| 摘要 |
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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