808results about "Monocarboxylic acid ester polymer adhesives" patented technology

A method for forming a heat sealable coating on a substrate, wherein the substrate is formed from at least one oriented polymer is shown. The method includes depositing an aqueous polymer dispersion on the substrate, wherein the aqueous polymer dispersion includes (A) at least one thermoplastic resin; (B) at least one dispersing agent; and (C) water; wherein the dispersion has a pH of less than 12, and drying the dispersion to form a first layer.

The invention relates to an aqueous binder which is compounded and modified by micro nano material. The modified aqueous binder of the invention adopts emulsion adhesive as matrix and micro-size and nano-size inorganic powder as modifier to prepare the compound and modified aqueous binder. The method of the invention can not only enhance the interface binding force of the aqueous binder, but also greatly improve the properties of water resistance, toughness and extensibility, leading comprehensive performance of the aqueous binder to be improved.

Non-tacky, base polymers are plasticized into pressure-sensitive adhesives and comprise: a) about 100 parts by weight of a base copolymer having a Tg greater than about 0° C., wherein the base copolymer is formed from and comprises: (1) about 50 to 70% by weight of a high Tg comonomer component, wherein the homopolymer formed from the high Tg comonomer component has a Tg of at least about 20° C.; (2) optionally, up to about 20% by weight based on the total weight of the base copolymer of an acidic comonomer; and (3) about 30 to 50% by weight of one or more low Tg (meth)acrylate comonomer, wherein the Tg homopolymer of the low Tg comonomer is less than about 20° C., and b) about 1 to about 100 parts based on the base copolymer of a nonreactive, non-volatile, non-acrylic-based plasticizing agent.

This invention relates to a adhesive and a dope used for catching formaldehyde, both takes formaldehyde collector as active ingredient. This adhesive is used for gluing outer layer or kerf section of panel, can efficiently absorb formaldehyde liberated by panel, and has no impact to adhesion strength of panel. This dope is used for washing indoor wall; to absorb formaldehyde in the indoor air; also be used for surface washing of panel, absorb formaldehyde gas, reduce releasing of formaldehyde. Comparing with existing technology, this invention has such merit: cheapness, efficiently, and can generate stable compound, no longer discharge formaldehyde gas, thus unable to generate other secondary pollutant.

The present invention relates to high solid content vinyl acetate-ethylene copolymer latex for binder and the synthetic method, including 55 to 75 portion of vinyl acetate, 24 to 45 portion of ethylene, 3 to 5 portion of N-methylol acrylamide, 2 to 4 portion of PVA1788 and PVA0588, 0.4 to 1.0 portion of the compound of nonionic emulsifying agent nonyl phenol polyoxyethylene alkyl ether and anion emulsifying agent alkyl sulphate with 2:1 mixture ratio, 0.2 to 1.0 portion of 35 percents oxydol with 1:1 mixture ratio, 0.05 to 0.4 portion of formol zinc sulphate, 0.1 to 0.5 portion of ferrous sulphate, 0.5 to 1.0 portion of regular dodeca-carbon thiol-alcohol, 0.05 to 0.35 portion of potassium phosphate, 0.1 to 0.5 portion of sodium bicarbonate and 45 to 55 portion of de-ionized water. With the adoption of latex polymerization, low-residual monomer VAE latex with solid content more than 65 percents is synthesized, which is used as binder to be applied in timber processing industry and packaging industry.

An adhesive binder comprising a phenol-formaldehyde resin, polyvinyl ester resin, and a protein is disclosed. The adhesive binder is useful for preparing wood composites.

The invention provides an aqueous binding agent which has washing resistance and is used for electrochemical aluminium hot stamping, and a preparation method thereof, belonging to a binding agent composition. The aqueous binding agent comprises 40-80 parts by weight of acrylic resin emulsion (with the solid content of 40-55%), 20-40 parts by weight of acrylic resin powder and 5-20 parts by weight of ethylene-vinyl acetate copolymer (EVA) emulsion (with the solid content of 40-60%). The binding agent does not contain organic volatile component, is harmless for the human body, is an environment-friendly electrochemical aluminium hot stamping binding agent, and is especially suitable for fabric which is needed to be printed and frequently washed.

