Title:
【発明の名称】ポリアミドの硝酸加水分解
Document Type and Number:
Japanese Patent JP3048644
Kind Code:
B2
Abstract:
Dicarboxylic acid and diamine are recovered from polyamides by hydrolysis with nitric acid, followed by separation of the dicarboxylic acid, and hydrogenation of the nitric acid, and then recovery of the diamine.
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Inventors:
Davis, Darwin, Darrell
Will Hoyt, Eugene, Dennis
Will Hoyt, Eugene, Dennis
Application Number:
JP50387797A
Publication Date:
June 05, 2000
Filing Date:
June 13, 1996
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
C07B61/00; C07C51/06; C07C53/126; C07C55/14; C07C209/62; C07C211/12; C07D201/12; (IPC1-7): C07C51/06; C07C55/14; C07C209/62; C07C211/12; C07D201/12
Domestic Patent References:
| JP632775A | ||||
| JP7196796A | ||||
| JP4631871B1 |
Other References:
【文献】米国特許4605762(US,A)
【文献】国際公開94/13616(WO,A1)
【文献】国際公開96/10008(WO,A1)
【文献】国際公開94/13616(WO,A1)
【文献】国際公開96/10008(WO,A1)
Attorney, Agent or Firm:
Yoshikazu Tani (3 others)