Insulating resins

Electrical Properties. Due to the comparatively low content of polar groups, most commercial ionomers ate very good insulating resins. Typical electrical properties (6) for a zinc ionomer are as foUows ... 

The central portion of the anode is filled with polystyrene and the anode cable attachment, whilst the remainder is filled with an insulating resin. 

Silicone c Xylene hydrocarbons, chlorinated hydrocarbons, ketones Electrical insulating resins, paint additive, brick sealant... 

Use Polymerizes to form heat-resistant and insulating resins somewhat similar to mica in dielectric properties. 

Electrical Conductivity—This factor, which is dependent on the amount and type of water extractables present in a resin, results from ionic and polar impurities that adversely affect use of the resin for electrical insulation. Resin with low electrical conductivity is desired for electrical applications. 

Sylgard . [Dow Coming Dow 0 ning France SA] Two-part silicone system electrical/electronic insulating resin. 

Note The name Dory is also used to designate a high temp insulating resin which has a diphenyl oxide structure linked wish methylene groups Micarta Div., Westinghouse Electric Corp. Ref Chem. Week, Sept. 29, 1962, p 92. 

In adding conductive filler to an insulating resin, the volume resistivity changes slowly until a critical level of filler is reached, called the percolation point. The percolation point occurs when the resistivity drops abruptly, then continues to drop slowly (Fig. 2.11). " Almost continuous linkage of metal particles occurs at the percolation point where typical filler volumes for silver flakes are 25-30%. According to the percolation theory, there is a minimum critical volume of filler required for electrical conductivity in a polymer at which each filler particle must contact two other particles. A misconception in the use of silver flakes is that increasing the number of contacts lowers volume resistivity. Actually, the converse is true because, once the percolation point has been reached, each additional contact adds resistance. Thus, increasing the particle size can increase conductivity since the total number of contacts for a fixed volume decreases." ... 

Chem. Descrip. y-Ureidopropyltrimethoxysilane CAS 23843-64-3 EINECS/ELINCS 245-904-8 Uses Adhesion promoter aiding bond between fillers and reinforcements (e.g., fiberglass, particulates, metals) and various polymers (phenolic, urea-melamine, epoxies, polyamide, PU), for use in glass fiber sizes and finishes, wool insulation resin binders, primers, foundry sand binders, adhesives, sealants, and abrasive grinding wheel binders Features Contains no flamm. or combustible solv. low VOC emissions Properties Lt. straw clear liq. sol. in methanol, ethanol, acetone, toluene, methyl Cellosolve, water m.w. 220 sp.gr. 1.15 b.p. 217-250 C (700 mm Hg) flash pt. (TCC) 99 C ref. index 1.386 100% act. Silquest Y-11597 [OSi Spec.]... 

Uses Adhesion promoter aiding bond between fillers and reinforcements (e.g., fiberglass, particulates, metals) and various polymers (phenolic, urea-melamine, epoxies, polyamide, PU) used in glass fiber sizes and finishes, wool insulation resin binders, primers, foundry sand binders, adhesives, sealants, and abrasive grinding wheel binders low VOC emissions... 

Device (a) pictured above is a metal electrode with its electric connexion embedded within an insulating resin, which moreover serves to delimit a well-defined surface area in contact with the electrolyte. 

In adding conductive filler to an insulating resin, the volume resistivity changes slowly until a critical level of filler is reached, called the percolation point. The percolation point occurs when the resistivity drops abruptly, then continues to drop slowly (Fig. 2.12). Almost continuous linkage... 

Corrosion protection by ICPs has been well documented in several reviews [136-141]. The use of ICP-based core-shell latexes for the corrosion protection of steel is a relatively new field of research, and a recent review has proposed the exploitation of such possibihties [142]. In a recent study, we found that ICP-based core-shell latexes offer the possibility of achieving anticorrosion properties [143], though the presence of pinholes or scratches in the coatings enhances the corrosion rate of metals. This problem may be due to poor dispersion of the composite particles in the insulating resin systems, and future research will need to develop conductive polymer-based anticorrosive primers for metals. The anticorrosive properties of PANI-coated polystyrene latex microspheres has been reported recently [144]. PS-PANI composite particles with core-shell structure were prepared by chemical oxidative polymerization of anihne monomer in the presence of a PVP-stabilized PS latex suspension. The reduced form of the particle was obtained by adding hydrazine mono hydrate to the suspension. Both oxidized and reduced PANI-PS particles were used to obtain a PANI-PS-coated iron electrode (PANl-PS-Fe). Pure PANI... 

To achieve line pitch connections, a metal sphere or metal-coated plastic sphere coated with an insulating resin fillers were developed. The insulating resin layer is broken only under pressure to expose the underlying conductive surfaces, referred to as a microcapsule filler- (MCF). A higher filler loading can be achieved with MCFs for fine pitch applications, which avoid creating electrical short circuit conditions between printed circuit features (7,12). A typical cross section of an ACA interconnection with MCF material is illustrated in Figure 2. 

Moisture, weathering resistant resins (vanishes) Chemical-resistant resins (lining materials, etc.) Abrasion-resistant resins (coating materials) Insulating resins (sealing compounds) Fire-resistant resins (vanishes) Pressure-sensitive adhesive resins Spherical powders (improvers to blocking and sliding properties for films)... 

The colored fraction from crude (FF grade) wood rosin decolorization does not have a generic name. The only material of this nature commercially available at the present time in the United States is the Hercules product, Vinsol. It consists of more than 50% phenolic components and about 25% resin acids and derivatives. Vinsol has a wide diversity of uses, which include emulsifiers for asphalts, tackifiers and bonding agents in adhesives, air-entrainment agents in cements, components of electric insulation, resin extenders in laminates, and foundry cores. 

Molding resins coatings, electrical insulating resins Meta or p(2m-isopropenyl-phenyl-dimethyl-carbinol France 1,574,376 1969 Farbenfabriken Bayer A.G. 

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