Carrier oils definition

Using this definition all essential and carrier oils are organic. 

No single description or definition adequately covers all lubricants or lubrication processes. For example, we have seen that a fluid can function as a lubricant by virtue of its viscosity as a liquid. We have also seen that a monomolecular film of stearic acid deposited on a metal surface acts as a lubricant and dramatically reduces the coefficient of friction. A polymeric substance such as polymethylmethacrylate when dissolved in an oil will increase its viscosity and improve its loadcarrying performance in the hydrodynamic lubrication process. Stearic acid dissolved in a carrier oil can effect a strong reduction in the coefficient of friction for metal rubbed against metal. 

An important aspect of the function of compounded lubricants is to increase the load that can be carried by machinery without catastrophic damage to the rubbing components. Since the typical antiwear additives affect the viscosity of the carrier oil very little, it is not a fluid film effect that is responsible for the load-carrying augmentation. Examination of the various basic wear processes leads to the choice of the adhesive mechanism as the one most likely to respond to the action of boundary or extreme-pressure additives. The type of macroscopically observed severe wear which has this mechanistic process as its primary cause is generally designated as icu i ng (c(S. Chapter 13, Sections 13.4 and 13.6), and it is in this sense, as a description rather than a definition, that the term scuffing is used in the discussion to follow. 

This definition precludes aqueous inks, but further distinctions remain. There are solvent inks where the vehicle is a fluid with very low vapor pressure at room temperature. These inks are based either on glycols, or on oils and are used on absorbent substrates such as paper. The inks most commonly referred to as solvent inks are those in which the carrier is a solvent that evaporates or is driven off subsequent to printing. 

Activity. The differences found in activity of the catalyst are caused by two effects the definition of the catalyst-to-oil (CTO) ratio and the feed partial pressure in both reactors. The CTO is time averaged over the reaction time and is not clearly defined in the MST. The contact between the catalyst and oil is not constant throughout the experiment. At the beginning of the MST experiment fresh feed encounters fresh catalyst. However, after some time fresh feed meets a partially deactivated catalyst with coke already deposited on it. At the end of the experiment the situation is the opposite of the contact between catalyst and oil in an industrial unit. This makes the definition of the CTO not unambiguous in the case of the MST and can lead to over- or underestimation of the CTO. However, the most important effect is the difference in partial pressure of the feed in both sets of equipment the nitrogen carrier gas lowers the partial pressure in the MR. A lower partial pressure results in a lower conversion. With these two effects a higher activity for the MST can be expected. 

Definition Derived from Mucor miehei with maltodextrin or sweet whey as carrier Hazardous Decomp. Prods. Heated to decomp., emits acrid smoke and irritating fumes Uses Enzyme for hydrolysis of fats flavor enhancer in cheeses, fats, oils Regulatory FDA 21CFR 173.140 Trade Name Synonyms Palatase [Novozymes A/S http //www.novozymes.com]... 

Definition Methyl ester of rapeseed oil Uses Lubricant in metalworking and agric. adjuvants carrier, solvent for printing inks, leather treating compds. additive in adhesives for food production or pkg. 

A feature of this patent of Ho Tan Tai [43] is the absence of a control experiment where the antifoam is directly sprayed onto cold detergent powder. This means that definite evidence for the effectiveness of the chosen carrier materials in facilitating dispersal of the antifoam, despite a high proportion of solid wax, is not revealed. It also means that there is no evidence either that the chosen carrier materials inhibit storage deaetivation. Finally, we should note that the claimed hydrocarbon-hydrophobed silica antifoams are exemplified by the use of hydrocarbon blends containing either white mineral oil or spindle oil Velocite 6 (manufactured by Mobile). According to the relevant product data sheet [48], the latter material contains a defoamant ... 

Now we can reexamine the lipid bilayer as a chemical barrier, looking at it from the perspective of I<. A chemical that is water-soluble is, by definition, not lipid-soluble and as such wiU not be able to dissolve into the membrane. As such, its rate of diffusion across the barrier will be minimal. Without the aid of carrier proteins, the uptake of the chemical wiU be minimal, as wiU its toxicity. In contrast, a compound that is soluble in oil or fat is easily absorbed across the lipid bilayer, and as such, wiU have a greater potential for eliciting a... 

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