Abstract: Advances in oligomeric siloxane coatings applied as reactive silanols have arisen in the past several years that offer opportunities to solve problems that could not be addressed with traditional coating materials and methods. Although this class of new coatings is normally cited only for their corrosion resistance, they also exhibit the unusual phenomenon of having electron deficient surfaces. The electron deficient surface is formed as the coating cures in that organic radical groups from the silanes used in the formulation are forced to the surface of the coating. The silica atoms in the silicon oxygen structure below retain electrons skewing the electron cloud downward creating an electron deficient or net positively charged surface. The resultant surface discourages light hydrogen bonding of contaminants, thereby reducing leakage paths, particularly on insulators.

Abstract: Coating composition, articles, and methods for applying reactive silanol coating compositions having electron deficient surfaces formed as the coating composition cures wherein organic radical groups from the silanes are forced to the surface of the coating. The silicon atoms in the interpenetrating silicon-oxygen structure below retain electrons skewing the electron cloud downward creating an electron deficient or net positively charged surface. The resultant surface exhibits self-sterilization without toxic biocide additives due to the electron deficient surface. The surface is also extremely tight and thereby absent nutrients for microorganisms, discouraging organic growth such as mold. This unique positively charged surface further exhibits both hydrophobic and oleophobic qualities providing ease of cleaning for maintenance, particularly for hospital beds, equipment, floors, walls, curtains, bathrooms, or all the surfaces inside and outside of an ambulance and the equipment contained therein.

Abstract: Coating compositions and methods for applying reactive silanol coating compositions having electron deficient surfaces when cured wherein organic radical groups from the silanes are forced to the surface of the coating. The interpenetrating silicon-oxygen structure below the surface skews the electron cloud downward creating a net positively charged surface which is hydrophobic and oleophobic to repel contaminants by discouraging light hydrogen bonding. The surface is also extremely tight and thereby absent nutrients for microorganisms, discourages organic growth. These unique qualities provide cleanliness solutions for automotive and marine applications, including substrates subjected to elevated temperatures typically destructive to organic coatings (paints).

Abstract: Oligomeric silane coating compositions containing, for example, methyltrimethoxysilane, are used to coat new or used heat exchange apparatus, such as HVAC systems, to greatly improve the heat transfer efficiency and prevent or inhibit corrosion. These oligomeric coating compositions are able to fill microvoids in the heat exchange surfaces, and penetrate into the microcavities at the interface of swaged or force fit surfaces, such as fins and tubes. The oligomeric silane coating compositions are highly active and will form bonds not only with the metal and metal oxides of the heat transfer surfaces, but will also displace gasses or liquids at the heat transfer contact surfaces and form chemical and/or hydrogen bonds with the oxides and chemical impurities. By so doing, a parallel heat transfer pathway is formed. The applied coatings may be as thin as only a few millionths of an inch and will fill microcavities to a depth of up to about 2000 nanometers.

Abstract: Oligomeric silane coating compositions containing, for example, methyltrimethoxysilane, are used to coat new or used heat exchange apparatus, such as HVAC systems, to greatly improve the heat transfer efficiency and prevent or inhibit corrosion. These oligomeric coating compositions are able to fill microvoids in the heat exchange surfaces, and penetrate into the microcavities at the interface of swaged or force fit surfaces, such as fins and tubes. The oligomeric silane coating compositions are highly active and will form bonds not only with the metal and metal oxides of the heat transfer surfaces, but will also displace gasses or liquids at the heat transfer contact surfaces and form chemical and/or hydrogen bonds with the oxides and chemical impurities. By so doing, a parallel heat transfer pathway is formed. The applied coatings may be as thin as only a few millionths of an inch and will fill microcavities to a depth of up to about 2000 nanometers.

Abstract: Oligomeric silane coating compositions containing, for example, methyltrimethoxysilane, are used to coat new or used heat exchange apparatus, such as HVAC systems, to greatly improve the heat transfer efficiency and prevent or inhibit corrosion. These oligomeric coating compositions are able to fill microvoids in the heat exchange surfaces, and penetrate into the microcavities at the interface of swaged or force fit surfaces, such as fins and tubes. The oligomeric silane coating compositions are highly active and will form bonds not only with the metal and metal oxides of the heat transfer surfaces, but will also displace gasses or liquids at the heat transfer contact surfaces and form chemical and/or hydrogen bonds with the oxides and chemical impurities. By so doing, a parallel heat transfer pathway is formed. The applied coatings may be as thin as only a few millionths of an inch and will fill microcavities to a depth of up to about 2000 nanometers.

Abstract: Corrosion resistant coatings are provided by aqueous-alcoholic acidic dispersions of the partial condensate of monomethyl silanol (by hydrolysis of monomethyl alkoxysilane) alone or in admixture with minor amounts of other silanol, e.g., gamma-glycidyloxy silanol, phenyl silanol, etc, wherein the dispersions contain divalent metal cations, e.g., Ca.sup.+2, in place of all or most of colloidal silica used in prior formulations of this type. The coatings may be applied to boat hulls, including aluminum hulls and are effective in preventing corrosion from salt water for extended periods.

Abstract: A chronograph uses a Doppler radar technique to determine the muzzle velocity of a bullet discharged from small arms such as pistols and rifles. A radar unit is placed in near proximity to the firearm to track the bullet while it is still relatively close to the muzzle. The radar unit is equipped with an antenna which is insulated from the sonic disturbance created by the firearm blast by sonic damping means formed exteriorly on the antenna. Measured spacing and orientation of the antenna with respect to the firearm diminishes the sensitivity of the antenna to the electromagnetic disturbance associated with the firearm blast. Doppler signal processing means are also disclosed.