Triallyl cyanurate

Hydrogenated nitrile rubbers were introduced in the mid-1980s as Therban by Bayer. The initial grade had an acrylonitrile content of only 17% instead of approx. 34% in conventional NBR. Whilst non-sulphur-curing systems such as the use of peroxides with triallyl cyanurate or isocyanurate are necessary, the saturated rubber has a number of advantages over NBR. These include improved... 

A substantial improvement in beat resistance may also be obtained by replacing the styrene with triallyl cyanurate Figure 25.6). 

This monomer is prepared by reacting cyanuric chloride with excess allyl alcohol in the presence of sodium hydroxide at 15-20°C. Laminates based on polyester resins containing triallyl cyanurate are claimed to be able to withstand a temperaure of 250°C for short periods. 

Commercial use of triallyl cyanurate is severely limited by the high price and the high curing exotherm of polyester-triallyl cyanurate systems. The exotherm... 

DPTS-di-pentamethylene thiuram tetrasulfide TDD-thiodiazoIe derivative NC-fatty acid amide amine B-18-special curative DOTG-dior-tho-tolyl guanidine peroxide 14/40-dicumyI peroxide TAC-triallyl cyanurate. 

The equilibrium contact angles for PE and triallyl cyanurate (TAC) grafted PE with water and formamide are presented in Table 7. The grafting of TAC onto PE increases the surface energies of modified PEs [32]. 

Strips of naturally-coagulated rubber removed from the tapping cut, vertical channels and spout prior to making the next tapping. The rubber is washed, dried, creped and sold as blanket crepe. Triallyl Cyanurate... 

Triallyl cyanurate (TAC), 2 265-267 Triallyl isocyanurate (TAIC), 2 265-267 Triallyl isocyanurate (TAIC), 5 204 Triaminotriethylamine molecular formula, 5 712t... 

Uses Ingredient in textile softeners and water repellent epoxy resins including allyl methacrylate, diallyl phthalates, and triallyl cyanurate. 

The influence of adding polyfunctional monomers having different structures and functionality into a dicumyl peroxide-based crosslinking system for LDPE was investigated. Monomers employed were diallyl phthalate, trimethylolpropane trimethacrylate and triallyl cyanurate. The effects of formulation on matrix gel content and on foam density at similar gel content were examined and the dependence of foam density on melt modulus assessed. The applicability of swell ratio for estimating foam density was evaluated and the suitability of triallyl cyanurate as a crosslinking promoter for LDPE foam demonstrated. 20 refs. 

CROSSLINKING OF POLYOLEFIN FOAMS. I. EFFECT OF TRIALLYL CYANURATE ON DICUMYL PEROXIDE CROSSLINKING OF LOW-DENSITY POLYETHYLENE... 

The crosslinking of unsaturated polyesters (Sec. 2-12a) is carried out by copolymerization [Selley, 1988]. Low-molecular-weight unsaturated polyester (prepolymer) and radical initiator are dissolved in a monomer, the mixture poured, sprayed, or otherwise shaped into the form of the desired final product, and then transformed into a thermoset by heating. Styrene is the most commonly used monomer. Vinyltoluene, methyl methacrylate, diallyl phthalate, a-methylstyrene, and triallyl cyanurate are also used, often together with styrene. 

Coagents are often used with peroxides to increase the state of cure. Some coagents, such as polybutadiene or multifunctional methacrylates, are used at high levels to form polymer grafts or interpenetrating networks. Other coagents such as triallyl cyanurate, triallyl trimellitate, and meta-phenylene bismaleimide are used at low levels to reduce the tendency of the polymer to degrade by chain scission. 

The most effective prorads for PVC are acrylic and allylic esters, such as triallyl cyanurate (TAC), trimethylolpropane trimethacrylate (TMPTMA), and trimethylolpropane triacrylate. The triacrylate is more reactive than the trimethacrylate, but it is more toxic and, for that reason, is used only seldom. The amounts of these additives are 1 to 5% of the formulation weight. ... 

EPDM Ethylene propylene diene rubber with 50 wt% paraffinic oil, PP polypropylene, DTBPH 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane (40% pure), DTBPHY 2,5-dimethyl-2,5-di(tert-butylperoxy)hexyne-3 (45% pure), DTBPIB di(fer/-butylpcroxyisopropyl)bcnzcnc (40% pure), DCP dicumyl peroxide (40% pure), TAC triallyl cyanurate (50% pure), 1076-Irganox 1076, 168-Irgafos 168... 

The literature reports direct grafting by gamma-rays exposure of Nylon fibers or films to the following monomers carbon monoxide (/65), ethylene (157), propylene (157), acetylene (166), butadiene (157.162,163), styrene (158, 161,163,167,168), vinyl chloride (157,163), vinyl fluoride (169-172), vinyl acetate (161,163,173), vinyl propionate (161), vinyl butyrate (161), vinyl crotonate (161), vinyl 2-ethyl hexanoate (161), acrylic add (173,174), methyl acrylate (162, 163), ethyl acrylate (162,163), allyl acrylate (163), methyl methacrylate (28,161, 163,164), butyl methacrylate (161), acrylamide (158), methylol acrylamide (163), acrylonitrile (157,160-163, 167, 175-179), divinyl sulfone (161), vinyl pyridine (167,173), vinyl pyrrolidone (28) and triallyl cyanurate (158). 

It many ways the alkyl cyanurates behave as typical esters. They are hydrolyzed to cyanuric acid and the appropriate alcohol, and readily undergo transesterification reactions. Cyanurates react with ammonia to form melamine under severe conditions <59HC(l3)l, p.i7). The reaction with amines usually gives mixed products, but triallyl cyanurates react to form the monosubstituted products in excellent yields (Scheme 35) (75S182.75S184). 

Triallyl cyanurate , see 2,4,6-Triallyloxy-l,3,5-triazine, 3524 Triallyl phosphate, 3178 Triaminoguanidinium nitrate, 0514 Triaminoguanidinium perchlorate, 0512... 

---