Nippon Electric Glass Co., Ltd.

Yuki Yokota

Takahiro Matano

Toshikatsu Tanaka

Hiroshi Sawasato

Minoru Matsumoto

Takahiro Takahashi

Shin Tojo

Provided is a LiO—AlO—SiO-based crystallized glass in which a yellowish tint due to TiO, FeOor so on is reduced. The LiO—AlO—SiO-based crystallized glass contains, in terms of % by mass, 40 to 90% SiO, 5 to 30% AlO, 1 to 10% LiO, 0 to 20% SnO, 1 to 20% ZrO, 0 to 10% MgO, 0 to 10% PO, and 0 to below 2% TiO.

Li2O—Al2O3—SiO2-based crystallized glass

The present invention relates to a method of producing a colored glass for a pharmaceutical container by which the transmittance of a glass to be obtained is easily controlled so as to satisfy the standards of the Japanese Pharmacopoeia.

Method for producing colored glass for pharmaceutical containers and colored glass for pharmaceutical containers

Provided is a glass fiber having a low spinning temperature and a low liquidus temperature, and besides, having a large difference between the liquidus temperature and the spinning temperature, and a method of manufacturing the same. The glass fiber of the present invention includes as a glass composition, in terms of mass % on an oxide basis, 50% to 65% of SiO, 0% to 3% of AlO, 0% to 1% of MgO, 0% to less than 0.7% of CaO, 0% to 1% of LiO, 10% to 20% of NaO, 0% to 2% of KO, 6% to 10% of TiO, and 15% to 20% of ZrO, and has a value for (NaO+KO)/(MgO+CaO) of 6.0 or more.

Glass fiber and method for producing same

Provided is a composition for a glass fiber which has a high elastic modulus and satisfactory productivity, and can facilitate the production of a fine-count glass fiber. The composition for a glass fiber of the present invention includes, as a glass composition expressed as a mass percent in terms of oxide, 50% to 70% of SiO, 15% to 25% of AlO, 3% to 13% of MgO, 3% to 15% of CaO, and 0.5% to 5% of BO.

Composition for glass fiber, glass fiber, glass-fiber-containing composite material containing glass fiber, and method for manufacturing glass fiber

An object of the present invention is to provide a less tinted LAS system crystallized glass. In the present invention, a content of each of V and Cr in the LAS system crystallized glass is 0 to 3 ppm and a content of each of Sc, La, Ce, Pr, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ac, Th, Pa, and U is 0 to 10 ppm.

LAS system crystalline glass, LAS system crystallized glass, method for producing LAS system crystalline glass, and method for producing LAS system crystallized glass

Growing community of inventors

Shiga, Japan

Yuki Yokota