摘要:
Surface-modified zinc oxides with a BET surface area of 18±5 m2/g and a C content of 0.1 to 5.0 wt. % are prepared by spraying the zinc oxides with the surface-modifying agent or adding this in vapour form and then heat-treating the mixture. They can be employed for the preparation of cosmetics.
摘要:
Pyrogenically prepared, surface-modified, structurally modified titanium dioxides and pyrogenically prepared, surface-modified, structurally modified titanium dioxide mixed oxides are prepared by structurally modifying and then surface modifying the titanium dioxide or titanium dioxide mixed oxide. The titanium dioxides can be used to produce sunscreen formulations.
摘要:
Surface-modified, pyrogenically prepared titanium dioxides coated with silicon dioxide are prepared by spraying the pyrogenically prepared titanium dioxides coated with silicon dioxide with a surface-modifying agent and then tempering them. They can be used in sun protection formulations.
摘要:
Pyrogenically prepared surface-modified silicon dioxide-titanium dioxide mixed oxides are prepared by spraying pyrogenically prepared silicon dioxide-titanium dioxide mixed oxides with a surface-modifying agent. The surface-modified pyrogenically prepared silicon dioxide-titanium dioxide mixed oxides can be used in sun protection formulation
摘要:
A single-piece optical fiber coupling (1) is specified which has a housing (2) with at least two holder openings (3a, 3b), which are arranged coaxially and run towards each other, for the optical fiber ends (4a, 4b) to be connected, the holder openings (3a, 3b) each having an outer section (3c, 3d) with a threaded crimp (3g) and an inner section (3e, 3f) with a thread (3h) of lower depth.
摘要:
Surface-modified, pyrogenically produced aluminum oxide which has the following physico-chemical properties:______________________________________ Surface (m.sup.2 /g) 50 to 150 Stamping density (g/l) 50 to 90 Drying loss (%)
摘要:
Surface-modified, pyrogenically produced titanium dioxide which is has the following physico-chemical properties:______________________________________ Surface (m.sup.2 /g) 5 to 120 Stamping density (g/l) 50 to 250 Drying loss (%)
摘要:
The present invention relates to silicone (meth)acrylate particles, to a process for preparing such silicone (meth)acrylate particles including the steps of: a) obtaining an emulsion composed of water and an organic phase comprising organopolysiloxanes modified terminally and/or laterally with acrylate groups, and b) polymerizing the inner phase to completion by means of a free-radical initiator, the free-radical initiator being added to the outer phase (aqueous phase) in a concentration of 0.1 to 40% by weight based on the inner phase, and to the use of the particles alone or in a mixture with further particles, pigments and/or further customary additives in the form of powders or dispersions in coating, adhesive or sealant materials, in polymers, in defoamers, in wetting and levelling aids, in cosmetic or pharmaceutical formulations and care products, in cleaning and detergent compositions, or in applications for modifying the interface properties of solid and liquid substrates, for example tactile properties, hydrophobization, or sliding and/or release properties.
摘要:
The invention relates to emulsifier systems containing ester-modified, polyether-free organopolysiloxanes, to their use, in particular the production of cosmetic, dermatological or pharmaceutical formulations and also of care and cleaning compositions, and also the products themselves produced with the help of the emulsifier systems.