Process for preparing polyvinylamine and salts thereof

Details Process for preparing polyvinylamine and salts thereof Process for preparing polyvinylamine and salts thereof

1974-11-04

1977-04-19

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 72R, 260144, 260159, 260543A, 260556B, 260561R, 260561N, 426250, 8 41R, 526 12, 526 47, 526310, A23L 127, C07C 8724, C08F12052, C08F12602

Patent

active

040188264

ABSTRACT:
Poly(vinylamine) salts of mineral acids are produced by reacting acetaldehyde and acetamide at a mole ratio of 1:2-4 with acid catalyst, cracking the ethylidene-bis-acetamide which results into vinylacetamide, polymerizing the vinylacetamide with a free radical polymerization catalyst, and hydrolyzing the poly(vinylacetamide) to the desired amine salts by contacting the polyvinylacetamide with an aqueous solution of the corresponding mineral acid. This product may be converted to the free amine, which in turn may function as a precursor in the manufacture of certain polymeric dyes and colorants.

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