Abstract:
The present invention relates to an alkyl glycoside sulfomethylsuccinate having the formula R1—O—Sn—R2 wherein R1 is an alkyl radical having 6 to 30 carbon atoms, S is a monosaccharide moiety, and R2 is a sulfomethylsuccinate moiety. Furthermore the present invention relates to a process for making this alkyl glycoside sulfomethylsuccinate and to an alkyl glycoside itaconate which is a useful intermediate for use in this process. Furthermore the present invention relates to a cosmetic composition comprising the alkyl glycoside sulfomethylsuccinate and to the use of the alkyl glycoside sulfomethylsuccinate for improving the foam stability of a cosmetic composition.
Abstract:
Unsaturated compounds of the general formula (I) where R 1 , R 2 , R 3 are the same or different and are each independently H, CH 3 , R 4 is linear or branched C 1 -C 30 -alkylene, R 5 , R 6 are the same or different and are each independently, H, C 1 -C 20 -alkyl, C 3 -C 15 -cycloalkyl, aryl, -CH 2 -O-C 1 -C 20 -alkyl, -CH 2 -O-C 2 -C 20 -alkenyl, where R5 and R6 may together also form a C 3 -C 6 -alkylene, R 7 is the same or different and is independently H, C 1 -C 4 -alkyl, R 8 is C 1 -C 22 -alkyl, C 2 -C 22 -alkenyl, and n is an integer from 2 to 200. Mixtures and polymers comprising compounds of the general formula (I). A method for preparing polymers wherein a free-radical polymerization of monomers comprising unsaturated compounds of the general formula (I) is carried out. A method for preparing polymers comprising polymer-analogous reactions. The use of polymers containing compounds (I) as cement additives, grinding aids in the production of cement, additive to hydraulic binders, concrete plasticizers, reactive plasticizers for the production of plastics, rubber or latex, associative thickeners and antioxidants, or for the production of polyether siloxanes. Mixtures comprising such polymers.
Abstract:
The invention relates to a preparation for passivating metal surfaces, containing at least one itaconic acid homopolymer or copolymer (A), water and/or another solvent, which is suitable for dissolving, dispersing, suspending, or emulsifying the homopolymer or copolymer (A), as component (B), at least one organic Ti or Zr compound (C), and optionally at least one Zn or Mg salt (D). The invention further relates to a method for producing a passivation layer on a metal surface, characterized in that the metal surface is treated with such a preparation. The invention further relates to a passivation layer on a metal surface that can be obtained by such a method. The invention further relates to a metal surface comprising such a passivation layer. The invention further relates to the use of preparations according to the invention for passivating a metal surface.
Abstract:
The present invention relates to a method for passivating metallic surfaces, wherein the metallic surface is brought into contact with an aqueous composition containing at least one water-soluble polymer (X) that comprises acid groups, and at least one polyamine (P), wherein the pH of the composition is in the range from 0.5 to 2.
Abstract:
The present invention relates to compositions comprising (i) at least one molding compound comprising the components A and B as component (I), where A) means a graft copolymer as component A, and B) means a thermoplastic copolymer as component B; and (ii) at least one cyclohexane polycarbolic acid derivate of the formula (I); as component (II) where R 1 stands for C 1 -C 10 -alkyl or C 3 -C 8 -cycloalkyl, m stands for 0, 1, 2, or 3, n stands for 2, 3, or 4, and R stands for hydrogen or C 1 -C 30 -alkyl; or the group -(COOR) n forms an anhydride of the formula (II), wherein, according to the invention, the component (I) comprises 11 to 19.9% by weight of component A and 80.1 to 89% by weight of component B, wherein each % by weight is based on the sum of components A and B and together adds up to 100% by weight. The invention further relates to a method for producing the composition according to the invention, to the use of the composition according to the invention for producing molded parts, films, foams or fibers, and to molded parts, films, foams or fibers comprising the composition according to the invention.
Abstract:
The invention concerns a process for continuous production of styrene polymers by anionic spray polymerization characterized in that i) styrene and the initiator solution are mixed in a dynamic or static mixer and subsequently spray dispensed, ii) the droplets formed transition from the liquid monomeric state into the molten polymeric state during their free fall in the spray tower, iii) the melt droplets are collected as a melt at the foot of the tower, the melt having a monomer content of below 1%, preferably below 0.1% (
Abstract:
The invention relates to the use of a specific, generically-defined copolymer for stabilising a peroxide compound against decomposition. The invention also relates to a particular embodiment of the copolymer, specifically a copolymer containing repeating units derived from N-vinylpyrrolidone (or from N-vinyl-2-caprolactam) and at least one comonomer selected from the group consisting of vinyl phosphonic acid, 2-acrylamido-2-methylpropane sulphonic acid, and combinations of these monomers.