Abstract: Polyquaternary compounds, a process for the preparation thereof and the use thereof as adjuvants to improve the washing fastness of cellulose fabrics or fibres dyed with direct or reactive dyes.

Abstract: Compounds of the general formula I ##STR1## wherein R--R.sub.4 are as defined in the description, have stabilizing activity against UV radiation and are useful in cosmetics and dermatology.

Abstract: S-triazine derivatives of formula (I): ##STR1## a process for the preparation thereof and the use thereof as light stabilisers.

Abstract: A crosslinked acrylic acid polymer or crosslinked acrylic acid copolymer consisting of at least 80% of acrylic acid and containing less than 5 ppm of methylene chloride obtained by a process comprising the radicalic polymerization of monomers in a solvent mixture consisting of a mixture of methylene chloride and a carboxylic ester having formulaR--COO--R.sub.1wherein R is hydrogen, methyl or ethyl group, R.sub.1 is C.sub.1 -C.sub.3 alkyl group, wherein said solvent mixture consists of 60-75% v/v of methylene chloride and 40-25% v/v of carboxylic ester, or, alternatively, dimethyl or diethylcarbonate is used instead of the carboxylic ester, together with a cross-linking agent, in an amount from 0.3 and 4% w/w, calculated on the monomer, and an appropriate free radical initiator as catalyst at a temperature ranging from 35.degree. C. and reflux temperature. The polymers and copolymers are useful as thickening agents for cosmetic and pharmaceutical formulations.

Abstract: Benzofuran derivatives of formula (I) ##STR1## in which R is alkyl, cycloalkyl, aralkyl or a divalent residue which is in its turn linked to a residue which can be obtained from (I) by removing R, highly absorb the sunlight radiations in the UVA region and, in combination with UVB sunscreens, they effectively protect the skin from noxious sunlight radiations.

Abstract: S-triazine derivatives of formula (I): ##STR1## a process for the preparation thereof and the use thereof as light stabilisers.