Catalyst for the preparation of polylactams
AssigneeHarwe AG
InventorWerner Hartmann
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Abstract
Disclosed are catalysts for the polymerization of higher lactam monomers. The catalysts comprise an essentially homogenic binary mixture of lauric-lactam and a salt of lauric-lactam. The inventive catalyst can be stored at room temperature without making special provisions to avoid any access of air and moisture.
Claims2
A catalyst for the polymerization of higher lactam monomers which consists essentially of a homogeneous binary mixture of lauric lactam and the sodium salt of lauric lactam in a ratio of 3.4 to 3.9 moles of said lactam per mole of said sodium salt.
A catalyst obtained by the reaction of 100 parts of weight of lauric lactam monomer with 4.0 to 4.5 parts by weight of pure sodium amide.
Dependencies are inferred from the claim text.