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Expired
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GB3291858A
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Philips Electrical Industries Ltd
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Philips Electrical Industries Ltd
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Publication of GB908058ApublicationCriticalpatent/GB908058A/en
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
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Chemical & Material Sciences
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Physics & Mathematics
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Engineering & Computer Science
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Materials Engineering
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Organic Chemistry
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Glass Compositions
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Abstract
908,058. Quartz glass. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 15, 1958 [Oct. 18, 1957], No. 32918/58. Drawings to Specification. Class 56. A quartz glass article is heated in a non- reducing atmosphere to a temperature of 1050- 1400‹ C. and preferably 1100-1250‹ C., whereby light absorption in the ultra-violet region is reduced. Specification 403,898 is referred to.
GB3291858A1957-10-181958-10-15Improvements in or relating to methods of manufacturing articles from quartz glass
ExpiredGB908058A
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