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1. 发明专利

JPS63156037A OPALESCENT GLASS 失效
公开(公告)号：JPS63156037A
公开(公告)日：1988-06-29
申请号：JP15014987
申请日：1987-06-18
申请人： ASAHI GLASS CO LTD
发明人： YOSHIKAWA MASAAKI , KAMEI FUMIO , OSAWA OSAMU , OGAWA HIDEKI
IPC分类号： C03C3/091 , C03C4/02
摘要： PURPOSE:To obtain an opalescent glass exhibiting opalescent color by reflection, exhibiting also red-yellow color by transmission, by regulating the ratio of (B2O3+CaO)/(Na2O+K2O+Al2O3) and (CaO+BaO)/(Na2O+K2O), respectively among oxides contained in each specified amt. CONSTITUTION:The above described opalescent glass is constituted of 60-75% SiO2, 4-9% Al2O3, 0.5-15% CaO, 0-8% MgO, 0-10% BaO, 5-20% CaO+ MgO+BaO, 3-14% B2O3, 2-13% Na2O, 0-5% K2O, and 2-13% Na2O+K2O, by weight. Further, the compsn. of the opalescent glass is regulated essentially by >=1.2 weight ratio of (B2O3+CaO)/(Na2O+K2O+Al2O3) and >=1.0 ratio of (CaO+BaO)/(Na2O+K2O). This opalescent glass reflects particulary rays of light in the range from near ultraviolet region to visible region effectively, and transmits effectively the rays of light in the range from visible region to neat infrared region. Accordingly, the glass is effective for preventing decoloration and deterioration of interior products due to light such as solar rays in the range from near ultraviolet region to visible region.

2. 发明专利

JPH0710569A PRODUCTION OF FLOATING SHEET GLASS 失效
公开(公告)号：JPH0710569A
公开(公告)日：1995-01-13
申请号：JP18070293
申请日：1993-06-25
申请人： ASAHI GLASS CO LTD
发明人： OGAWA HIDEKI , ISHII ICHIRO , MIYATA TSUNEHIRO
IPC分类号： C03B18/04 , C03B18/06
摘要： PURPOSE:To provide the floating sheet glass having extremely little warpage and microcorrugation by specifying the max. thickness and width of the selvage parts of glass ribbon after cooling to specific values in the process for production of sheet glass while suppressing the reduction the width of the glass ribbon floating on a molten metal bath by pressing plural pairs of top rolls to both selvage parts of the glass ribbon and impressing tension to the glass ribbon in its transverse direction. CONSTITUTION:The shape of the glass ribbon consists of the selvage parts 80 and a central part 81 to be made into a product. The selvage parts 80 consist of parts 82 having the traces of the rolls and the outer side parts 83 thereof. The overall width of the glass ribbon is defined as W, the width of the parts 82 as B, the width of the parts 83 as C, the min. thickness of the central part as D and the max. Thickness of the parts 83 as E. D =3 when 1.0 =(5-2D) when 0.1

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