Method for making a multi-pane thermally insulating construction

摘要

A method for substantially preventing the escape of argon gas from a chamber defined by two window panes in spaced relation and spacing means between the inner edge surface portions of the window pane by: forming a seal at the edge portions of the spacing means of a liquid polymer composition composed of (a) from about 90 mole percent to about 25 mole percent of thioether mercaptan terminated disulfide polymer of the formula HS(RSS)mR'SH; (b) from about 10 mole percent to about 75 mole percent of diethyl formal mercaptan terminated polysulfide polymer of the formula HS(RSS)nRSH; wherein in the formulae R is -C2H4-O-CH2H4-; R' is alkyl thioether of from 4 to 20 carbon atoms and the value of m and n is such that the diethyl formal mercaptan terminated polysulfide and the thioether mercaptan terminated disulfide polymer have an average molecular weight of between about 1000 and about 4000; and (c) a curing effective amount of a curing agent; curing said liquid polymer composition to a solid elastomer which is substantially impervious to argon gas; and filling the chamber with argon gas.