Abstract: The invention relates to the addition of dyes to aerobically curable adhesive compositions based on free-radically polymerizable compounds. The dyes serve as user-friendly indicators for monitoring the oxygen intake required to trigger the polymerization. The indicator dyes are especially suitable for aerobically adhesive compositions which contain activator systems for forming peroxides upon contact with air. Suitable dyes and indicators are those whose color change in aqueous solution lies within a pH range from 3.0 to 6.5.

Abstract: The present invention relates to a skin lightening composition comprising (a) a safe and effective amount of a compound of formula (I): wherein Z is Oxygen or Sulfur, (b) an average polarity solvent, (c) a polyhydric alcohol, (d) a solid fatty alcohol, (e) a nonionic surfactant, (f) water, and (g) lecithin wherein at least a portion of the above components (a), (b), (c), (d), (e), (f) and (g) forms a liquid crystal.

Abstract: Dimer alcohol bis-sulfates, trimer alcohol tris-sulfates and ether sulfates thereof are prepared by reacting dimer alcohols, trimer alcohols, or alkylene oxide adducts thereof with a sulfating agent, and then neutralizing the reaction product with an aqueous base material.

Abstract: The invention pertains to a method for preparing 8-alpha,12-oxido-13,14,15,16, -tetranorlabdane by cyclizing a mixture of hydroxy-olefins (I)-(III. See the specification for their formulae. The cyclization is carried out in the presence of 10 to 100 wt. % acid, relative to the mixture of compounds (I) to (III).

Abstract: An oxidative coloring composition for coloring human hair cointaining an oxidation dye precursor in a water-containing carrier, wherein the dye precursor comprises 1,2,3,4-tetrahydroquinoxalines corresponding to formula (I): ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 independently of one another represent hydrogen, C.sub.1-4 alkyl groups, benzyl groups, 2-phenylethyl groups or C.sub.2-4 hydroxyalkyl groups and X, Y and Z represent hydrogen, fluorine, chlorine, bromine or iodine atoms or C.sub.1-4 alkyl groups, and wherein at least one of the groups X, Y and Z is hydrogen.

Abstract: The invention relates to a process for producing 8.alpha.,12-oxido-13,14,15,16-tetranorlabdane through the cyclizing dehydration of 8.alpha.,12 -dihydroxy-13,14,15,16-tetranorlabdane in the presence of aluminophyllosilicates.

Abstract: In a process for the production of 8.alpha.,12-oxido-13,14,15,16-tetranorlabdane by dehydration of 8.alpha.,12-dihydroxy-13,14,15,16-tetranorlabdane (diol), wherein the diol is subjected to cyclizing dehydration in the presence of 5 to 80% by weight, based on the diol, of at least one alumino layer silicate selected from K catalysts which have an acid charge of less than 100 mval/100 g.

Abstract: An oxidation dye composition for keratin fibers containing component A and component B wherein component A is an oxidation dye precursor indoline derivative of the formula I: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 is hydrogen or an alkyl group having from 1 to 4 carbon atoms; each of R.sup.4 and R.sup.5 is hydrogen or an alkyl group having from 1 to 4 carbon atoms or together with the oxygen atom to which they are attached represent an alkylenedioxy group containing 1 to 4 carbon atoms; or a salt thereof; and wherein component B is a metal salt having a non-oxidizing anion selected from the group consisting of a lithium, magnesium, calcium, aluminum and a zinc salt.

Abstract: Process for the production of 5,6-dihydroxyindolines by ether cleavage of corresponding ether procursors with aqueous hydrogen bromide and subsequent direct crystallization from the aqueous reaction mixture.