Abstract: Process for the preparation of aryloxy-benzoic acids containing a sulphonamide group by the direct reaction of a phenoxy-benzoic acid with a sulphonamide, in the presence of a halogenating agent such as P(O)Cl.sub.3.

Abstract: New dialkyl esters of monoperoxyoxalic acid which have a tertiary alkyl group in the perester part of the molecule while the other alkyl group is a long-chain, primary alkyl group. The compounds give rise to radicals at heating and are useful as initiators for the polymerization of ethylenically unsaturated monomers, particularly for the polymerization of vinyl chloride.

Abstract: Disclosed are products derived from the reaction of amine or metal salts of N,N-diorganodithiocarbamic acids with alkylthiosulfinyl halides. These compositions are useful as antioxidants and antiwear additives in lubricating oil compositions.

Abstract: Peresters of the formula: R.sub.1 Ar COOOR wherein R is an alkyl group; Ar is selected from the group including phenyl (unsubstituted or substituted) groups, naphthyl groups, anthryl groups, pyryl groups, phenanthryl groups, or heterocyclic groups; and R.sub.1 is any group absorbing radiation between 250 and 800 nm such that R.sub.1 produces an excited state of sufficient lifetime to cause the decomposition to free radicals of the appended perester or peroxidic function.

Abstract: A method of preparing a compound useful as a brightener in aqueous copper electroplating solutions comprising reacting a compound of the following formula: ##STR1## with a compound of the formula:HS--R.sub.2 --Z.sub.nwherein:R.sub.1 and R.sub.2 each is an alkyl containing from 2 to 8 carbon atoms, an aryl, an alkylaryl, an arylalkyl or a heterocyclic group containing at least one nitrogen atom in its ring;X, Y and Z each is hydrogen or a water-solubilizing group; andn is an integer of from 1 to 4; provided that:when R.sub.1 is a heterocyclic group, X, Y and Z are hydrogen and R.sub.2 is an alkyl containing from 2 to 8 carbon atoms, an aryl, an alkylaryl or an arylalkyl;when R.sub.2 is a heterocyclic group, X, Y and Z are hydrogen and R.sub.1 is an alkyl containing from 2 to 8 carbon atoms, an aryl, an alkylaryl or an arylalkyl;when X or Y is a water-solubilizing group, R.sub.

Abstract: Photopolymerization initiators of the general formula: ##STR1## wherein R.sub.1 and R.sub.1 ' independently stand for a tertiary alkyl group or a tertiary aralkyl group and R.sub.2 and R.sub.2 ' independently stand for a hydrogen atom, a tertiary alkoxy group, or a tertiary aralkyloxy group are disclosed. They are useful for effecting polymerization of radically polymerizable unsaturated compounds. Tetra peroxy esters of benzophenone are preferred.

Abstract: Peresters of the formula: ROOC--R.sub.1 --COOOR wherein R is an alkyl group; R.sub.1 is selected from the group including ketone (unsubstituted or substituted) groups, and R.sub.1 is any group absorbing radiation between 250 and 800 nm such that R.sub.1 produces an excited state of sufficient lifetime to cause the decomposition to free radicals of the appended perester or peroxidic function.

Abstract: This disclosure relates to novel peroxy esters carrying a t-alkenyl, e.g. 2-methyl-3-butene-2-yl, peroxy group. These peroxy esters have shorter half-life periods of decomposition and are more reactive polymerization initiators and unsaturated polyester resin curing agents than the corresponding prior art peroxy esters carrying a t-alkyl, e.g. t-amyl, peroxy group.

Abstract: Compounds represented by the formula: ##STR1## wherein R.sup.1 is alkyl, aralkyl, alkoxyalkyl, alkenyl, alkynyl, carboxyalkyl or carboxyaryl;R.sup.2 is any group which does not cause spontaneous decomposition of the peroxy group; andx and y are integers between 0 and 4 with x+y great than or equal to 1, are disclosed.The inventive compounds are useful as visible and UV photoinitiators and as thermal or chemical initiators for curing compositions of ethylenically unsaturated monomers and prepolymers.