摘要:
Functionalized silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating the mixture. The silicas are employed, for example, in solvent-containing coatings.
摘要:
Functionalized, structurally modified silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating, destructuring and grinding the mixture. The silicas are employed in radiation-curing coatings.
摘要:
Radiation-curing coating systems which contain a silanized silica, where the silane is hexamethyldisilazane, 3-methacryloxypropyltrialkoxysilane and/or glycidyloxypropyltrialkoxysilane as the silanizing agent. The radiation-curing coating systems can be used for coating derived timber boards, solid wood, wood veneers, parquet, decorative papers, decorative films, thermoplastics and thermosetting plastics, mineral and polymeric glasses, metals (for example aluminium, high-grade steel, phosphated, chromated and galvanized steel sheets, copper), lacquered surfaces, printing inks and leather.
摘要:
Silanised, structurally modified silicas, characterised by groups fixed on the surface, the groups being alkylsilyl (SiCnH2n+1, with n=2-18). They are produced in that pyrogenically produced silicas are treated with the silanising agent and structurally modified. They are used to improve scratch resistance in lacquers.
摘要翻译:硅烷化的结构改性二氧化硅,其特征在于固定在表面上的基团,所述基团是烷基甲硅烷基(SiCnH 2 n + 1,n = 2-18)。 它们的生产是用热解法生产的二氧化硅用硅烷化剂处理并进行结构改性。 它们用于改善漆中的耐刮擦性。
摘要:
Silanized, structurally modified, pyrogenically produced silicas, characterised by groups fixed to the surface, wherein the groups are dimethylsilyl and/or monomethylsilyl, are produced in that pyrogenically produced silica is treated by a known method with dimethyldichlorosilane and/or monomethyltrichlorosilane, the groups dimethylsilyl and/or monomethylsilyl being fixed on the surface of the pyrogenic silica, and is then structurally modified and optionally post-ground. They are used to improve scratch resistance in lacquers.
摘要:
A surface-modified, aerogel-type, structured silica is produced by spraying an aerogel-type, structured silica with a silanizing agent, post-mixing and conditioning. It can be used as a flatting agent.
摘要:
Surface-modified, doped, pyrogenically produced oxides surface-modified with one or several compounds from the following groups: a) Organosilanes of the type (RO)3Si(CnH2n+1), (RO)3Si(CnH2n−1) b) R′x(RO)ySi(CnH2n+1), (RO)3Si(CnH2n+1) c) X3Si(CnH2n+1), X3Si(CnH2n−1) d) X2(R′)Si(CnH2n+1), X2(R′)Si(CnH2n−1) e) X(R′)2Si(CnH2n+1), X(R′)2Si(CnH2n−1) f) (RO)3Si(CH2)m—R′, g) (R″)x(RO)ySi(CH2)m—R′, h) X3Si(CH2)m—R′, i) (R)X2Si(CH2)m—R′, j) (R)2XSi(CH2)m—R′, k) Silazanes of the type l) Cyclic polysiloxanes, m) Polysiloxanes or silicone oils.
摘要:
Granules based on titanium dioxide with the characteristics: Average particle diameter: 10 to 150 &mgr;m BET surface area: 25 to 100 m2/g pH: 3 to 6 Compacted density: 400 to 1,200 g/l The granules are prepared by dispersing titanium dioxide in water, spray-drying and silanizing. In the silanized form, the granules have the following characteristics: Average particle diameter: 10 to 160 &mgr;m BET surface area: 15 to 100 m2/g pH: 3.0 to 9.0 Compacted density: 400 to 1,200 g/l Carbon content: 0.3 to 12.0 wt. % The granules are used, inter alia, as catalyst supports, in cosmetics, as sun screens, in silicone rubber, in toning powder, in lacquers and colorants, as grinding and polishing agents and as a raw material for producing glass and ceramics.
摘要:
The present invention relates to cosmetic compositions comprising, as solid particles, silicone methacrylate particles which are obtainable by the steps a) producing an emulsion of water and an organic phase, where the organic phase comprises specifically organopolysiloxanes modified in the terminal and/or lateral position with methacrylate groups, or mixtures thereof, with the addition of at least one emulsifier and optionally one or more coemulsifiers, where the organic phase forms the internal phase of the emulsion, and fully polymerizing the internal phase in the presence of a radical initiator, which is added to the external phase (aqueous phase) in a concentration of from 0.1 to 40% by weight based on the internal phase, and also to corresponding cosmetic compositions.
摘要:
Fumed silanized silica with the following physico-chemical data: Grindometer value less than 20 μm Tamped density 25 to 85 g/l is prepared by grinding fumed silica which has been silanized. It can be used in silicone rubber.