Binder lubrication

Uniaxial pressing is the method most widely used to impart shape to ceramic powders (24). Binders, lubricants, and other additives are often incorporated into ceramic powders prior to pressing to provide strength and assist in particle compaction (25). Simple geometries such as rectangular... 

Excipients are sub-divided into various functional classifications, depending on the role that they are intended to play in the resultant formulation, for example, fillers, disintegrants, binders, lubricants and glidants. An added complexity is the fact that certain excipients can have different functional roles in different formulation types. Thus, lactose is widely used as a filler or diluent in solid oral dosage forms, for example, tablets and capsules [2] and as a carrier for inhalation products [3]. 

Run Binder (%) Lubricant (%) Disinte-grant (%) Glidant (%) Water (%) Compression force (kN) Disintegration Hardness (Kp) time (secs) Friability (%) ... 

The British, in developing techniques to form strong pellets of their pyrot compns by consolidation, investigated a number of additives which act as binder/lubricants (Ref 73). Four groups of materials were investigated waxes, oils, resins and rubbers. The principle functions of these materials in pelleting pyrot material is ... 

Materials should have good flow characteristics and cohesive properties. Feed preparation, binder, lubricants used to meet requirements. Can produce compacts of simple shape with controlled properties at high rates. 

Screw extruders are also used, however, to produce pelleted materials, either as a final product or for further processing, in the food, ceramics, chemical and other industries. Many orifices in a die plate form a multiplicity of extruded rods which are cut into pellets by rotary cutter blades. The extrusion operation is frequently the final step in a sequence of processes which may include binder/lubricant addition, mixing, heating, cooling or vacuum degassing. 

The fact that most vegetable oils and fats are nontoxic allows them to be used as reliable excipients or carriers in many pharmaceutical formulations. Vegetable oils and fats have been approved as excipients to facilitate delivery of bioactive compounds, to act as fillers, binders, lubricants, solubilizers, emulsifiers, and emollients in a variety of delivery forms including tablets, capsules, suppositories, emulsions (enteral/parenteral), ointments, creams, and lotions. Other nondirect applications include artificial blood, gene delivery, diagnostic imaging, and medical devices (27). 

The cold pressing is carried out in hardened steel dies. The carbide powder is first mixed with 0.5-5% of binder lubricants, such as paraffin, camphor, Carbowax, cetyl alcohol, or beeswax dissolved in nonaqueous inert solvents such as benzene, isopropyl alcohol, or methyl alcohol. The bonded carbide powder is granulated by forcing through a screen and then loaded into the dies. The density of the cold-pressed pellets may be as high as 80% of theoretical, and the sintered pellets may be densified to 90% of theoretical. The optimum sintering condition is 1800°C for 4 h. 

Carbowax . [Union Carbide] I G binder, lubricant, intermediate, antistat, release agent, plasticizer for ceramics, powd. metallurgy, toilet bowl cleaners, adhesives, inks, mining, sotq>s, deto -g its, creams and lotions, dentifrices. 

Dynasan . [Hills Am.] Glyceryl triesters emollient and lubricant for cosmetic sticks, cakes, creams binder, lubricant, exc i t for tablets. 

Glyceryl esters additive for tablets, binder, lubricant... 

The use of axial designs is illustrated in an experiment by Chariot, Lewis and Mathieu (13), who used it to investigate a conventional tablet formulation, containing a mixture of up to 5 diluents, disintegrant, binder, lubricant, binder (see table 9.10). The resulting axial design is shown in table 9.11. 

Seyco . [Seydel-Woolley] Sizes, binders, lubricants for textile s lics. 

Protect the fibers from damage is by a binder lubrication during their formation and such subsequent textile operations as twisting, plying, and weaving. Usually they are satisfactory when used with certain thermoplastics (TPs) but are not compatible with thermoset (TS) plastics. As an example, the hydrophilic character of the binders allows moisture to penetrate the glass-plastic interface, which leads to degradation of RTFs or RTSs in wet and humid environments. 

Chem. Descrip. Wh. mineral oil NF CAS 8020-83-5 EINECS/ELINCS 232-455-8 Uses Release agent, binder, lubricant, protective coating for foods Regulatory FDA 21CFR 172.878,178.3620,573.680 USDA H-1 and/ or 3H cerfified... 

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