[Sabine Zeizinger, Horst Berndsen, Frank Friedel, Manfred Meurer, Michael Westholt] DE Duisburg The present invention relates to a method for the manufacture of galvannealed metal sheet, wherein a hot strip is produced from an IF steel containing 0.01 to 0.1 wt. % silicon, wherein the hot strip is coiled at a coiler temperature no lower than 700° C. and no higher than 750° C., wherein a cold strip is rolled from the coiled hot strip, wherein the cold strip is recrystallisation-annealed in an annealing furnace in an annealing gas atmosphere, wherein the cold strip thus annealed is provided with a zinc coating in a zinc bath, and wherein the coated cold strip is post-annealed at a galvannealing temperature no lower than 500° C. and no higher than 540° C. The invention also relates to a galvannealed metal sheet which possesses improved adhesion of the coating layer to the base material and proposes a method which is suited for the manufacture of metal sheet having such properties.

[MEYER, Jürgen, ZEIZINGER, Horst, SCHOLZ, Mario, ELLENBRAND, Uwe] Rellinghauser Strasse 1-11 45128 Essen;Grossostheimer Str. 51 63811 Stockstadt;Wilhelminenstr. 26 63456 Hanau;Weinbergstr. 35 63584 Gründau;Spessartstr. 5 36396 Steinau The present invention relates to a hydrophobic, fumed silica which is obtained by reacting fumed silicas with cyclic polysiloxanes of the type -[0-SiR2]n-, where R is a C1to C6 alkyl group and n is 3 to 9, and subsequently milling the silanized silicas obtained, and to a process for the preparation of the silica according to the invention, and to silicone rubber materials containing the silica according to the invention.

[MEYER, Jürgen, SCHOLZ, Mario, ZEIZINGER, Horst, ELLENBRAND, Uwe] Rellinghauser Strasse 1-11 45128 Essen;Grossostheimer Str. 51 63811 Stockstadt;Weinbergstr. 35 63584 Gründau;; The present invention relates to a hydrophobic, fumed silica which is obtained by milling a fumed silica which has fixed dimethylsilyl and/or monomethylsilyl groups on the surface due to silanization; and to a process for the preparation of the silica according to the invention, and to silicone rubber materials containing the silica according to the invention.

[ZEIZINGER, Sabine, BERNDSEN, Horst, FRIEDEL, Frank, MEURER, Manfred, WESTHOLT, Michael] Kaiser-Wilhelm-Strasse 100 47166 Duisburg;Grabenstrasse 42 47057 Duisburg;Wiesenstrasse 33 47161 Duisburg;Peter-Vischer-Strasse 11 a 47447 Moers;Johannes-Laers-Strasse 57 a 47495 Rheinberg;Hubertus Strasse 50 44577 Castrop The present invention relates to a method for producing electroplating annealed thin sheets wherein a hot-rolled strip is produced from IF steel (solid solution interstitial element free steel) containing 0.01-0.1 weight % of silicon. Said hot-rolled strip is coiled at a coiling temperature not less than 700 °C and not more than 750 °C. A cold-rolled strip is rolled from said hot-rolled strip, coiled and annealed up to recrystallization in an annealing furnace, in a hot gas atmosphere. Thus annealed cold-rolled strip is coated with a zinc coat in a zinc bath then reannealed at an electroplating temperature not less than 500 °C and not more than 540 °C. The present invention further relates to an electroplating annealed thin sheet with a coating layer having better adhesion on the base material, as well as a method adapted to thin sheet production according to said invention.

[SCHOLZ, Mario, MEYER, Jürgen, ZEIZINGER, Horst, BUCKEL, Pia] Rellinghauser Strasse 1-11 45128 Essen;Weinbergstr. 35 63584 Gründau;Grossostheimer Str. 51 63811 Stockstadt;Wilhelminenstr. 26 63456 Hanau;Mühlbachstr. 25 63486 Bruchköbel The invention provides an adhesive comprising structurally modified, pyrogenically prepared silicas containing on their surface organosilane groups of the formula (I) SiCnH(2n+1), where n is 2 to 18. The invention further provides for the use of these structurally modified, pyrogenically prepared silicas in adhesives.