Abstract: Trisaminosulfonium salts of the formula (R.sup.1 R.sup.2 N)(R.sup.3 R.sup.4 N)(R.sup.5 R.sup.6 N)S.sup.+ X.sup.- wherein the R groups are alkyl of 1-20 carbons and each alkyl has at least 2 alpha hydrogens and X is selected from the group (CH.sub.3).sub.3 SiF.sub.2, Cl, Br, I, CN, NCO, NCS NO.sub.2 and N.sub.3, are soluble in organic liquids. They are useful as polymerization catalysts and as reagents to replace other atoms or groups in organic compounds with F, Cl, Br, I, CN, NCO, NCS, NO.sub.2 or N.sub.3.

Abstract: New forms of copper aluminum sulfide are semiconductors. Depending on the amount of dopant present, they are either p-type or n-type.

Abstract: Chloral is copolymerized with one or more isocyanate, isothiocyanate, diisocynate, diisothiocyanate or ketene compounds to produce copolymers which are nonflammable and which can be made into a variety of useful, shaped objects. The process of making the copolymers involves preparing a homogeneous mixture of monomers and polymerization initiator at a temperature above the threshold polymerization temperature of the mixture, cooling the homogeneous mixture below the threshold polymerization temperature and maintaining the homogeneous mixture quiescent during the polymerization.

Abstract: 1,4,7,10-Tetraazatetracyclo[5.5.1.0.sup.4,13.0.sup.10,13 ]tridecane -tridecane which can reversibly and successively add two moles of acids to form conjugate acids, can be made by condensation of 1,4,7,10-tetraazacyclododecane with ethyl orthocarbonate or by the condensation of 2,3,5,6-tetrahydro-1H-imidazo[1,2-a]imidazole with ethyl bis(2-chloroethyl)carbamate followed by acid hydrolysis. The salts with acids having photographically innocuous anions can be used in developers for silver halide emulsion to reduce fog, and can be used in the emulsions themselves as sensitizers.