Originally made from borosciliate glass (but now formulated from tempered soda-lime glass), under what brand name did Owens Corning introduce their heat resistant glass in 1915?
Borosilicate glass to completely different purposes. Most common today is borosilicate 3.3 glass such as Duran, International Cookware's Pyrex, NIPRO BSA 60, and BSC 51. The European manufacturer of Pyrex, International Cookware, still uses borosilicate glass in its Pyrex glass kitchen products, but the U.S. manufacturer of Pyrex kitchenware now uses tempered soda-lime glass. Thus Pyrex can refer to either soda-lime glass or borosilicate glass when discussing kitchen glassware, while Pyrex, Bomex, Duran, TGI and Simax all refer to borosilicate glass when discussing laboratory glassware. The real difference is the trademark and the company that owns the Pyrex name. The original Corning
Soda–lime glass and temperature is largely logarithmic, with an Arrhenius equation strongly dependent on the composition of the glass, but the activation energy increases at higher temperatures. The following table lists some physical properties of soda–lime glasses. Unless otherwise stated, the glass compositions and many experimentally determined properties are taken from one large study. Those values marked in "italic" font have been interpolated from similar glass compositions (see calculation of glass properties) due to the lack of experimental data. Soda–lime glass Soda–lime glass, also called soda–lime–silica glass, is the most prevalent type of glass, used for windowpanes and glass containers (bottles and