Abstract: New oximsulfonate compounds of the formulae I or II, ##STR1## wherein m is 0 or 1; x is 1 or 2; R.sub.1 is, for example phenyl, which is unsubstituted or substituted or R.sub.1 is a heteroaryl radical that is unsubstituted or substituted, or, if m is 0, R.sub.1 additionally is C.sub.2 -C.sub.6 alkoxycarbonyl, phenoxycarbonyl or CN; R'.sub.1 is for example C.sub.2 -C.sub.12 alkylene, phenylene; R.sub.2 has for example one of the meanings of R.sub.1 ; n is 1 or 2; R.sub.3 is for example C.sub.1 -C.sub.18 alkyl, R'.sub.3 when x is 1, has one of the meanings given for R.sub.3, or R'.sub.3 in the formula IV and when x is 2 in the formula 1, is for example C.sub.2 -C.sub.12 alkylene, phenylene; R.sub.4 and R.sub.5 are independently of each other for example hydrogen, halogen, C.sub.1 -C.sub.6 alkyl; R.sub.6 is for example hydrogen, phenyl; R.sub.7 and R.sub.8 are independently of each other for example hydrogen or C.sub.1 -C.sub.12 -alkyl; R.sub.9 is for example C.sub.1 -C.sub.12 alkyl; A is S, O, NR.sub.

Abstract: Compounds of the formula I or I' ##STR1## in which R.sub.1 and R.sub.2 independently of one another, for example, are an aromatic hydrocarbon, with the proviso that the aromatic hydrocarbon radical is substituted in at least one o-position, or R.sub.1 and R.sub.2, for example, independently of one another are C.sub.1 -C.sub.20 alkyl, which is substituted by R.sub.9 R.sub.10 R.sub.11 Si; R.sub.2a is, for example, a divalent aromatic hydrocarbon radical; R.sub.3 is C.sub.1 -C.sub.20 alkyl which is substituted by R.sub.9 R.sub.10 R.sub.11 Si or is an aromatic hydrocarbon; R.sub.4 is, for example, C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.6 alkyl; E is R.sub.14 R.sub.15 R.sub.16 P or R.sub.8 R.sub.8a R.sub.7 N; R.sub.7, R.sub.8 and R.sub.8a and R.sub.9, R.sub.10 and R.sub.11 independently of one another are, for example, C.sub.1 -C.sub.12 alkyl; R.sub.14, R.sub.15 and R.sub.

Abstract: The invention relates to photopolymerizable compositions comprising as photoinitiator a borate of the formula I or I' ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 are, for example and independently of one another, phenyl or another aromatic hydrocarbon, with or without any heteroatoms, which radicals are unsubstituted or are substituted, or the radicals R.sub.1 and R.sub.2 form bridges to produce structures of the formulae II, IIa or IIb ##STR2## with the provisos that not more than two of the radicals R.sub.1, R.sub.2 and R.sub.3 are identical and either at least two of the radicals R.sub.1, R.sub.2 and R.sub.3 are aromatic hydrocarbon radicals or phenyl radicals which are substituted in both ortho-positions or at least one radical R.sub.1, R.sub.2 or R.sub.3 is a sterically bulky aryl radical and the remaining radicals of R.sub.1, R.sub.2 and R.sub.3 are aromatic hydrocarbon radicals or are phenyl radicals which are substituted in at least one ortho-position; R.sub.4 is, for example, phenyl or C.sub.1 -C.

Abstract: Compounds of the formula I ##STR1## in which n and o are a number from 0 to 50, m is a number from 1 to 50, u and v are 0 or 1, and at least one of the indices u and v is 1, R.sub.1, R.sub.2, R.sub.2a, R.sub.3 and R.sub.4 independently of one another are, for example, aromatic hydrocarbons, R.sub.5, if n and o are 0, is for example C.sub.1 -C.sub.12 alkyl and, if n and/or o are greater than 0, or if n and o are 0 and at the same time only one index u or v is 1, R.sub.5 may additionally, for example, be an aromatic hydrocarbon, at least one of the radicals R.sub.1, R.sub.2, R.sub.2a, R.sub.3, R.sub.4 and R.sub.5 being an aromatic hydrocarbon radical which is sterically hindered ortho to the boron atom, X is, for example, C.sub.1 -C.sub.20 alkylene, phenylene, biphenylene, etc., and Z is a radical which is able to form positive ions, are suitable as photoinitiators, both the compounds per se and their combination with dyes or other electron acceptors.

Abstract: An emergency ring of elastic material for a vehicle wheel having a one-piece deep bed rim comprises a one-piece annular support body, which via support rings are supported exclusively on the rim bed of the wheel and is spaced apart from at least one side wall region or of a pneumatic tire. Reinforcement inlays are disposed radially such that there is only relatively little compressible elastic material within the reinforcement inlays. High security against rotation of the emergency ring relative to the rim is thereby assured. Moreover, the emergency ring is easily mounted and provides great security against a tire being thrown off, even when cornering with tires with low air pressure.

Abstract: A friction clutch wherein the prongs of the diaphragm spring are formed with half spoon-shaped vanes each of which is adjacent to one edge face of the respective prong and serves to circulate air when the spring rotates. Each prong is further formed with a reinforcing rib which extends radially outwardly from the respective vane and into the ring-shaped main section of the spring. The ribs stiffen the prongs and prevent them from bending during actuation of the clutch, namely while the tips of the prongs are pushed or pulled in a direction to relax the bias of the spring upon the pressure plate of the clutch.