Polysulfide sealants with reduced moisture vapor transmission

Details Polysulfide sealants with reduced moisture vapor transmission Polysulfide sealants with reduced moisture vapor transmission

1993-08-26

1995-07-04

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfur containing

C07C32104

Patent

active

054301920

ABSTRACT:
The moisture vapor transmission rates of sealants containing liquid polysulfides made from mixtures of a hexylene dihalide and a chloroethyl formal wherein the molar ratio is from about 1.5:1 to about 2.3:1 are extremely low. A preferred ratio is 0.64:0.36. The new liquid polysulfide is useful in conventional sealant formulations for insulated glass window units.

REFERENCES:
patent: 2363614 (1944-11-01), Patrick
patent: 2363615 (1944-11-01), Patrick
patent: 2363616 (1944-11-01), Patrick
patent: 2466963 (1949-04-01), Patrick et al.
patent: 2553206 (1951-05-01), Patrick
patent: 3736301 (1973-05-01), Berenbaum et al.

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