Nippon Steel Corporation

Nippon Steel Sumitomo Metal Corporation

Kowa Chemical Industry Ltd.

Koji Kono

Kiyoshi Sawano

Akira Nishihara

Tomohide Takeuchi

Takeo Okano

Yukio Terakawa

Kiyoshi Kikuchi

Yuki Matsutani

Toshimitsu Kurihara

Tetsunori Ikebe

An insulating monolithic refractory material having sufficient curing strength and usable time ensured and exhibiting excellent stability at high temperature. The insulating monolithic refractory material comprises a binder and a refractory raw material; a bulk specific gravity thereof is 0.8 to 1.8 when a kneaded mixture of the insulating monolithic refractory material with water is cured at normal temperature for 24 hours and then dried at 110&#xb0; C. for 24 hours; the binder comprises a calcium aluminate cement including CaO and AlOas chemical components and a strontium aluminate cement including SrO and AlOas chemical components; and on the basis of 100% by mass as a total mass of the binder and the refractory raw material, a content of the strontium aluminate cement is 2 to 10% by mass, and a content of CaO derived from the calcium aluminate cement is 1 to 12% by mass.

Insulating monolithic refractory material

The present invention relates to a ceramic plate material for side dams of a twin-drum strip caster, the ceramic plate material containing Al of 9 mass % or more in terms of Al equivalent and having the properties of; bending strength at room temperature of not less than 120 MPa, bending strength at 1,000&#xb0; C. of not less than 65 MPa, hardness (Hv) of 50 to 350, fracture toughness Kat 1,000&#xb0; C. of not less than 1 MPa&#xb7;m, thermal conductivity in the temperature range from room temperature to 1,000&#xb0; C. of not more than 8 W/(m&#xb7;K), thermal shock resistance index R' of not less than 800 W/m, and wettability with molten steel (contact angle &#x3b8;) of not less than 120&#xb0;: and allows molten stainless steel to be continuously cast for a long period of time.

Ceramic plate for side weir of twin drum type continuous casting apparatus

Novel coating compositions for architectural use are provided, which include a quaternary ammonium silicate having a silica content of 10 to 60% by weight and a liquid epoxide resin, besides the conventional ingredients, such as pigments, fillers, aggregates and water, and which are particularly capable of producing films having excellent adherency to mortar or concrete surfaces. If a stabilized silica sol is added to the compositions, films produced therefrom have much improved resistance to water at low temperatures as well as freeze-thaw stability.

Coating compositions for architectural use

Growing community of inventors

Tokyo, Japan

Koji Kono