摘要:
New spray powder formulations are described which, after application in the form of a thin layer to substrate surfaces with the aid of processes basset on electrostatic attraction and storing of this layer by heat or high-energy radiation, allow the deposition of firmly adhering layers of metal by currentless, wet-chemical metallization. The essential constituents of such a formulation are a pulverulent, non-conductive material and (semi-) noble metal compounds.
摘要:
After pyrolysis of N-.alpha.-methoxyethyl-O-methylurethane, it is possible to obtain very pure O-methyl-N-vinylurethane by cooling the pyrolysate and separating off the crystalline product. After separating off the O-methyl-N-vinylurethane, it is possible to react the mother liquor with methanol in the presence of bases and then to pass the reaction product to another pyrolysis.
摘要:
New naphthalimides, useful as additives in toners for controlling the charge and conductivity, of the formula ##STR1## in which R represents C.sub.1 - to C.sub.22 -alkyl,R.sup.1 and R.sup.2 independently of one another in each case represent C.sub.1 - to C.sub.4 -alkyl, or R.sup.1 and R.sup.2, together with the nitrogen atom in between, form a pyrrolidine, piperidine or morpholine ring,n represents 2 or 3 andX.sup..crclbar. represent one equivalentof a benzoate or naphthoate, which is optionally substituted by chlorine, bromine, methyl, methoxy, hydroxyl, cyano and/or hydroxycarbonyl,of a benzenesulphonate which is substituted by hydroxyl, amino or nitro,of a naphthalenesulphonate which is optionally substituted by hydroxyl, amino or a sulphonic acid group, orof a fluorine-substituted anion of a C.sub.4 - to C.sub.18 -alkanecarboxylic or -alkanesulphonic acid.