Abstract: Precursor solutions for radiation patternable coatings are formed with an organic solvent and monoalkyl tin trialkoxides in which the water content of the solvent is adjusted to be within 10 percent of a selected value. Generally, the water content of the solvent is adjusted through water addition, although water removal can also be used. In some embodiments, the adjusted water content of the solvent can be from about 250 ppm by weight to about 10,000 ppm by weight. With the appropriate selection of ligands, the adjusted precursor solutions can be stable for at least about 42 days, and in some cases at least 8 months.

Abstract: A stable extendable apparatus is provided which includes top, bottom, front and rear structures coupled together. The top and bottom structures each include at least one extendable member which defines a minimum length in a longitudinal retracted position and a maximum length in a longitudinal extended position. The front and rear structures each includes a first side support, a second side support, and an extendable cross-support to couple the first and second side supports together. Extension or retraction of the extendable cross-support changes an angle of orientation of the first side support relative to the second side support. The first rear side support, the second rear side support, and the extendable rear cross-support correspond to positions of the respective front supports.

Abstract: A stable extendable apparatus is provided which includes top, bottom, front and rear structures coupled together. The top and bottom structures each include at least one extendable member which defines a minimum length in a longitudinal retracted position and a maximum length in a longitudinal extended position. The front and rear structures each includes a first side support, a second side support, and an extendable cross-support to couple the first and second side supports together. Extension or retraction of the extendable cross-support changes an angle of orientation of the first side support relative to the second side support. The first rear side support, the second rear side support, and the extendable rear cross-support correspond to positions of the respective front supports.