Oblon, Spivak, McClelland, Maier & Neustadt
Fire-resistant glass and process for production thereof
 A fire-resistant glass comprising: (a) at least two plate-shaped vitreous materials arranged parallel and apart, the sides of the plate-shaped vitreous materials facing each other being treated with a silane coupling agent, (b) a spacer provided between the plate-shaped vitreous materials at their peripheries via an adhesive, (c) a sealing agent adhered to the outer surface of the spacer, and (d) an aqueous gel filled into the space formed by the plate-shaped vitreous materials and the spacer, the aqueous gel comprising a poller of a particular (meth)acrylamide derivative, a particulate metal oxide, an aqueous medium and an antifreezing agent. This fire-resistant glass has an excellent fire-resistant property, is stable over a long period of time and is unsusceptible to deterioration. 
Central Glass Company, Limited Mitsui Toatsu Chemicals, Incorporated
Y Y B Y Y Y Y E Y C
Y10T Y10T B32B Y10T Y10T Y10S Y10S E06B Y10S C09K
additional additional inventional additional additional additional additional inventional additional inventional
Takao Takashi Chikara Hitoshi Hiroshi Toshihiro Takeshi Kunio
Takebayashi Abe Hashimoto Yamashita Itoh Yoshimura Hisanaga Nakata