Corning Incorporated

Other

Saint-gobain Vitrage

Corning S.a.

Corning Europe, Inc.

Daniel L Ricoult

Yves Andre Brocheton

Michel Prassas

Marie J Comte

Paul L Netter

Pascale Laborde

Nathalie El Khiati

Nathalie Dideron

Gerard R Boury

Stephan L Gunov

Daniel R Harvey

The invention relates to a glass composition intended for the manufacture of thermally stable substrates or panes, which comprises the following constituents in the following proportions by weight:

Silica-soda-lime glass compositions and their applications

Glasses with a high refractive index and their use as segments of

This invention is directed to the production of glasses useful for ophthalmic applications which exhibit excellent resistance to the development of coloration upon being exposed to x-radiation and excellent resistance to the development of solarization. The glass compositions are essentially free of lead and consist essentially, in weight percent, of

Colorless ophthalmic glasses

This invention is directed to photochromic glasses which darken to a brown coloration upon exposure to actinic radiation, which glasses have a refractive index of about 1.6, an Abbe number between 42-47, a density less than 2.82 g/cm.sup.3, and are preferably essentially free of TiO.sub.2. The glass compositions consist generally, in weight percent, of:

High index brown photochromic glasses

This invention is directed to the production of lead-free enamels containing finely-divided glass particles, finely-divided pigment particles, and an organic binder wherein the glass particles consist essentially, expressed in terms of weight percent on the oxide basis, of

Lead-free enamel compositions for the decoration of low-expansion

This invention is principally directed to the preparation of transparent glass-ceramic articles which, when very rapidly crystallized in situ from precursor glass articles in plate form, exhibit very minimal distortion. The glass-ceramic articles contain .beta.-quartz solid solution as the predominant crystal phase and consist essentially, in weight percent, of

Transparent glass-ceramic articles

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Palaiseau, France

Daniel L Ricoult