Acrylic acid Diisocyanates

II. B polyethylene glycol, ethylene oxide, polystyrene, diisocyanates (urethanes), polyvinylchloride, chloroprene, THF, diglycolide, dilac-tide, <5-valerolactone, substituted e-caprolactones, 4-vinyl anisole, styrene, methyl methacrylate, and vinyl acetate. In addition to these species, many copolymers have been prepared from oligomers of PCL. In particular, a variety of polyester-urethanes have been synthesized from hydroxy-terminated PCL, some of which have achieved commercial status (9). Graft copolymers with acrylic acid, acrylonitrile, and styrene have been prepared using PCL as the backbone polymer (60). 

ABA ABS ABS-PC ABS-PVC ACM ACS AES AMMA AN APET APP ASA BR BS CA CAB CAP CN CP CPE CPET CPP CPVC CR CTA DAM DAP DMT ECTFE EEA EMA EMAA EMAC EMPP EnBA EP EPM ESI EVA(C) EVOH FEP HDI HDPE HIPS HMDI IPI LDPE LLDPE MBS Acrylonitrile-butadiene-acrylate Acrylonitrile-butadiene-styrene copolymer Acrylonitrile-butadiene-styrene-polycarbonate alloy Acrylonitrile-butadiene-styrene-poly(vinyl chloride) alloy Acrylic acid ester rubber Acrylonitrile-chlorinated pe-styrene Acrylonitrile-ethylene-propylene-styrene Acrylonitrile-methyl methacrylate Acrylonitrile Amorphous polyethylene terephthalate Atactic polypropylene Acrylic-styrene-acrylonitrile Butadiene rubber Butadiene styrene rubber Cellulose acetate Cellulose acetate-butyrate Cellulose acetate-propionate Cellulose nitrate Cellulose propionate Chlorinated polyethylene Crystalline polyethylene terephthalate Cast polypropylene Chlorinated polyvinyl chloride Chloroprene rubber Cellulose triacetate Diallyl maleate Diallyl phthalate Terephthalic acid, dimethyl ester Ethylene-chlorotrifluoroethylene copolymer Ethylene-ethyl acrylate Ethylene-methyl acrylate Ethylene methacrylic acid Ethylene-methyl acrylate copolymer Elastomer modified polypropylene Ethylene normal butyl acrylate Epoxy resin, also ethylene-propylene Ethylene-propylene rubber Ethylene-styrene copolymers Polyethylene-vinyl acetate Polyethylene-vinyl alcohol copolymers Fluorinated ethylene-propylene copolymers Hexamethylene diisocyanate High-density polyethylene High-impact polystyrene Diisocyanato dicyclohexylmethane Isophorone diisocyanate Low-density polyethylene Linear low-density polyethylene Methacrylate-butadiene-styrene... 

The reactive oligomer can be any low-molar-mass polymer containing at least a couple of double bonds. It can be based on a polyester, polyether, or polyurethane backbone. One mole of a, oo-OH-terminated polyester or polyether is prereacted with two moles of acrylic acid to obtain an a, oo-diacrylate oligomer. For polyurethanes, 1 mole of a, m-diisocyanate oligomer is prereacted with 2 moles of hydroxyethylacrylate (Sec. 2.2.3c). 

PVC can be blended with numerous other polymers to give it better processability and impact resistance. For the manufacture of food contact materials the following polymerizates and/or polymer mixtures from polymers manufactured from the above mentioned starting materials can be used Chlorinated polyolefins blends of styrene and graft copolymers and mixtures of polystyrene with polymerisate blends butadiene-acrylonitrile-copolymer blends (hard rubber) blends of ethylene and propylene, butylene, vinyl ester, and unsaturated aliphatic acids as well as salts and esters plasticizerfrec blends of methacrylic acid esters and acrylic acid esters with monofunctional saturated alcohols (Ci-C18) as well as blends of the esters of methacrylic acid butadiene and styrene as well as polymer blends of acrylic acid butyl ester and vinylpyrrolidone polyurethane manufactured from 1,6-hexamethylene diisocyanate, 1.4-butandiol and aliphatic polyesters from adipic acid and glycols. 

An acrylic oligomer is a higher molecular weight functional acry-lated molecule which may be, for example, polyesters of acrylic acid and methacrylic acid. Other examples of acrylic oligomers are the classes of urethane acrylates and urethane methacrylates. Urethane acrylates are manufactured from aliphatic or aromatic or cycloaliphatic diisocyanates or polyisocyanates and hydroxyl-containing acrylic acid esters. 

Unsaturated polyester resins (UPER) are largely used as components in polymer composites 26, 27) Generally, they are obtained by reaction of an unsaturated polyester (UPE) with a vinyl monomer. In our experiments, we have cured the UPE represented in Figure 3 wifti styrene (STY), which is the monomer mostly used for this purpose, or hydroxyethyl acrylate (HEA) and/or a diblocked diisocyanate (i.e., acrylic acid 2-[6-(2-acryloyloxy-ethoxycarbonylamino)-hexylcarbamoyloxy]-ethyl ester, UA). The reaction is highly exothermic, thus allowing for a rapid FP. 

