5-25% film-forming agent, 5-15% functional rubber, 5-15% adhesion promoter, 1-10% carbon black, and the remainder solvent. By introducing a self-designed thermally conductive adhesion promoter and treating hollow nanospheres with a nitro-compound-modified coupling agent, the hollow nanospheres, upon addition to the adhesive, can cross-link with the active ingredients in both the adhesive and the rubber and rapidly transfer heat during the vulcanization process, ensuring coordinated vulcanization of the adhesive and rubber. Compared to conventional adhesives, the adhesive exhibits higher thermal conductivity, resolving the problem of thin adhesive adhesion when conventional adhesives are used to bond thick products.

To provide a flexible printed board that is less prone to peeling of an adhesive layer even when held in a high temperature environment for a long period of time, compared to a conventional flexible printed board.SOLUTION: A flexible printed board 100 has at least a substrate layer 110, an adhesive layer 120, a nickel-containing layer 130, and a conductor 140 in that order, the adhesive layer contains fluorine-containing rubber, the mass per unit area of nickel in the nickel-containing layer is 100 mg / m2 or more, and the substrate layer contains polyimide.SELECTED DRAWING: Figure 1

The present invention provides an adhesive composition having improved bonding properties, particularly for bonding tapes to roof structures such as roof membranes, and tapes made therefrom. The adhesive is chlorinated and contains an elastomer material. The adhesive is suitable for use on certain substrates such as thermoplastic polyolefins (TPO) without the need for a primer.

One embodiment of the present invention relates to a chloroprene latex composition and a method for producing an adhesive product, wherein the chloroprene latex composition contains a chloroprene latex (A) containing a chloroprene-based polymer satisfying requirement (a-1), and a tackifier (B) having a softening point of 85-155°C as measured by a ring-and-ball method. (a-1) The tetrahydrofuran insoluble fraction α [mass%] in 100 mass% of the chloroprene-based polymer and the melting enthalpy β [mJ / mg] of the chloroprene-based polymer as measured by differential scanning calorimetry (DSC) satisfy the following formula. Logβ ≥ −0.022 × α + 1.0

An aspect of the present invention relates to a bonded object or a method for producing the bonded object, the bonded object comprising substrates bonded to each other by an adhesive layer obtained from a fluororubber composition comprising at least one fluororubber selected from among fluoroelastomers (FKM) and perfluoroelastomers (FFKM) and having a Mooney viscosity (ML1+10), as measured at 121°C in accordance with ASTM D 1646, of 80-115.

To provide a fluororubber pressure-sensitive adhesive composition excellent in adhesion and tackiness without detriment to the heat resistance, chemical resistance, weatherability, flame retardancy, etc., inherent in fluororubber.SOLUTION: A fluororubber adhesive composition comprising a modified fluororubber containing unsaturated bonds or unsaturated bonds and functional groups and having a Mooney viscosity ML1 + 10 (121 °C) of 10 to 80, and an acrylic copolymer-containing acrylic adhesive having a glass-transition temperature Tg of 20 °C or lower. The acrylic adhesive is used at a ratio of 10 to 400 parts by weight with respect to 100 parts by weight of the modified fluororubber.SELECTED DRAWING: None

One-part (1K) and two-part (2K) cold bonding adhesive compositions for bonding vulcanized rubber compounds are described. The compositions can be used to bond vulcanized elastomers, such as chloroprene and buffed natural rubber, to themselves or to metal. The compositions can be free of hazardous chemicals often used in cold bonding adhesives, such as monomeric isocyanates and / or trichloroethylene or other chlorinated solvents. The adhesives also offer easy application and long pot life.

The invention relates to the technical field of adhesives, in particular to a high-reactivity adhesive for a heat-vulcanized rubber surface at a low temperature and a preparation method of the adhesive. The adhesive is prepared from the following raw materials in percentage by mass: 1-15% of a film-forming agent, 5-20% of a rubber base material, 3-15% of a modified latent curing agent, 5-15% of phenolic resin and the balance of a solvent. According to the invention, p-aminobenzene sulfonyl guanidine is preferably selected to modify p-dinitrosobenzene, active nitrogen atoms of p-dinitrosobenzene are captured at a depolymerization temperature of p-dinitrosobenzene, and existence of a polymerization state is avoided, so that the curing and bonding functions can be fully exerted under a low-temperature reaction condition, and low-temperature limit vulcanization is realized. Meanwhile, the thermosetting phenolic resin with high free phenol content is used in a matched manner, so that an interface penetration type cross-linking reaction is realized, the bonding strength of the adhesive is improved, and the bonding stability of a low-temperature reaction part in the center of a shock insulation support product is ensured.

The invention relates to the technical field of water-based adhesives, in particular to a modified rubber emulsion and a water-based adhesive composition, which are prepared from the following raw materials in percentage by mass: 10 to 70 percent of modified rubber solution, 0.01 to 5 percent of surfactant and the balance of water, a water-based adhesive composition prepared from the modified rubber emulsion effectively meets the application requirement for bonding between metal and an elastomer, and the product is environmentally friendly, has excellent stability, also has the performance of bonding a base material and the elastomer in a single coating manner, and has extremely high market application and popularization value.