Polypropylene lubricants

Viscol. [Sanyo Chem. Industries] Low m.w. polypropylene lubricants and pigment dispersants for plastics. 

Microemulsions, temporary emulsions, that is, two-layer haH dressHigs, and clear solutions of nonvolatile lubricants are on the market. HaH tonics, usually hydro-alcohoHc, achieve similar effects by including Hpid substances or synthetic em ollients, such as the mono butyl ethers of polypropylene oxides [9003-13-8] (10—50 mol). The primary benefits of these Hpid-based products are lubrication and improvements Hi haH gloss and hair-hoi ding (dressHig)... 

Fiber Cores. For all wire ropes, all fiber cores shall be hard-twisted, best-quality, manila, sisal, polypropylene, or equivalent. For wire ropes of uniform diameter, tbe cores shall be of uniform diameter and hardness, effectively supporting the strands. Manila and sisal cores shall be thoroughly impregnated with a suitable lubricating compound free from acid. Jute cores shall not be used. 

Coupling agents such as hydroxymethyl benzene or a polyoxyeth-ylene-polyoxypropylene ether [polypropylene glycol-polyethylene glycol ether, POE-POP ether, e.g., Ucon synthetic lubricant from Union Carbide Corp.)] and hydrotropes, such as an imidazoline car-boxylate may also be needed to hold the formulation together. 

Acid-treated clay catalyst Engelhard F-24 was found to be very effective for the alkylation of diphenylamine (DPA) with an olefin such as a-methyl styrene (AMS) to obtain a mixture of mono and dialkylated diphenylamines (Chitnis and Sharma, 1995). For example, alkylation of DPA with AMS produced a mixture of 4-(a,a-dimethyl benzyl) diphenylamine, i.e. monocumyl-diphenylamine (MCDPA) and 4,4 -bis(a,a-dimethylbenzyl) diphenylamine, i.e. dicumyldiphenylamine (DCDPA) (Eqn.(l 1)). The dialkylated diphenylamine, i.e. DCDPA, is indu.strially important as an antioxidant and heat stabilizer. DCDPA is reported to be an ideal antioxidant for many materials like polyethylene, polypropylene, polyether polyol, polyacetals, nylon 6, synthetic lubricants, hot melt adhesives, etc. 

Impact damage occurred to one of 48 10 kg polypropylene tubs of calcium hypochlorite, each closed with a polythene lid, all supported on a wooden pallet and stretch-wrapped round the base with polyethylene film. The spilled material was swept up and discarded, and the pallet was moved to another part of the warehouse, and some 30 mins, later flames were seen at the base of the pallet [1]. Ignition was attributed to contact between residual solid hypochlorite on the pallet and lubricant drips on the concrete floor from fork lift traffic. Application of a dry powder extinguisher had little effect on the fire, but use of a 40 1 water extinguisher led to rapid escalation of the fire as contact between hypochlorite... 

Abstract Polyolefins such as polyethylene, polypropylene and their copolymers have excellent bulk physical/chemical properties, are inexpensive and easy to process. Yet they have not gained considerable importance as speciality materials due to their inert surface. Polyethylene in particular holds a unique status due to its excellent manufacturer- and user-friendly properties. Thus, special surface properties, which polyethylene does not possess, such as printability, hydrophilicity, roughness, lubricity, selective permeability and adhesion of micro-organisms, underscore the need for tailoring the surface of this valuable commodity polymer. The present article reviews some of the existing and emerging techniques of surface modification and characterisation of polyethylene. 

Is a water soluble product primarily used in lubricating polypropylene yarns to improve their performance in carpet backings. 

Is a low viscosity product that provides excellent lubricity for nylon, polyester and polypropylene fibers. 

Lubricant for fiberglass prevents needle cutting polypropylene emulsion stable in resin baths,... 

Wax emulsion, improves the abrasion properties of crease-resistant finished fabrics, improves the sewability lubricant for polypropylene ropes. 

Plastics that are commonly processed by extrusion include acrylics (polymethacrylates, polyacrylates) and copolymers of acrylonitrile cellulosics (cellulose acetate, propionate, and acetate butyrate) polyethylene (low and high density) polypropylene polystyrene vinyl plastics polycarbonates and nylons. The material properties and extrusion properties have been reviewed by Whelan and Dunning.Additives that may be included to modify or enhance proper-ties include lubricants and antislip agents to assist processing during extrusion plasticizers to achieve softness and flexibility stabilizers and antioxidants to retard or prevent degradation and dyes and pigments. 

Additive used for thermoplastic applications requiring lubrication, slip and anti-blocking properties. Commonly used in polyethylene and polypropylene films, as a lubricant in polyvinyl chloride, mold release agent, dyestuff dispersant for printing inks and surface coatings, and a blending agent for polyamide resins. 

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