Additives lubricants/mold releases

Several additives are common in producing moldable ABS resins. These include lubricants, mold release agents, antistatic agents, heat stabilizers, light stabilizers and flame retardants (65). 

Generally these compositions contain an epoxy-novolac, a hardener, a catalyst, silica fillers, and an internal lubricant/mold release compound. Brom-inated epoxies and antimony trioxide are included to provide the required flame retardant characteristics. Other, unspecified additives are used to promote adhesion or to reduce corrosion rates. Because of their superior thermal capabilities and electrical properties, epoxidized novolacs are preferred over epoxy homopolymers. Near stoichiometric amounts of hardeners such as novolacs (Equation 1), anhydrides, and primary amines can be used to cure the resins in the presence of a catalyst. The linkages which are formed include ethers, esters, or secondary amines, respectively. 

For types used for molding, customary additives are stabilizers and antioxidants, flameproofing agents, agents against thermal decomposition and decomposition by ultraviolet light, lubricants, mold release agents, colorants,... 

Chem. Desaip. Oxidized polyethylene homopolymer CAS 68441-17-8 EINECS/ELINCS 200-815-3 Uses Additive wax for adhesives, ink, floor finishes, paper coatings, trade sales and industrial coatings, personal cate, plastics, textiles, wax blends processing lubricant mold release aid PVC lubricant film-former oil or... 

Chem. Descrip. Complexed lecithin CAS 8002-43-5 EINECS/ELINCS 232-307-2 Uses Instantizer, spray oils, mold release for foods food emulsifier for w/ 0 emulsions concrete (powder dispersant) dust control latex paints coatings/adhesives feed additives leather tanning lubricants mold release agents pesticides/herbicides corrosion/rust inhibitors putty/ caulking compds. emulsifier for w/o emulsions Properties Translucent fluid vise. 10 stokes HLB 2.0 acid no. 25 max. Beakin LV3P [ADM Lecithin]... 

Chem. Descrip. Complexed lecithin CAS 8002-43-5 EINECS/ELINCS 232-307-2 Uses Concrete (powder dispersant) dust control latex paints coatings/ adhesives feed additives leather tanning lubricants mold release... 

Chem. Descrip. PEG-90 CAS 25322-68-3 EINECS/ELINCS 203-989-9 Uses Chem. intermediate antistat, dye carrier, lubricant, mold release agent for adhesives, ceramic glazes, creams and lotions, mandrel releases, mining applies., soaps and detergents tablet binder/coating toilet bowl cleaners food additive food pkg. adhesives and food-contact drticiss... 

Uses Lubricant, mold release agent for mech. rubber goods (automobile floor mats, shock mounts, fan belts, o-rings, footwear, floor tile), plastics, foundry release softener, modifier for textiles in polishes paint and ink additive household cleaners Eeatures Effective at low cones. 

Resin is applied usually to the long chain of repeated units in the polymeric materials. This may be linear, branched, or cross-linked. Other constituents that contribute along with plastics as additives are plasticizers which improve the flexibility of the plastic, colored pigments, antioxidants, UV stabilizers, lubricants, mold-release agents, and sometimes biocides to inhibit microbiological deterioration. Additives influence the physical properties and resistance to deterioration in plastics. 

Acid scavengers neutralize catalyst residues and prevent equipment corrosion. The choice of the acid scavengers can affect the overall acidity/basicity of a resin and influence the reactions of many of the organic additives in the system. Also, the acid scavengers as metallic stearates will impart to the polymer a certain lubricity, mold release or slip properties. As acid scavengers can be used metallic stearates (of sodium, calcium and zinc, zeolites structures (dihydro talcite, both synthetic and natural) CaO and ZnO and other metallic salts based on lactic or benzoic acid. Environmental Products has introduced PTA-210 and PTA-310 for increased thermal stability of PE, EVA, EMA, EVAA, PP, and ionomers. They are used to neutralize acidic catalyst residues. Concentration level is very low (0.2-0.5%). The hydrocaldte L-SSRH introduced by Reheis has a similar effect. 

Reaction of TYZOR TPT with polyperfluoroalkylene ethers containing a carbonyl group produces a complex that is an excellent surface-treating agent, imparting improved surface wettabiUty and anticorrosion properties to metal surfaces (144). These complexes can be used by themselves, or as additives to perfluoropolyethers as vacuum pump oils, lubricant oils, or mold release agents. 

Three properties that contribute the most to migration are (1) incompatibility with the resin, (2) low melt point, and (3) low molecular weight. Examples of noncolorant additives that are prone to migrate are (1) lubricants/dispersants such as metal stearates and bis-stearamides, (2) mold release and slip agents, and (3) antistatic agents. All of these ingredients serve useful purposes in color formulations. If you exceed their solubility limit in the end-use resin, however, you risk blooming and its consequences. 

Has a monoester content of 50-60%, free glycerol 1%, and moisture 1%, maximum. It is used as a component in mold release agents, a vehicle for agricultural insecticides, an anti-icing fuel additive, and a rust preventive additive for compounded oils. It is used in the textile industry as a lubricant component in synthetic fiber spin finishes. 

Mineral oil is used primarily as an excipient in topical pharmaceutical formulations, where its emollient properties are exploited as an ingredient in ointment bases see Table I. It is additionally used in oil-in-water emulsions,as a solvent, and as a lubricant in capsule and tablet formulations, and to a limited extent as a mold-release agent for cocoa butter suppositories. It has also been used in the preparation of microspheres. " ... 

Processing aids - additives such as viscosity depressants, mold-release agents, emulsifiers, lubricants, and anti-blocking agents (3). 

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