Acrylated polyether

Polyether acrylates Polyether acrylates are produced by esterification of polyetherols with acrylic acid. They have a very low viscosity and do not require reactive thinners. Amino-modified polyether acrylates have a higher reactivity and low skin irritance, similar to polyester acrylates. 

A1 Polyester acrylate/eepoxy acrylate/polyether acrylate... 

ACRYLATED EPOXY ACRYLATED URETHANE ACRYLATED POLYETHER ACRYLATED POLYESTERS... 

TTie structures of an acrylated polyether and polyester are depicted as follows ... 

Acrylate resins, based on the conventional thermoplastic resins, into which two or more reactive acrylate or methacrylate groups have been introduced, are called prepolymers. The most commonly used prepolymers are acrylated epoxy resins, acrylated polyurethanes, acrylated polyesters and acrylated polyethers. 

Not inclusive see also Acrylic elastol rs, Phosphazenes, Cm OROSULFONATED polyethylene, Eethylene-acrylic elastot rs, Polyethers under the tide ElASTOT RS, SYNTTiETIC. 

For some applications, such as for repulpable type PSAs, it may be advantageous to incorporate high levels of acrylic acid because this makes the polymer more hydrophilic. At the same time, high levels of acid also improve the water-dispersibility of the adhesive, especially at higher pH where the acid groups are converted to the more water-soluble neutralized salt form. Since the high level of acid increases the of the resulting polymer, a non-tacky material results. To make the adhesive pressure sensitive, the polymer can be softened with water-dispersible or soluble plasticizers, such as polyethers [68]. 

The PSA formulator can also take advantage of plasticizers. For example, polyether-based plasticizers have both good low-temperature flexibility and good hydrophilicity. Using these properties, acrylic PSAs have been formulated with these types of plasticizers to obtain high adhesion to food packages stored under refrigerated conditions [102]. Similarly, polyether plasticized acrylics have been used to make repulpable PSAs [103]. 

Liquid organic rubbers with reactive functionality can be prepared by several methods. End-functional oligomers are preferred. Chains attached to the network at only one end do not contribute as much strength to the network as those attached at both ends [34], Urethane chemistry is a handy route to such molecules. A hydroxy-terminated oligomer (commonly a polyester or a polyether) can be reacted with excess diisocyanate, and then with a hydroxy methacrylate to form a reactive toughener [35]. The methacrylate ends undergo copolymerization with the rest of the acrylic monomers. The resulting adhesive is especially effective on poIy(vinyl chloride) shown in Scheme 2. 

Moisture Deteriorating effects of moisture are well known as reviewed early in this chapter (OTHER BEHAVIOR, Drying Plastic). Examples for high moisture applications include polyphenylene oxide, polysulfone, acrylic, butyrate, diallyl phthalate, glass-bonded mica, mineral-filled phenolic, chlorotrifluoroethylene, vinylidene, chlorinated polyether chloride, vinylidene fluoride, and fluorocarbon. Diallyl phthalate, polysulfone, and polyphenylene oxide have performed well with moisture/steam on one side and air on the other (a troublesome... 

Weathering Many plastics has short lives when exposed to outdoor conditions. The better materials include acrylic, chlorotri-fluorethylene, vinylidene fluoride, chlorinated polyether, polyester, alkyd, and black linear poly-ethylene. Black materials are best for outdoor service. Some of the styrene copolymers are suitable for certain outdoor uses (Chapter 2, WEATHERING/ ENVIRONMENT). 

Polyols and polyamines are the most important coreactants for isocyanates. As briefly outlined in Section 4.2.2, the two most common classes of urethane-grade polyols are the polyethers and polyesters. In this section their synthesis and structure are discussed. Other polyol types, such as acrylic resins and polycarbonates, are of more limited applicability and are not presented here. 

Non-ionic Alkylphenol ethoxylates, long chain alkanol ethoxylates, long chain alkylamine ethoxylates, sorbitan esters and ethoxylates, castor oil ethoxylates, EO/PO copolymers, acrylic copolymers, polysiloxane-polyether copolymers, fluorosilicones... 

Estapol, a blend of polyester/polyether resins NA, not available PBA, polybutyl acrylate PUV, polyurethane varnish PVAL, polyvinylalcohol SVF, silicone vacuum fluid fiber volume fraetion. 

EMA copolymer Acrylic Polyester fiber Polyamide copolymer with polyether/polyester Epoxy and PVC powders Nylon-6 Acrylic fibers Poromeric film Vinyl Vinyl PVC... 

Anderson et al. (1) prepared curable dental compositions consisting of the reaction products of amine-terminated polyethers, methacrylate-terminated polyethers, 2-hydroxyethyl(meth)-acrylate, and V-vinyl pyrrolidone. 

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