Atmer 129 Glycerol monostearate Ciba Antistatic agent Polyolefins (PE, PP…) Antistatic Agent / Mold Release Agent for Polyolefins Antistatic Agent / Process Aid for EPE Atmer 129 is an excellent antistatic agent for polyolefins that provides several beneficial side effects (e. g. lubrication and mold release) and has wide food contact approvals (details upon request). When Atmer 129 is used together with Atmer 163 (synthetic ethoxylated amine) in a 2:1 ratio, the combination is extremely effective, giving better antistatic performance due to a synergistic effect between the two products. Glycerol monostearate (min. 90% monoester content) Atmer 129 is an internal antistatic agent used in injection molding on a world-wide basis with wide food contact approvals and beneficial side effects. In combination with Atmer 163, the antistatic performance is improving. In sheet extrusion, Atmer 129 is used in combination with Atmer 163 to get the best possible antistatic performance. In polyolefine films Atmer 129 is mainly used in combination with Atmer 163. Atmer 129 is used as a process aid in production of expanded polyethylene (EPE) to improve the gas exchange (replacement of hydrocarbons -foaming gas- by air). Atmer 129 is recommended in the manufacturing of PP-caps to provide a slip/lubricant effect, in addition to the antistatic effect. Internal antistatic agents act in two ways: building up a conductive path to bring charged particles into contact and as a lubricant or demolding agent in the post-extrusion process. An internal antistatic agent is incorporated into the polymer matrix during the extrusion process. Upon extrusion, the additive migrates to the surface of the polymer - because of its defined incompatibility with the polymer - where the additive builds up an uniform layer on the polymer’s surface. The hydrophilic end projects out of the polymer, the lipophilic end anchors in the polymer. The protruding hydrophilic end absorbs moisture from the surrounding air and builds up a conductive path, reducing the surface resistivity. (This also explains why mainly too high concentrations of antistatic agents will have an influence on printing and sealing properties and why antistatic agents are hygroscopic and have to be handled accordingly). Using Atmer 129 as antistatic agent reduces dust contamination, affecting both appearance and performance of the end product. Handling problems during transport, storage and packaging are often reduced. In injection molding Atmer 129 reduces the cycle times by providing a mold release effect and improves the surface finishing. In EPE Atmer 129 reduces the friction during the extrusion process, giving an uniform cell size distribution and is improving the gas exchange (facilitating the diffusion of the foaming gas out of the cells and its replacement by air). By increasing the gas exchange rate between the foaming gas and air, Atmer 129 can significantly reduce storage time and cost. Atmer 129 improves the slip characteristics, e. g. of PP-caps, by reducing the forces needed to turn the PP-caps to open or close bottles. The use of Atmer 129 at the fabricator level is recommended in concentrate form (Atmer 7300 or Atmer 7306) or in pure form as pellet (Atmer 1013). Glycerol monostearate. Used as a very good antistatic agent for polyolefins. Provides lubrication and mold release. Can be used as a process aid in production of expanded polyethylene (EPE) to improve gas exchange, and in the manufacturing of PP-caps to provide a slip/lubricant effect, in addition to the antistatic effect. Reduces dust contamination.