The invention discloses a multipurpose aqueous adhesive, which comprises the following parts: 10-35% thermoplastic rubber or emulsion, 0. 5-35% solvent, 28-45% emulsion, 20-80% viscosifying resin or its emulsion, 0. 5-5% functional adjuvant and 1-20% water. The making method comprises the following steps: putting the solvent into autoclave; stirring at middle speed and adding thermoplastic rubber and its modifying product until dissolving completely; or putting into copolymerized rubber emulsion directly; stirring to add the viscosifying resin or the viscosifying resin in the invention; blending evenly; adding emulsion; fetching the sample to test the viscosity; adding fitful quantity of water and corresponding functional adjuvant according to the purpose and viscosity; dispersing at high speed until even condition; cooling; filtering; packing; obtaining the product for shoe-making, hand pocket and decorative aspect with low cost.

The invention relates to water-base joint grouting glue for a normal temperature road, namely an environment-friendly joint grouting and joint sealing material having high viscosity, high cementing power and high adhesive property, which is formed by special processes of copolymerizing water, a water-base adhesive, bitumen and a dispersing agent, then modifying a macromolecular water-soluble resinand a rubber latex, and adding the auxiliary agents of a stabilizing agent, a thickening material and the like, and can be used for treating and sealing various types of cracks of bitumen and cementroad surfaces and joint seams of cement road surfaces and bridge surfaces. The joint grouting glue is in a gel state at normal temperature, can be stirred but cannot flow, thus the joint grouting gluecan enter joints directly without slotting and cannot infiltrate downwards so as to play a role in sealing the joints; and simultaneously the joint grouting glue is soluble in water; therefore, the joint grouting glue can be mixed with water to prepare strong-permeability joint grouting materials with any viscosities, and can be effectively poured into deep parts of the cracks of road surfaces without slotting. The joint grouting glue combines the advantages of slotting and non-slotting repairing methods, and simultaneously avoids the disadvantages of the two methods.

The present invention provides an improved method of producing a stable acid denatured soy/urea adhesive having improved wet and dry strengths, with more efficient production and lower production costs. The method comprises combining urea with soy flour that has been acid treated until denatured and substantially free from urease activity. The soy flour is preferably lowered to a pH of 2.0 to 4.0 for at least 1 minute. Optionally, the method may also include adding a crosslinking agent, diluent or both to the soy flour/urea adhesive and/or adding an emulsified or dispersed polymer. Adhesives and dispersions prepared according to the methods of this invention offer increased stability and strength properties.

The invention discloses a modified white latex which comprises the following components in parts by weight: 10 parts of vinyl acetate, 0.7 part of acrylic acid, and 1.5 pars of butyl acrylate; the amount of an initiator is 0.3% of the sum of the amounts of acrylic acid and butyl acrylate, and the amount of an emulsifier is 2%-3% of the sum of the amounts of acrylic acid and butyl acrylate. The white latex after modification has high viscosity, can form a film at room temperature, has the advantages of relatively good bonding strength, relatively good water resistance and the like, and has relatively great market popularization value.

The invention discloses a single-component polyvinylacetate binding agent and a preparation method thereof. The single-component polyvinylacetate binding agent comprises the following raw materials in percentage by weight: 48 to 52 percent of deionized water, 3 to 5 percent of polyvinyl alcohol, 25 to 40 percent of polyvinylacetate, 5 to 10 percent of butyl acrylate, 2 to 3 percent of hydroxyethyl acrylate, 1 to 3 percent of methyl acrylic acid, 10 to 15 percent of organic silicon, 2 to 3 percent of composite emulsifier, 0.1 to 0.9 percent of initiator, 0.1 to 0.3 percent of pH regulator and 5 to 10 percent of plasticizer. The binding agent of the invention is modified waterproof and high temperature-resistant white latex prepared by acrylic ester and organic silicon modification with polyvinyl alcohol as protective colloid and polyvinylacetate as a base stock. All technical indexes of the binding agent are beyond standards of chemical industry, the waterproof performance and high temperature resistance of the binding agent are high, the production process of the binding agent is simple, the cost of the binding agent is low, and thus, the binding agent is a safe and environmentally-friendly product.

The invention relates to a fireproof polyvinyl acetate emulsion and a preparation method thereof. The grain diameter of the main fireproof composition of the fireproof type polyvinyl acetate emulsion, namely the gain diameter of ammonium polyphosphate, is small. Meanwhile, inorganic padding has stronger hydrogen bonding force to polyvinyl acetate or polyvinyl acetate copolymer, and the grains of the inorganic padding are small, which can avoid a series of problems caused by adopting an additional fireproofing agent of the prior art. The fireproof polyvinyl acetate emulsion disclosed by the invention has favorable bond strength, favorable film-forming performance, etc., and is very valuable to be used in the aspects of an indoor and outdoor fireproof coating, a weaving cloth fireproof finishing agent, a fireproof binding agent, and the like. Meanwhile, no harmful substances are produced in the process of production and use of the fireproof polyvinyl acetate emulsion, and the productive process of the fireproof polyvinyl acetate emulsion is simple, and is easy to control.

