Biological lubricants

In most applications, cellulose derivatives are not used alone but are admixed with materials, that may be either polymers, or plasticizers or various substrates (tabletted cores, fillers, lubricants, biological tissues). In compatibility studies, a systematic examination has gradually been substituted for trial-and-error approaches. Several experimental methods have been proposed for the evaluation of interaction phenomena in polymeric systems [64]. For the solid state (without solvent ), the main techniques are ... 

There is a mud-discharge-rate limitation of 1,000 bbl/hr, with reduced rates near areas of biological concern. The discharge of mud containing diesel for lubricity purposes is prohibited. 

The Cadila system [13] has been designed to formulate tablets for drugs based on their physical (solubility, hydroscopicity, etc), chemical (functional groups), and biologically interrelated (dissolution rate) properties. The system first identifies the desirable properties for optimum compatibility with the drug, selects those excipients that have the required properties, and then recommends proportions based on the assumption that all tablet formulations comprise at least one binder, one disintegrant, and one lubricant. Other... 

Industrially, silicone surfactants are used in a variety of processes including foam, textile, concrete and thermoplastic production, and applications include use as foam stabilisers, defoamers, emulsifiers, dispersants, wetters, adhesives, lubricants and release agents [1]. The ability of silicone surfactants to also function in organic media creates a unique niche for their use, such as in polyurethane foam manufacture and as additives to paints and oil-based formulations, whilst the ability to lower surface tension in aqueous solutions provides useful superwetting properties. The low biological risk associated with these compounds has also led to their use in cosmetics and personal care products [2]. 

Solvents, extender oils, and insoluble monomers are used throughout the rubber industry. In addition, miscellaneous oils are used to lubricate machinery. Laboratory analysis indicates the presence of oil and grease in the raw wastewater of these plants. Oil and grease entering the wastewater streams are removed by chemical coagulation, dissolved air flotation, and, to some extent, biological oxidation. 

Thiadiazoles have a wide variety of uses, in particular as biologically active compounds in agriculture and in medicine, as dyestuffs, lubricant additives, and vulcanization agents. Reviews of... 

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