Highly polymerizable n-vinylcarboxylic acid amide and...

C - Chemistry – Metallurgy – 07 – C

Patent

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Details

C07C 233/05 (2006.01) C07C 231/12 (2006.01) C07C 231/24 (2006.01) C07C 233/03 (2006.01) C08F 26/02 (2006.01)

Patent

CA 2213119

A highly polymerizable N-vinylcarboxylic acid amide having an N-1,3- butadienylcarboxylic acid amide content of 30 ppm or less, a process for producing the same, and a process for producing a homopolymer of N-vinylcarboxylic acid amide or a copolymer thereof with another copolymerizable monomer using the same. Also, a highly polymerizable N-vinylcarboxylic acid amide is produced by thermal cracking or catalytic cracking of N-(1-alkoxyethyl)carboxylic acid amide or ethylidenebiscarboxylic acid amide, wherein the N- vinylcarboxylic acid amide content of the N-(1-alkoxyethyl)-carboxylic acid amide or ethylenebiscarboxylic acid amide is 10 wt.% or less.

L'invention concerne un amide d'acide N-vinylcarboxylique hautement polymérisable, ayant une teneur en amide d'acide N-1,3-butadiénylcarboxylique de 30 parties par million au maximum, un procédé permettant de produire ledit amide, ainsi qu'un procédé permettant de produire un homopolymère d'amide d'acide N-vinylcarboxylique ou un copolymère de celui-ci avec un autre monomère copolymérisable, à l'aide dudit amide. L'invention concerne également un amide d'acide N-vinylcarboxylique hautement polymérisable produit par craquage thermique ou craquage catalytique d'amide N-(1-alcoxyéthyl)carboxylique et d'amide d'acide éthylidènebiscarboxylique, la teneur en amide d'acide N-vinylcarboxylique de l'amide d'acide N-(1-alcoxyéthyl)carboxylique ou de l'amide d'acide éthylènebiscarboxylique étant de 10 % en poids au maximum.

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