A process for the preparation of a photosensitive body surface coating material comprises hydrolytically condensing an alkoxysilane in a mixed solvent comprising an alcohol and water in the presence of finely divided silica. A polysiloxane resin is produced by heat curing the silane after its hydrolytic condensation. The polysiloxane resin has the formula: R.sup.1 SiO.sub.3/2, and R.sup.1 comprises fluorohydrocarbon groups. The photosensitive body surface coating material is not detrimental to t...

A process for preparing thin Cd.sub.2 SnO.sub.4 films. The process comprises the steps of RF sputter coating a Cd.sub.2 SnO.sub.4 layer onto a first substrate; coating a second substrate with a CdS layer; contacting the Cd.sub.2 SnO.sub.4 layer with the CdS layer in a water- and oxygen-free environment and heating the first and second substrates and the Cd.sub.2 SnO.sub.4 and CdS layers to a temperature sufficient to induce crystallization of the Cd.sub.2 SnO.sub.4 layer into a uniform single-ph...

A modified solid support for use in solid phase synthesis which comprises: a solid support having a linker group extending therefrom having the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are each independently selected from the group consisting of alkyl, cycloalkyl, aryl, alkoxy, aryloxy, fluorine, chlorine, iodine and bromine.

A running length of plastic film is processed by submerging a bight of the film in a bath of treatment liquid and drawing the film longitudinally therethrough by a pair of pinch rolls mounted closely adjacent and parallel to the top surface of the treatment liquid. The pinch rolls mechanically remove adhering droplets of the treatment liquid from the film as it emerges from the bath to thereby prevent non-uniform treatment. The film is washed as it emerges from the nip of the pinch rolls by flow...

Organopolysiloxane copolymers comprising units of the general formulae (CH.sub.3).sub.2 RSiO.sub.0.5 and ##EQU1## and SiO.sub.2, wherein R represents an alkyl group with 1 to 3 carbon atoms or a vinyl group, R' represents a divalent hydrocarbon radical with 1 to 10 carbon atoms, Q represents an organic radical of the formulae --OG, ##EQU2## or --OSiR.sub.3 in which G represents an alkyl radical with 1 to 4 carbon atoms, and each R group, which may be identical or different, is as defined above, ...

Vulcanized compositions of matter obtained by heating a mixture of bitumen, an olefin polymer, sulfur and a sulfur-containing vulcanization accelerator to a temperature of 80.degree. to 250.degree. C.

A new process for dyeing furs and skins below 70.degree.C is provided, which process is carried out with aqueous dyebaths containing a dyestuff, up to 15 g per liter of the whole preparation of an organic non-ionizable oxo compound with only limited solubility in water and optionally an emulsifier for these compounds. According to this process furs and skins can be dyed in deep and level shades with a broad scope of dyestuffs without any pretreatments for improving the dye-receptivity of the sub...

Liquid methylvinylphenylsiloxane resins are provided which are suitable for coating electrical conductors; they possess the particular advantage that the surfaces of such coatings can be crosslinked such that the surfaces are not sticky. These resins comprise recurring units chosen from the formulae: CH.sub.3 SiO.sub.1.5, (CH.sub.3).sub.2 SiO, CH.sub.3 (CH.sub.2 =CH)SiO, CH.sub.3 (C.sub.6 H.sub.5 SiO, C.sub.6 H.sub.5 SiO.sub.1.5 and (C.sub.6 H.sub.5).sub.2 SiO and corresponding to the average ge...

Single component liquid mercaptan containing polymers having at least two terminal mercaptan groups can be cured rapidly by exposure to atmospheric oxygen in the presence of (1) a thiuram and an iron or manganese salt, oxide, hydroxide or metal complex or (2) an iron or manganese dithiocarbamate. A synergistic effect is obtained when calcium peroxide is added to either or both of the above curing systems.

In a storable plastic organopolysiloxane composition which can be converted into a rubbery-elastic mass under the action of water and prepared by mixing an .alpha.,.omega.-dihydroxypolydiorganosiloxane with a silicon-containing crosslinking agent, the improvement which comprises incorporating in said mixture about 1 to 20% by weight of at least one material selected from the group consisting of dioxane, acrylonitrile, acetonitrile, trichloroethylene, butanesultone, butyl acetate and carbon tetra...