Fireproof glass

Details Fireproof glass Fireproof glass

1977-10-27

1979-10-30

Willis, Jr., P. E.

Stock material or miscellaneous articles

Surface property or characteristic of web, sheet or block

Surface modified glass

52171, 65 33, 428920, B32B 1700, C03B 3200

Patent

active

041729218

ABSTRACT:
Fireproof glass, in a form suitable for use as windowpanes, which will withstand heating in accordance with DIN (German Industrial Norm) 4102 (1970 edition), standard temperature curve I, and having a compressive prestress in the peripheral portion thereof. The glass, is such that the product of the thermal expansion coefficient, .alpha., and the modulus of elasticity, E, is 1 to 5 kp.times.cm.sup.-2 .times..degree.C..sup.-1, and which tend to surface crystallization.

REFERENCES:
patent: 3107196 (1953-10-01), Acloque
patent: 3282770 (1966-11-01), Stookey et al.
patent: 3673049 (1972-06-01), Giffen et al.
patent: 3778338 (1973-12-01), Murphy et al.
patent: 3779856 (1973-12-01), Pirooz
patent: 3907577 (1975-09-01), Kiefer et al.
patent: 3931438 (1976-01-01), Beall et al.
patent: 3984252 (1976-10-01), Kiefer

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