Ambient rapid-curing amino and epoxide polythioether reactants c

Details Ambient rapid-curing amino and epoxide polythioether reactants c Ambient rapid-curing amino and epoxide polythioether reactants c

1995-11-02

1997-04-15

Sellers, Robert E.

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

Synthetic resins

From silicon reactant having at least one...

528374, 528375, C08G 7504

Patent

active

056210620

ABSTRACT:
Solvent-free, fluid polythioether coating or caulking compositions having excellent room-temperature self-curing properties and excellent leveling properties are produced by mixing reactive liquid precursor components comprising a hydroxyl- or silyl-terminated amino polythioether of formula A and a hydroxyl- or silyl-terminated epoxy polythioether of formula B. The mixture is applied to a surface to the protected, preferably a hydrolyzable metal surface such as aluminum which is reactive with the hydroxyl or silyl terminal groups, and cured at room temperature for less than two hours to produce a self-leveling protective coating or gap-fill which is strongly-bonded to the surface and is flexible and stable over a wide temperature range between about -60.degree. F. and +360.degree. F.

REFERENCES:
patent: 4151157 (1979-04-01), Williams et al.
patent: 4336307 (1982-06-01), Singh et al.
patent: 4950707 (1990-08-01), Shimizu et al.
patent: 5429772 (1995-07-01), Castellucci et al.

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