Method of making infrared reflective glass sheet-I

Details Method of making infrared reflective glass sheet-I Method of making infrared reflective glass sheet-I

1985-02-25

1985-10-15

Hoffman, James R.

Coating processes

Coating has x-ray, ultraviolet, or infrared properties

65 602, 427109, 427110, 427166, 427168, C03C 1722

Patent

active

045474001

ABSTRACT:
This disclosure is directed to a method of making an infrared reflective glass sheet. The method has the following steps. The glass sheet formed of soda/lime silica glass is selected. The glass sheet is heated to a temperature in a range from 900.degree. to 1100.degree. F. If desired, the sheet glass selected may be selected at the time it is being manufactured in a glass manufacturing operation and it would have upon leaving a process such as a float process a temperature in a range of 900.degree. to 1100.degree. F. An organic/metallic ion-containing, chlorine-free compound is applied to a surface of the glass sheet. Application of this compound forms a metallic oxide seal coating on the surface of the glass sheet. A coating of tin oxide is applied to the metal oxide seal coating. The coating of tin oxide is formed from the decomposition of butyltin trichloride. The glass sheet is cooled to room temperature after application of the metal oxide seal coating and the tin oxide coating thereon.

REFERENCES:
patent: 4144362 (1979-03-01), Larkin
patent: 4419386 (1983-12-01), Gordon
patent: 4440822 (1984-04-01), Gordon

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