Abstract: A therapeutic material is contained in a water soluble glass having a dissolution rate that is distinctly pH sensitive, the ratio of dissolution rates between pH 2 and pH 6 being greater than 60 to 1. The glass incorporates phosphorus pentoxide as the glass former and an alkali metal oxide and one or more alkaline earth metal oxides as glass modifiers.

Abstract: A liquid containing radioactive ions is purified (decontaminated) by contacting the same with an inorganic ion exchange composition having ion exchange sites which can be occupied by the radioactive ions from the liquid. The ion exchange composition is a mixture of an ion exchange medium and an additive which is relatively inert to the ion exchange process and which is a sintering aid for the ion exchange medium designed to lower the sintering temperature of the ion exchange composition. The ion exchange composition may be disposed within a suitable container (e.g., cannister), e.g., made of 304L stainless steel or Inconel 601 and the ion exchange process may be carried out in such container. Alternatively, the ion exchange medium can be employed without being previously admixed with the additive. The additive, if desired, can be admixed at a later stage with the contaminated medium.

Abstract: The strength of end terminations on multilayer capacitors employing base metal electrodes is increased by heating the terminations, subsequent to firing in a reducing atmosphere, in an atmosphere in which the oxygen partial pressure is at least equal to that of air for a period of at least 15 minutes at a temperature of 375.degree. C.-600.degree. C.

Abstract: A projection apparatus includes an optical system for forming an image of an object illuminated by an illumination source on a photosensitive member. In the projection apparatus according to the invention, at least one lens in the lens system disposed in the optical path extending from the illumination source to the photosensitive member is such lens which possesses a property of spectral transmission factor to compensate the spectral sensitivity of the photosensitive member.

Abstract: What is disclosed is a method of preparing carbon-containing monolithic glassy ceramics from organosilsesquioxanes, metal oxides and metal alkoxides through pyrolysis of their gels. Also disclosed are certain gel compositions used in the method and the glassy ceramics.

Abstract: A controlled release glass is based on phosphorus pentoxide as the glass forming oxide and an alkali metal oxide as the principal glass modifier. The glass contains a modifying oxide of a material to be released slowly, e.g. one of the oxides of the alkali metal, or an oxide of an alkaline earth metal, an oxide of a metal of Group IIIA of the Periodic Table or a transition metal oxide, depending on the deficiency to be cured.

Abstract: This invention is directed to the production of sealing glasses capable of forming strong, non-porous seals with glasses containing at least 10% by weight of an alkali metal oxide such as are used in the fabrication of the glass membranes utilized in sodium-sulfur and potassium-sulfur batteries. The inventive seals require an interdiffusion of ions to occur between the sealing glass and the glass being sealed. Glasses presently employed as membrane glasses for such batteries have base compositions within the Na.sub.2 O--B.sub.2 O.sub.3 and K.sub.2 O--B.sub.2 O.sub.3 systems. The inventive sealing glasses consist essentially, expressed in mole percent on the oxide basis, of about 3-30% R.sub.2 O and 60-95% B.sub.2 O.sub.3, wherein R.sub.2 O consists of K.sub.2 O, Rb.sub.2 O, Cs.sub.2 O, and mixtures thereof and, optionally, Al.sub.2 O.sub.3 is substituted for up to one-half the B.sub.2 O.sub.3 content on a molar basis.

Abstract: A corrosion inhibiting material comprises a water soluble zinc oxide/phosphorus pentoxide/alumina glass which, when in contact with water, releases ions which inhibit corrosion of adjacent metal surfaces. Advantageously the glass is finely ground and then dispersed in a resin carrier to form a paint. The glass composition is preferably 54.6 to 63.3 mol % zinc oxide, 35.8 to 45.3 mol % phosphorus pentoxide; the remainder at least 0.1 mol % aluminum oxide.

Abstract: What is disclosed is a method of preparing carbon-containing monolithic glassy ceramics from organosilsesquioxanes, metal oxides and metal alkoxides through pyrolysis of their gels. Also disclosed are certain gel compositions used in the method and the glassy ceramics.