Method for preventing surface stain of cured silicone sealant

Details Method for preventing surface stain of cured silicone sealant Method for preventing surface stain of cured silicone sealant

1983-03-18

1984-07-17

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524720, 524723, 528 33, 528 34, 528901, C08K 516

Patent

active

044607407

ABSTRACT:
The invention provides a novel means for solving the serious problem in conventional silicone sealant compositions that the surface of the cured sealant composition, when used for sealing or caulking of a joint in building structures of, in particular, stony components, is susceptible to stain from environmental atmosphere eventually spreading over the adjacent surfaces. The invention proposes admixing a limited amount of a specific fluorine-containing surface active agent with the silicone sealant composition before it is applied for sealing or caulking.

REFERENCES:
patent: 3393164 (1968-07-01), Braun
patent: 3706695 (1972-12-01), Huebner et al.
patent: 4026845 (1977-05-01), Kim et al.

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