Polyacrylated polyurethanes and gaskets having sealants thereof

Details Polyacrylated polyurethanes and gaskets having sealants thereof Polyacrylated polyurethanes and gaskets having sealants thereof

1978-04-21

1979-03-20

Cockeram, H.S.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

260 37M, 260 37N, 260859R, 428425, 528 75, 277166, 277DIG6, C08G 1816, C08G 1862, F16J 1514, B65D 5306

Patent

active

041455096

ABSTRACT:
An improved gasket is disclosed having a novel sealant comprising the reaction product of a monoacrylated, terminated, active hydrogen-containing hydrocarboxy reactant an aromatic diisocyanate, and a polyacrylated terminated hydrocarboxy reactant. The active hydrogen of the monoacrylated reactant reacts with at least one isocyanate radical of the aromatic diisocyanate to form an isocyanate linkage, and the reaction product of the monoacrylated and diisocyanate reactant is further reacted with the polyacrylated terminated reactant in widely varying mole ratios. The resulting gaskets have improved temperature resistance, compressibility, film hardness, elongation, flexibility, and organic solvent resistance.

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