Acrylic adhesive

Acrylic acid polymers Acrylic adhesives Acrylic anhydride Acrylic copolymer Acrylic-cotton blends Acrylic elastomers... 

Among the different pressure sensitive adhesives, acrylates are unique because they are one of the few materials that can be synthesized to be inherently tacky. Indeed, polyvinylethers, some amorphous polyolefins, and some ethylene-vinyl acetate copolymers are the only other polymers that share this unique property. Because of the access to a wide range of commercial monomers, their relatively low cost, and their ease of polymerization, acrylates have become the dominant single component pressure sensitive adhesive materials used in the industry. Other PSAs, such as those based on natural rubber or synthetic block copolymers with rubbery midblock require compounding of the elastomer with low molecular weight additives such as tackifiers, oils, and/or plasticizers. The absence of these low molecular weight additives can have some desirable advantages, such as ... 

MIL-A-8576 MIL-A-9117 MIL-A-12850 MIL-C-14064 MIL-C-15705 MIL-C-18255 MIL-C-18969 MIL-C-23092 MIL-C-27315 MIL-C-27725 MIL-C-5539 MIL-C-7438 Adhesive, Acrylic Monomer Base Synthetic Elastomeric Sealant Natural Liquid Rubber Cement Grinding Disk Cement Caulking Compound Caulking Compound with Synthetic Rubber Base Caulking Compound—Watertight Exterior Hull Seams of Vessels Cement, Natural Rubber Coating Systems, Elastomeric Coating, Corrosion, Preventative, Air Fuel Tanks Natural Rubber Cement Core Material, Aluminum, for Sandwich Construction... 

CombiPatch is a three- or four-day patch that delivers both estradiol and norethin-drone acetate. CombiPatch is available in two sizes a 9-cm2 patch that delivers 0.05 mg of estradiol per day and 0.14 mg of norethindrone acetate per day and a 16-cm2 patch that delivers 0.05 mg of estradiol per day and 0.25 mg of norethindrone acetate per day. Estradiol is a lipophilic compound with a molecular weight of 272. The molecular weight of norethindrone acetate is 340. The design of the patch is considered an adhesive-matrix-type patch that consists of three layers. The backing is comprised of polyolefin and the adhesive layer contains a silicone adhesive, acrylate adhesive, estradiol, norethindrone acetate, oleic acid, and oleyl alcohol. 

Adhesives. Acrylic emulsion and solution polymers form the basis of a variety of adhesive types. The principal use is in pressure-sensitive adhesives, where a film of a very7 low T (<—20° C) acrylic polymer or copolymer is used on the adherent side of tapes, decals, and labels. Acrylics provide a good balance of tack and bond strength with exceptional color stability and resistance to aging (201,202). Acrylics also find use in numerous types of construction adhesive formulations and as film-to-film laminating adhesives (qv). 

Acrylic Adhesives. Acrylic structural adhesives can be classified into three major types the surface-activated acrylics (anaerobics), the surface-activated second-generation acrylics, and the cyanoacrylates. 

Skin sensitization or chemical irritation caused by impurities and residual chemicals in adhesives Acryl amide, vinyl acetate, and styrene, which are common comonomers of PSA, are known to be probable human carcinogens. Dichloromethane and chloroform, which are good solvents for many PSAs, are also probable human carcinogens. Almost all organic liquid monomers and solvents are skin irritants. Therefore the level of residual solvent and monomer in PSAs and in the final TDS should be controlled to the lowest level. In the case of biological polymers, it is known that impurities in natural rubber cause skin sensitization. " ... 

Rubber Small Low Tg with low crystallinity SIS adhesive Acrylic adhesive... 

Polystyrene Although polystyrene is usually bonded by solvent cementing, it can be bonded with vinyl acetate/vinyl chloride solution adhesives, acrylics, polyurethanes, unsaturated polyesters, epoxies, urea-formaldehyde, rubber-base adhesives, polyamide (Versamid-base), polymethylmethacrylate, and cyanoacrylates. The adhesives should be medium-to-heavy viscosity and room-temperature and contact-pressure curing. An excellent source is a Monsanto Company technical information bulletin which recommends particular commercial adhesives for bonding polystyrene to a number of different surfaces. Adhesives are recommended in the fast-, medium-, and slow-setting ranges (10). 

Dental technicians Soaps and detergents, soldering fluxes, adhesives, acrylics, solvents, mercury... 

Some commonly used graft monomers are acrylates, such as methacrylic acid (to enhance adhesion), acrylic esters and hydroxy functional acrylates (that can couple with polar materials, as wood). Maleic anhydride and n-vinyl pyrrolidone are also used, but with care taken to avoid potential volatilization during processing. The former is used as an adhesion promoter, the latter to enhance bio-compatibility. Specific properties depend both on the backbone or base material that is being grafted and on the graft monomer (Fig. 1). 

Lap shear tests are close to peel tests however, this method is more quantitative in the base. Two sheets are bonded to each other by toughened adhesives (acrylic) in the test configuration and tensile tester applies load at a rate of usually 1 mm/min [96]. The lap shear specimen represents the most utilized geometry for studies of adhesive bonding because specimens as single- or double-lap shears (Fig. 8.13a, b) are easy for the measmement [97]. 