The invention provides an integrated material wood-splicing adhesive, which is characterized in that the integrated material wood-splicing adhesive is prepared by the following components by weight portions: 100 weight portions of main agent and 13-17 weight portions of cross linking agent modified polyisocyanate, wherein the main agent is prepared by the following raw materials by weight: 3-5% of polyvinyl alcohol, 21.4-38.92% of vinyl acetate, 1-3% of crylic acid, 5-10% of butyl acrylate, 1-3% of methacrylic acid, 0.9-1.1% of 2-hydroxyethyl acrylate, 1-2% of emulsifier OP-10, 1-2% of sodium dodecyl sulfate, 0.08-0.2% of ammonium persulfate, 0.1-0.3% of pH regulator and 48-52% of deionized water. The integrated material wood-splicing adhesive has the advantages of high adhesion strength, good water resistance, and no organic solvent and formaldehyde.

The invention provides an electrochemical aluminum hot stamping adhesive agent, belonging to chemical compositions. The electrochemical aluminum hot stamping adhesive agent comprises (a) 0.3-6 parts by weight of thermoplastic acrylic resin, (b) 15-40 parts by weight of elastic vinyl resin; (c) 5-10 parts by weight of adhesion promoter; and (d) 35-70 parts by weight of solvent. The invention further provides a preparation method of the electrochemical aluminum hot stamping adhesive agent resistant to water washing. The adhesive agent prepared by the invention is particularly suitable for the electrochemical hot stamping of fabrics, the fabrics provided with patterns by hot stamping are extremely resistant to the water washing, the patterns can be washed for 100 min with water at 60 DEG C without falling off, and the adhesive agent has the advantages of simple preparation process, easily obtained raw materials, low cost, low hot stamping temperature and the like.

A composite article comprises a plurality of lignocellulosic pieces and an adhesive system disposed on the plurality of lignocellulosic pieces for bonding the plurality of lignocellulosic pieces. The adhesive system comprises a binder component and a tackifier component. The tackifier component comprises a cationic polymer. The tackifier component is useful for maintaining orientation of the plurality of lignocellulosic pieces during manufacture of the composite article. The composite article may be various engineered lignocellulosic composites, such as particleboard.

The invention belongs to an environment-friendly type laminating glue, and particularly relates to a high-strength double-component laminating glue and a preparation method of the high-strength double-component laminating glue. The high-strength double-component laminating glue comprises a host agent and a curing agent; the host agent comprises 40-60% of vinyl acetate emulsion, 2-4% of polyvinyl alcohol, 1-5% of functional monomer, 0-1.5% of plasticizer, 15-25% of inorganic filler, 0.05-0.2% of dispersing agent, 0.05-0.2% of de-foaming agent, 0.05-0.2% of fungicide, and 5-30% of de-ionized water; the curing agent is poly-methylene poly-phenyl poly-isocyanates; the preparation method is as follows: adding the vinyl acetate emulsion, the functional monomer, the dispersing agent and the de-foaming agent in a high-speed dispersing kettle in sequence, slowly adding the inorganic filler, stirring with high speed, thereby obtaining flowable pulp-shaped mixture, then adding polyvinyl alcohol aqueous solution, a plasticizer and fungicide, thereby obtaining the high-strength double-component laminating glue. The high-strength double-component laminating glue excludes organic solvent, so that the glue belongs to environment-friendly type glue product, the product spliced wood is high in strength and excellent in waterproofing property.

The embodiment of the invention provides a dry-type compound aqueous paper/plastic laminating emulsion adhesive and a preparation method thereof; the laminating emulsion adhesive is composited by the following raw materials by weight percentage: 5-20 percent of vinyl acetate monomer- ethylene copolymer, 25-40 percent of acrylic monomer, emulsifying agents accounting for 1-3 percent of total weight of the acrylic monomer, polymerization initiator accounting for 0.4-0.8 percent of total weight of the acrylic monomer, post-elimination initiator accounting for 0.2-0.6 percent of total weight of the acrylic monomer, 1-3 percent of wetting agents, 1-3 percent of defoaming agents, 0.1-1 percent of preservative, and the remaining is deionized water. By utilizing the formula, acrylic monomer pre-emulsification, VAE emulsion treatment, VAE/PA compound emulsion preparation and post-treatment steps are carried out to obtain the compound emulsion which is used as the dry-type compound aqueous paper/plastic laminating emulsion adhesive. The laminating emulsion adhesive has economical efficiency of VAE emulsion and good bonding performance of polyacrylic emulsion, and the performance of the laminating emulsion adhesive is superior to the VAE emulsion and is equivalent to the polyacrylic emulsion; the peel strength of the laminating emulsion adhesive has no obvious recession and can be kept more than one year, so as to avoid delaminating risk of the laminating products.

