Elastomers lubricants

In addition to plasties, elastomers, lubricants, and fuels, the above mentioned inhibitors are applied as protective agents in halogenation reforming proces.ses" as well as in prevention of the polymerization of monomers and unsaturated compounds during storage. 

Use Solvent and plasticizer for cellulose esters and ethers, elastomers, lubricant rubberized fabrics lacquers dopes transfer inks. 

ELA [Du Pont]. Brand name for elastomer lubricating agent, a mixture of phosphate esters. Light-amber liquid. 

Chem. Descrip. Untreated fumed silica, undensed CAS 112945-52-5 EINECS/ELINCS 231-54S4 Uses Reinforcing agent for adhesives, coatings, defoamers, elastomers, lubricants, plastisols, liq. resins, sealants, silicones, cosmetics, pharmaceuticals food pkg. adhesives, coatings, paper/paperboard, cellophane, film, rubber articles detoamer in fo< -contact coatings, paper/paperboard... 

Uses Heat stabilizer for vinyl resins, lacquers, elastomers lubricant for flexible vinyls catalyst for PU foam and silicone elastomers catalyst forfood-contact PU resins and PU resins in food-pkg. adhesives plasticizer... 

Properties Lt. yel. liq. sol. in benzene, toluene, petroleum ether, aromatic soivs. insol. in water, methanol m.w. 405.11 dens. 1.25 flash pt. > 230 F ref. index 1.4930 Toxicology TLV 0.1 mg(Sn)/m of air toxic irritant Uses Polymerization catalyst for mfg. of PU foam, coatings, adhesives, sealants, elastomers lubricant addition agent stabilizer for transfonner oils curing agent for RTV silicone rubber catalyst for PU resins in food-pkg. adhesives Regulatory FDA 21CFR 175.105... 

Formula C4H9OOCCH2OCH2OCOOC4H9 Properties Light tan liq. m.p. 21 C b.p. 204 C (26 mm) flash pt. 90.5 C ref. index 1.4463 Precaution Combustible Uses Solvent, plasticizer for cellulose esters and ethers, elastomers, lubricants, rubberized fabrics, lacquers, dopes, transfer inks Manuf./Distrib. ChemService http //www. chemservice. com... 

Uses Functional comonomer for acrylic resins monomer for concrete resurfacing, air-drying adhesives, coatings, sealants, elastomers, lubricant additives, photographic reproductive toners, water treatment, textile chems. improves cohesive str. through crosslinking Manuf./Distrib. Aldrich http //www.sigma-aidrich.com, Rhodia HPCII http //www.rhodia-hpcii.com... 

Uses Polymerization catalyst for mfg. of PU foam, coatings, adhesives, sealants, elastomers lubricant addition agent stabilizer for transformer oils curing agent for R7V silicone rubber catalyst for PU resins in food-pkg. adhesives... 

The dialkyl succinates are good plasticizers for vinyl chloride polymers and copolymers and for cellulose derivatives. SA is also used in the manufacture of alkyd resin to impart flexibility, elasticity, and water resistance. " In addition, it finds numerous applications in the field of adhesives, elastomers, lubricants, pharmaceuticals, pesticides, and epoxy and other resins. Succinic acid is also used as a food acidulant and has been placed on the GRAS (generally regarded as safe) list by the FDA. ... 

Uses Cross-linker for polyesters used in surface coatings, flexible unsaturated polyesters, ink resins, elastomers, lubricants, greases, plasticizers, epoxy curing agents, corrosion inhibitors, soaps... 

Trimethyl-l,3-pentanediol (7) is a white, crystalline soHd. It is used in surface coating and unsaturated polyester resins. It also appears promising as an intermediate for synthetic lubricants and polyurethane elastomers and foams. 

The greatest amount of surfactant consumption is in packaged soaps and detergents for household and industrial use. The remainder is used in processing textiles and leather, in ore flotation and oil-drilling operations, and in the manufacture of agricultural sprays, cosmetics, elastomers, food, lubricants, paint, pharmaceuticals, and a host of other products. 

Butyl mbber, a copolymer of isobutjiene with 0.5—2.5% isoprene to make vulcanization possible, is the most important commercial polymer made by cationic polymerization (see Elastomers, synthetic-butyl rubber). The polymerization is initiated by water in conjunction with AlCl and carried out at low temperature (—90 to —100° C) to prevent chain transfer that limits the molecular weight (1). Another important commercial appHcation of cationic polymerization is the manufacture of polybutenes, low molecular weight copolymers of isobutylene and a smaller amount of other butenes (1) used in adhesives, sealants, lubricants, viscosity improvers, etc. 

Poly(alkylene glycol)s have a number of characteristics that make them desirable as lubricants. Compared to petroleum lubricants, they have lower pour points, a higher viscosity index, and a wider range of solubilities including water, compatibility with elastomers, less tendency to form tar and sludge, and lower vapor pressure (35). 

Plasma processing technologies ate used for surface treatments and coatings for plastics, elastomers, glasses, metals, ceramics, etc. Such treatments provide better wear characteristics, thermal stability, color, controlled electrical properties, lubricity, abrasion resistance, barrier properties, adhesion promotion, wettability, blood compatibility, and controlled light transmissivity. 

Sulfonic acid salts have found widespread use in the area of corrosion inhibition. Lubrizol Corporation produces a wide variety of sulfonic acids, particularly in the form of magnesium salts, for use in lubricant formulations, anticorrosion coatings, greases, and resins (146,147). Petroleum sulfonates are used in epoxy resin elastomers to improve anticorrosion properties of coatings and sealants (qv) (148,149). 

