Stock material or miscellaneous articles – Hollow or container type article – Glass – ceramic – or sintered – fused – fired – or calcined metal...
Patent
1988-05-18
1989-02-28
Dawson, Robert A.
Stock material or miscellaneous articles
Hollow or container type article
Glass, ceramic, or sintered, fused, fired, or calcined metal...
52171, 52304, 156104, 156107, 156109, 156327, 428419, E06B 366
Patent
active
048084522
ABSTRACT:
A multi-pane thermally construction in which one or more chambers are provided by two or more spaced argon gas and permeable transparent panes are filled with argon gas, said panes having inner edge margins, which includes the combination of: spacing means for spacing said means at said inner edge margins, and a seal having low permeability to argon gas between said spacing means and each of said inner edge margins, said seal comprising a solid elastomer of a cured polymer composition composed of thioether mercaptan terminated disulfide polymer of the formula HS(RSS).sub.m R'SH; (b) from about 10 mole percent to about 75 mole percent of diethyl formal mercaptan terminated polysulfide polymer of the formula HS(RSS).sub.n RSH; wherein in the formulae R is --C.sub.2 H.sub.4 --O--CH.sub.2 H.sub.4 --; 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 1,000 and about 4,000.
REFERENCES:
patent: 2466963 (1949-04-01), Patrick et al.
patent: 4020033 (1977-04-01), Dannels
patent: 4425389 (1984-01-01), Schollhorn et al.
patent: 4431691 (1984-02-01), Greenlee
patent: 4622249 (1986-11-01), Bowser
patent: 4623711 (1986-11-01), Morris et al.
Dawson Robert A.
Products Research & Chemical Corp.
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