The present invention provides a hot melt acrylic pressure sensitive adhesive (PSA) comprising an acrylic polymer having units derived from one or more C₁-C₂₀ alkyl esters of acrylic or methacrylic acid and units derived from one or more vinyl esters corresponding to the formula (I), wherein R₁, R₂ and R₃ each independently represent an alkyl group and the total number of carbon atoms in the vinyl ester is from 7 to 18. The PSA is particularly suitable for sticking objects to a low surface energy substrate.

The invention discloses a biaxially oriented polyester matte precoat and a preparation method thereof. The method includes: coating the first surface of light biaxially oriented polyester film with matte varnish so as to form a matte coating, wherein the light biaxially oriented polyester film and the matte coating form the base material of the biaxially oriented polyester matte precoat; coating the second surface of the light biaxially oriented polyester film with an aqueous polyethyleneimine solution so as to form a middle layer; and compounding at least one of ethylene-vinyl acetate, low-density polyethylene, ethylene-ethyl acrylate and ethylene-methyl acrylate on the middle layer through an extrusion compounding process so as to form a hot melt adhesive layer. The biaxially oriented polyester matte precoat obtained by utilization of the method has characteristics of high color saturation, appropriate matte degree, high tensile strength, high stiffness and high evenness, and improves the exquisite degree of printing products.

The invention discloses a modified starch adhesive and a method for preparing the same. The modified starch adhesive comprises the following components by weight: 30-50 parts of corn starch, 80-120 parts of deionized water, 25-40 parts of sodium hypochlorite solution, 0.5-2 parts of epichlorohydrin, 30-70 parts of polyvinyl acetate emulsion, 10-30 parts of epoxy resin, 2-7 parts of tertiary amine catalyst, 5-15 parts of filler, 0.2-1 part of surfactant, and 0.2-0.6 part of preservative, wherein the sodium hypochlorite solution serves as the oxidant, the polyvinyl acetate emulsion serves as the high-cohesive-energy reinforcement component, and the epoxy resin servers as the water-tolerant modified component. The method for preparing the modified starch adhesive comprises the following steps: mixing the oxidized starch emulsion prepared in advance, the polyvinyl acetate emulsion and the epoxy resin according to proportion uniformly, adding the catalyst, the filler and the preservative, and stirring quickly and uniformly. The modified starch adhesive disclosed by the invention has the advantages of high shear strength, high water-tolerant shear strength, moderate viscosity, good liquidity, moderate primary drying time, low cost and excellent integrated performance.

This invention provides a heat conducting gel and method for making same. The heat conducting gel comprises a base body and heat conducting filler homogenously dispersed inside the base body, wherein the said heat conducting filler takes up 50-95wt% of the whole heat conducting gel. The procedures of producing the heat conducting gel comprise: provide the base body and the heat conducting filler at the weight ratio of 1:1-1:19, and right amount of solvent; mix the above base body, heat conducting filler and solvent in the agitator to form the mixing solution; filtrate and dry the above mixing solution to obtain the heat conducting gel. The heat conducting gel of this invention is characterized that the heat conducting filler takes up a high weight percentage, and is homogenously dispersed inside the base body, which can form large physical contact between the heat conducting interface, avoid producing too much heat resistance and greatly reduce the heat resistance between the heat conducting interface.

The present invention relates to adhesive, and is especially one kind of environment friendly heat resistant adhesive for energy saving lamp holder. The adhesive is prepared with water as dispersing medium, styrene-acrylic emulsion, polyvinyl acetate-ethylene emulsion, polyvinyl acetate, fillers and additive. The adhesive has the features of dispersing medium of water, facile materials, simple preparation process, easy usage, low cost, capacity of being cured through heating or at room temperature and no harmful matter release.

