Slip Agents and Lubricants

Erucamide is a particularly popular lubricant. Emcamide is also used, almost universally, as a slip agent in polyolefin closures. In this role, the emcamide functions to reduce the coefficient of fnction between the closure liner (or closure shell) and the container finish. Without such a slip agent, removal torques for such closures would be unacceptably high. Emcamide is widely used as a slip agent and lubricant because of its low cost and useful properties. Emcamide is a C22 fatty acid amide that possesses a double bond at the C13 position. Ozone, in particular, is extremely effective at selectively cleaving this double bond, creating the C9 aldehyde nonanal. ... 

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. 

Plastic additivation (vapor permeability, surface effects), additive for slip agents and (cooler) lubricants... 

Use For slip agents and for friction reduction in polyolefin films. As process lubricants for styrenics and PVC, mold release for phenolics, as antiblock agents for polyolefins. 

Rheothik Polymer. [Henkel/Emery] Polysulfonic acid tiiickener, suspending agent, slip agent for lubricant acid and alkaline systems. 

Stearic acid ste- ar-ik (1831) (octadecanoic acid) n. CH3(CH2)i6COOH. A saturated organic fatty acid obtained by the hydrolysis with sodium hydroxide (saponification) of beef tallow. Mp, 69°C bp, 29°C per lOOmmHg. The salts, amides, and esters of this acid have long played important roles in the realm of plastics as lubricants, slip agents, and plasticizers, and stearic acid itself is present in numerous plastics compounds. 

Antistats function to either dissipate or promote the decay of static electricity. Secondary benefits of antistat incorporation into polymer systems include improved processability and mold release, as well as better internal and external lubrication. Therefore, in certain applications, antistatic agents can also function as lubricants, slip agents, and mold release agents. 

Fatty acid amides are well known as an important class of polymer additives used as a slip agent or lubricant to prevent unwanted adhesion. Unfortunately the addition of such amides for the purpose of antiblock additives for polymer sheets, in glass laminates (reduction of imwanted adhesion between surfaces of the polymer sheet itself) adversely affects the optical characteristics of the polymer sheet, such as haze, transparency, and film clarity, as well as adhesion of the polymer sheet to glass. Consequently, the inclusion of fatty acid amides polymer sheet interlayers in glass laminates is necessary. 

Uses Lubricant, slip agent, and conditioner for cosmetic and industrial prods. prep, of invert emulsions emulsifier, corrosion inhibitor and lubricant in syn. coolants... 

Uses Pigment dispersant for polyolefins slip agenL antiblocking agent, and lubricant for polymer resins antistat and gloss aid for surfs, of molded and extroded prods. vise, reducer pigment dispersant in carbon black Features High m.p. 

As an example, when automotive catalytic mufflers and converters were introduced many years ago, the automobile industry required the petrochemical industry to eliminate lead from gasoline since lead degraded and reduced the effectiveness of the catalyst and caused the destruction of the gasoline. One set of industrial compounds that can harm catalysts are halogens, a family of compounds that include chlorine, bromine, iodine, and fluorine. Bromine, while not prevalent in industry, is present in chemical plants. Freons are fluorine compounds. Silicone is another compound that is deleterious to catalysts. It is used as a slip agent, or a lubricant, in many industrial processes. Phosphorous, heavy metals (zinc, lead), sulfur compounds, and any particulate can result in shortening the life of the catalyst. It is necessary to estimate the volume or the amount of each of those contaminants, to assess the viability of catalytic technologies for the application. 

Lubricants. A model for the lubrication mechanism has been developed lliat explains synergy between certain lubricants. Tins model neats lubricants as surface-active agents. Some lubricants have polar ends that arc attracted to other polar ends and to polar PVC flow units and to polar metal surfaces. These also have nonpolar ends that are repelled by the polar groups. Synergy happens when nonpolar Lubricants are added, which are attracted to the nonpolar ends and act as a slip layer. 

The principal concerns with the biocompatability of polymers are additives, residual monomers, and contaminants that are leachable in the body. Plastic extractables include such chemicals as base polymers, fillers, lubricants, plasticizers, antioxidants, pigments, and slip agents. They may also include reaction... 

Other potential contaminants are, however, less obvious and these include lubricants (e.g., silicone grease), plasticizers (e.g., phthalates, phenyl phosphates, sebacates, and bisphenol A), slip agents (e.g., oleamide, erucamide, and stearamide), biocides (e.g., quarternary ammonium compounds) and polymers extracted from laboratory consumables (e.g., silicones from laboratory tubing) and membrane filters (e.g., cyclic oligomers and Nylon 66).168 169... 

Octadecenamide, N,N -1,2-ethanediylbis-. (9Z,9 Z)- Oleamide, N,N -ethylenebis- (8CI) Oleic acid-ethylenediamine condensate. Lubricant, slip, antiblock, and mold release agent for plastics, crayons, petrol, products, asphalts, inks, metals, textiles mold release agent for thermoplastic resins in injection molding defoamer and water repellent in industrial/household Solid mp = 115-118 . CK KWfco Chem. Corp. 

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