Uses Plasticizer for PVAc adhesives, acrylic lafex caulk formulafions, latex coatings, plastisols, and dry-blended vinyl formulations food pkg. adhesives, paper/paperboard Features Monomeric... 

Chem. Descrip. Hydrophobe modified urethane ethoxylate Uses Rheology control agent, associative thickener, flow control agent for water-based architectural and industrial coatings, adhesives, acrylic and epoxy coatings, printing inks, latex food pkg. adhesives Features Improves applic. props. 

Uses Tackifier for water-based adhesives and sealants based on acrylic, SIB, neoprene, VAE, or PVAc, esp. for pressure-sensitive adhesives, acrylic latexes modifier for EVA Features Solv.-ffee... 

Uses Preservative for emulsion coatings, stains, caulks, pigment slurries, adhesives, acrylic stucco systems. Joint cements, asphalt emulsions, wax emulsions, and inks... 

Uses Monomer for polyester resins (surface coatings) intermediate silane intemrediate crosslinker, polymer modifier for high impact plastics, adhesives, acrylic elastomers, optical polymers Manuf/Distrib. Aldrich Atofina CPS Ciba Spec. ChemsTWater Treatment Eastech Fluka Mitsubishi Gas Monomer-Polymer Dajac Labs Nippon Nyukazai Polysciences Rhodia HPCII Richman Rohm Tech Rohm Am. San Esters Trade Names SR 201... 

Uses Flame-retardant plasticizer for NBR elastomers, PVC (sheeting, coatings for apparel, upholstery, wall coverings, wire insulation, plastisols, adhesives), PVAc adhesives, acrylics., finished film or coated fabric applies., vinyl plastisols, ethyl cellulose, phenolics, PP, PS, NC, SBR and butyl rubbers, engineering resins, unsat. polyesters, alloys antiwear agent EP agent... 

For contact adhesives, acrylic latexes compare favorably to Neoprene A latex as well as to the solvent-based Neoprene. As expected, the latexes dry slower than the solvent-based Neoprene however, the drying time can be shortened through formulation. In terms of lap shear adhesion, acrylic latexes are better than Neoprene A latex. In addition, acrylic latexes offer comparable performance, freeze-thaw stability, nonflammability, ease of handling, and ease of cleanup. 

Polystyrene adhesives Acrylic resin adhesives Acrylic esters... 

Structural adhesives are normally categorized or subdivided into subclasses based on the resin chemistries used in their formulation, which can be in the form of solids, liquids, pastes or films. The most important categories of structural adhesives are the thermoset cured adhesives based on phenolic, epoxy and polyurethane or acrylic resins and include phenolic adhesives. Epoxide adhesives, Toughened epoxide adhesives, Polyurethane adhesives, Acrylic adhesives and Toughened acrylic adhesives. Several of the categories can be further subdivided into both one- and two-component adhesives. The one-component structural adhesives, which can be liquids, pastes or solids (films), usually require the inclusion of added energy for activation or to effect cure in the... 

A broad range of monomers with relatively low water solubility have been polymerised by conventional emulsion polymerisation. Acrylics, methacrylics, styrene and vinyl acetate are the most common monomers used in preparing latexes for paints, textile binders, and adhesives. Acrylic, polyester, epoxy and urethane dispersions are used in industrial coatings, where higher strength is required. Butadiene is often copolymerised with styrene in producing synthetic rubber for tyre manufacture. 

Uses modifier and adhesion promotor for film-forming natural and synthetic resins in vinyl lacquers, nitrocellulose compositions (nail lacquers), polyvinyl alcohol adhesives, acrylics. TOSYLAMIDE/FORMALDEHYDE RESIN... 

Anaerobic and structural acrylic adhesives (acrylics) are closely related members of the large acrylic adhesive family. They are reactive systems which cure by redox-initiated free radical polymerization. It is difficult to make a clear distinction between the two classes of adhesives. Many aspects of the chemistry, compositions, and terminology overlap. 

Adh6SiVGS. Acrylic emnlsion polymers are nsed in a wide variety of adhesives. Pressure-sensitive Adhesives, which typically have Tg values less than 20° C, are the main type of acrylic adhesive. Acrylic polymers and copolymers find use as PSAs in tapes, decals, and labels. Along with their aforementioned superior chemical resistance properties, acrylics possess an excellent balance of tack, peel, and shear properties which is crucial in the adhesives market (218,219). Other types of adhesives that employ acrylics include construction formulations and film-to-film laminates. 

We will try to place each Chemical type chapter near to the chapter dealing with the Industry using these types of adhesives and sealants, so that each volume will focus on one main field for instance, in Volume 3 that will be devoted to Construction, we will study the adhesives for construction, civil engineering, the silicone sealants, the woodworking and furniture adhesives, acrylic adhesives and sealants. Those working in the construction industry can then get fairly complete information from that volume. However, construction... 

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