The invention relates to low-viscosity vinyl acetate-ethylene (VAE) copolymer emulsion, which is characterized by being prepared from a monomer, an initiation system and an emulsification system, wherein the monomer is vinyl acetate, ethylene and acrylamide monomers; the initiation system comprises hydrogen peroxide, persulfate and a reducing agent; and the emulsification system comprises a composite emulsifier and a protective colloid. The low-viscosity VAE emulsion is high in flexibility, good in positioning effect and high in alkali-resisting retention rate, and after the low-viscosity VAE emulsion is soaked in 5 percent NaOH solution for 28 days, about 80 percent of strength of the low-viscosity VAE emulsion is reserved; and the low-viscosity VAE emulsion is easy to construct, low in formaldehyde content and high in shear stability, does not have pressure-sensitive performance, can be applied to the bonding of non-woven fabrics and fiberglass gridding cloth, and is particularly suitable to be used as adhesives to be applied to the field of the solidification and sizing of the fiberglass gridding cloth.

The invention provides an anti-counterfeiting label with an ultraviolet-cured glue film. The anti-counterfeiting label comprises: (1) a surface material layer with an anti-counterfeiting function, (2) an ultraviolet-cured glue film which is attached to the surface material layer, and (3) a release material layer which is attached to the glue film and through which ultraviolet light can pass. The label cannot be peeled or removed completely after use, so that the possibility of repeated use is avoided, and an anti-counterfeit characteristic is realized.

The invention relates to a high viscosity polyvinyl acetate emulsion. The high viscosity polyvinyl acetate emulsion is characterized in that: the emulsion is prepared from the following raw materials, wherein the raw materials comprise a vinyl acetate monomer, an emulsifying agent and protective colloid; the emulsifying agent is the non-ionic emulsifying agent, and the protective colloid is polyvinyl alcohol. According to the present invention, the viscosity of the high viscosity polyvinyl acetate emulsion exceeds 200000 mpa.s; after the high viscosity polyvinyl acetate emulsion is uniformly mixed with the cellulose and the filler, the resulting mixture is coated on the woodworking decorative sheet material, the coated material has advantages of good initial adhesion, no foaming, no cracking, high strength and the like; the high viscosity polyvinyl acetate emulsion of the present invention provides significant application effects for photo frame and other decorative industries with high emulsion viscosity requirements.

The invention discloses a single-component waterborne polyurethane automotive trim adhesive which consists of the following components in parts by weight: 10-50 parts of a polyurethane emulsion of medium activation temperature, 20-40 parts of a polyurethane emulsion with low activation temperature, 30-70 parts of a vinyl acetate-ethylene emulsion, 5-20 parts of an aqueous sealing type polyisocyanate cross-linking agent, 0.1-0.3 part of a pH adjusting agent, 0.1-1.0 part of a thickening agent, 0.05-0.50 part of an aqueous defoaming agent, 0.5-8 parts of a tackifying emulsion, 1-10 parts of an adhesion promoter and 0.05-0.30 part of a toner. The single-component waterborne polyurethane automotive trim adhesive can be naturally dried in air at room temperature without a drying tunnel or adhesive spraying, can be used for adhering roofs and surface materials within two weeks, has relatively long opening time and wide market prospects and is worthy of wide popularization.

The invention discloses an environment-friendly aqueous sealant for a container, comprising the following components in parts by weight: 30-60 parts of polymer emulsion, 0.5-1 part of dispersing agent, 5-10 parts of plasticizer, 2-5 parts of adhesive force accelerating agent, 3-5 parts of thixotropic agent, 35-55 parts of filler and 0.5-3 parts of antifreeze agent. The invention has good physical mechanical property and can completely realize the product performance of the present general container sealant. After solidified, the environment-friendly aqueous sealant has strong adhesive force, good flexibility and excellent sealing performance, can keep long sealing on joints of the container, also has extra low VOC (Volatile Organic Compound) content, and is green and environment-friendly.

The invention provides an anti-crack bond for an electricity-saving lamp, and the preparation method thereof, belonging to the technical field of aqua bond. The components of the anti-crack bond comprise latex, filler, anti-crack agent, aging inhibitor, disinfectant, water, etc. The invention has the advantages that the anti-crack bond for the electricity-saving lamp can effectively solve the intractable problems such as looseness, cracking, color change at a high emperature, gum leakage, degumming, cold check, and the like, which happen to the prior electricity-saving lamps during the use, and the anti-crack bond meets the requirements on environment protection, has low demands on the package and reasonable cost, fully satisfies the future development requirement of the anti-crack bonds for the electricity-saving lamps, and also provides people with more environment-friendly life.

The present invention relates to a method for producing nanocomposite dispersions comprising composite particles of inorganic nanoparticles and organic polymers in a continuous phase, especially in a dispersion medium, as well as to the nanocomposite dispersions thus obtained and to the use thereof.