Highly polymerizable N-vinlycarboxylic acid amide and production process thereof
US6153708A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1999 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Mar 18, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C233/05
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
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-vinyl-carboxylic acid amide is produced by thermal cracking or catalytic cracking of N-(1-alkoxyethyl)carboxylic acid amide or ethylidenebiscarboxylic acid amide, wherein the N-vinyl-carboxylic acid amide content of the N-(1-alkoxyethyl)-carboxylic acid amide or ethylenebiscarboxylic acid amide is 10 wt % or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.