Substituted Amide Waxes. The product of fatty acid amidation has unique waxlike properties (13). Probably the most widely produced material is N,1S7-distearylethylenediarnine [110-30-5] which has a melting point of ca 140°C, an acid number of ca 7, and a low melt viscosity. Because of its unusuaHy high melting point and unique functionaHty, it is used in additive quantities to raise the apparent melting point of themoplastic resins and asphalts, as an internal—external lubricant in the compounding of a variety of thermoplastic resins, and as a processing aid for elastomers. 

Antioxidants resistant to extraction by lubricants and gasoline are preferred for the stabili2ation of elastomers used in automotive appfications such as gaskets and tubing. Aromatic amine antioxidants, such as A/-phenyl-Ar-(p-toluenesulfonyl)-A-phenylenediamine [100-93-6] (37), with low solubifity in hydrocarbons, are extracted slowly from elastomers and are used for these appfications. 

Plasticizers (qv) are usually present at lower concentrations compared to general-purpose mbber-based compounds, because of their volatility at typical ACM service temperatures and/or their partial extractabiflty by the aggressive fluids where acryflc elastomers are employed. Other additives are therefore required to improve processibiflty. These processiag aids act as lubricating agents and enhance the release characteristics of the acryflc compound and/or reduce compound viscosity. 

Component fail- Ensure all materials of construction exposed to lire when cryo- low temperatures are suitable (carbon steel, plas-genic cooling is tics, elastomers in seals, lubricants, etc.) Provide adequate control system to maintain design temperature CCPS G-29 CCPS G-12 CCPS G-23 CCPS G-39 Fisher 1990 NFPA 55... 

Both the dipolymers and terpolymers have excellent resistance to hydrocarbons found m petroleum-based fuels and lubricants The 69 5% F terpolymer resists swellmg m blended fuels that contain metlianol and can be used in contact with certain phosphate ester-based hydraulic fluids Terpolymers are preferred for contact with aromatic solvents, although either type performs well in higher alcohols VDF-based elastomers dissolve m polar aprotic solvents such as ketones, esters, amides, and certam ethers These elastomers are therefore not suitable for contact with fluids that contain substantial amounts of these solvents because of excessive swell and consequent loss of mechanical properties... 

Elastomer-plastic blends without vulcanization were prepared either in a two roll mill or Banbury mixer. Depending on the nature of plastic and rubber the mixing temperature was changed. Usually the plastic was fed into the two roll mill or an internal mixer after preheating the mixer to a temperature above the melting temperature of the plastic phase. The plastic phase was then added and the required melt viscosity was attained by applying a mechanical shear. The rubber phase was then added and the mixture was then melt mixed for an additional 1 to 3 min when other rubber additives, such as filler, activator, and lubricants or softeners, were added. Mixing was then carried out with controlled shear rate... 

The positive displacement motor of the Moineau-type design can be operated with unstable foam (or mist) as the drilling fluid. Some liquid must be placed in the air or gas flow to lubricate the elastomer stator as the metal rotor rotates against the elastomer. Positive displacement motors have been operated quite... 

DSM Engineering Plastics, nylon, PBT, Polycarbonate Thermoplastic Elastomer PC/ABS Conductive Resins Thermoplastics Reinforced and Filled Thermoplastics Lubricated... 

SUicone elastomers have a relatively high coefficient of friction and the resulting lack of lubricity can cause pain and tissue damage on device insertion and removal. Therefore, the tissue side of the prosthesis must be smoothed, polished, and even also lubricated to eliminate friction. 

When the water film is squeezed out, the thick water layer is removed and the surfaces are separated by lubricant film of only molecular dimensions. Under these conditions, which are referred to as BL conditions, the very thin film of water is bonded to the substrate by very strong molecular adhesion forces and it has obviously lost its bulk fluid properties. The bulk viscosity of the water plays little or no part in the frictional behavior, which is influenced by the nature of the underlying surface. By comparing with the friction force of an elastomer sliding on a rigid surface in a dry state, Moore was able to conclude that for an elastomer sliding on a rigid surface under BL conditions, one can expect ... 

Process and extender oils function as physical lubricants in elastomer compounds. The oils used in elastomer compounding serve three main purposes [26] ... 

Polymer-bound antioxidants must be molecularly dispersed (i.e. infinitely soluble) and cannot be physically lost from the substrate. High-MW phenolic AOs are preferred for applications requiring FDA approval, minimal discoloration, and long service life at high temperatures. Antioxidants are used for protection of polymers, plastics, elastomers, foods, fuels and lubricants. 

Saturated hydrocarbons (waxes), fatty acids, metal soaps, fatty acid amides and esters (primarily Cig-Cis) act as internal lubricants, fluoro elastomers as external lubricants. Many other polymer additives, e.g. antistatic agents, antifogs, antioxidants, UV stabilisers, etc., act as lubricants in the barrel of the extruder once they are in the liquid form. 

Peduoropolyethers, which constitute special class of fluoropolymer, are useful as lubricants,1 elastomers,2 and heat-transfer fluids under demanding conditions. Several commerical products are available, which are generally prepared by ring-opening polymerization of hexafluoropropylene oxide or by the random copolymerization oftetrafluoroethylene and hexafluoropropylene with oxygen under ultraviolet irradiation.3 Direct fluorination of hydrocarbon ethers has been reported4 but must be done very slowly under carefully controlled... 

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