Continuous processes and apparatus for forming cyanoacetate and cyanoacrylate
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Feb 13, 2003
app pub date -
May 16, 2002
filing date -
Oct 31, 2000
priority date (Note) -
Abandoned
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Abstract
Continuous processes for forming cyanoacrylate from polycyanoacrylate include stripping a solvent from a reaction mass; cracking a polymer in the reaction mass to form a cracked cyanoacrylate monomer and residue substances; and distilling the cracked cyanoacrylate monomer to produce a cyanoacrylate monomer product. These steps can be performed in short-path, wiped-film evaporators. Polycyanoacrylate used in the processes can be formed using cyanoacetate produced by processes for continuously producing cyanoacetate by forming a higher homologue cyanoacetate from a lower homologue cyanoacetate. The cyanoacetate can be formed in short-path, wiped-film evaporators.
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