The best-known vinyl ester is made by reacting the diglycidyl ether of bisphenol-A (DGEBA see Section 16.4.2) with a monocarboxylic unsaturated acid such as methacrylic or acrylic acid see Scheme 16.24. This addition reaction occurs at a temperature of 120-140°C. The vinyl ester urethanes, on the other hand, are synthesized from a low molecular weight (unsaturated) polyester diol, mostly based on bisphenol-A, a diisocyanate, and a hydroxyalkyl (meth)acrylate (see also Schemes 16.30 and 16.31, Section 16.8.3.3). As for standard UP resins, the most commonly used reactive solvent is styrene. Both types of products have only a few ester linkages (which are the points of greatest vulnerability to chemical attack) in the mole-... 

For most applications acrylic copolymers must be cross-linked. This can be performed by chemical reactions of the functional groups of the comonomers (amine with acid, epoxy with acid, diisocyanate with acid or hydroxyl, metal chelate with acid [234]) or by radicals generated by thermal decomposition of peroxides or by UV or electron beam (EB) radiation [235]. 

When the less hindered 2,4-tolylene diisocyanate is reacted with a phospholene oxide catalyst linear oligomeric carbodiimides are obtained which have been reacted with a variety of nucleophiles to give poly(ureas), poly(acyl ureas), poly(formamidines) and poly-(guanidines) by addition across the N=C=N group. Also, reaction of the oligomeric carbodiimides with acrylic or methacrylic acid affords linear polymers, which can be further polymerized by free-radical type processes. Also, reaction of the carbodiimide oligomers obtained from 2,4-TDI with adipic acid in DMF produces a polyureid. ... 

Secondly, the reaction was inhibited by both strong and weak acids. Strong acids, such as HBF4, completely stopped the reaction. Weaker acids, snch as acetic acid, had a much less pronounced and concentration-dependent effect. It has been snggested that the concept of the ionic mechanism mnst be viewed with some degree of caution, since the reaction proceeded faster in non-polar solvents, snch as cyclohexane, compared with a dipolar aprotic solvent, snch as dimethylformamide, whereas one wonld expect that the polarity of the solvent wonld significantly stabilize the ionic catalyst intermediates. However, Urban et al. have demonstrated that an ionic mechanism is likely operative in the reaction of hexamethylene diisocyanate with an acrylic polyol, nsing DBTDL as catalyst. 

The second type of composition is exemplified by a wide variety of acrylate- or methacrylate-ester derivatives of conventional ink vehicles combined with a photoinitiator 1. The reaction product of tung oil fatty acids, glycidyl methacrylate, -benzoquinone, and 2-methyl-imidazole mixed with tung oil and treated with tolylene diisocyanate, combined with benzoin methyl ether (26) 2. Glycerol-linseed oil-isophthalic acid alkyd reacted with isocyanate-containing prepolymer (formed by reaction of tolylene diisocyanate, -henzoquinone, 2-hydroxypropyl acrylate in ethyl acetate solution) using dibutyltin diacetate catalyst, combined with tung oil, synthetic varnish, and benzoin methyl ether (27) 3. Epoxidized... 

Eethal concentration Median lethal dose Eow-density polyethylene Einear low-density polyethylene Maleic anhydride Methacrylic acid Methyl acrylate Methyl acrylate Methacrylonitrile Modified atmosphere packaging Methyl butyl ketone 2-Mercaptobenzothiazole 4,4 -Methylene dianiline Medium density fibreboard Magnesium hydroxide Methylene diisocyanate Medium density PE Monoethylhexyl phthalate Methylethyl ketone Melamine-formaldehyde Methyl isoamyl ketone... 

N Clear Sodium Silicate. See Sodium silicate NCMC. See Carboxymethyl chitosan N-Creamer 46. See Food starch, modified NCS. See N-Chlorosuccinimide NC Size C-25. See Styrene/acrylates copolymer ND-201 Syrup. See Malt extract 2,6-NDA. See 2,6-Naphthalene dicarboxylic acid NDBC NDBC. See Nickel dibutyidithiocarbamate NDEA. See N-Nitrosodiethylamine NDGA. See Nordihydroguaiaretic acid NDI. See 1,5-Naphthalene diisocyanate NDMA. See N,N-Dimethyl-p-nitrosoaniline N-Nitrosodimethylamine... 

Uses Aviation gasoline additive octane booster in gasoline solvent for paints, gums, resins, rubber, inks, cleaners, adhesives, cosmetics, pharmaceuticals diluent, thinner in nitrocellulose lacquers thinner for perfumes, dyes alcohol denaturant process solvent adhesive solvent in plastic toys in extraction of various principles from plants mfg. of benzene, benzoic acid, benzaldehyde, toluene diisocyanate for PU resins, dyes, TNT for explosives, toluene sulfonates for detergents and dyestuffs adjuvant in resinous/polymeric food-contact coatings in paper/paperboard in contact with dry food in acrylic food pkg. in cellophane for food pkg. adjuvant for PC food-pkg. resins solvent in food-contact PPO resins in food-pkg. adhesives Regulatory FDA 21CFR 175.105, 175.320, 176.180, 177.1010, 177.1200, 177.1440,... 

---