Title:
スルホポリエステルの回収
Document Type and Number:
Japanese Patent JP5086243
Kind Code:
B2
Abstract:
Processes for the recovery of a sulfopolyester polymer from an aqueous dispersion and a sulfopolyester concentrate are provided. Particularly, a sulfopolyester concentrate, from which the sulfopolyester may be recovered and reused, are formed by processes such as evaporation and/or nanofiltration. Final recovery of the sulfopolyester may be achieved by further evaporation of water and/or salt precipitation. In addition, the recovered sulfopolyester and articles manufactured from the recovered sulfopolyester are also provided.
Inventors:
Gupta, Rakesh Kumar
Crane, Allen Lin
Krzywitz, Daniel William
George, Scott Ellie
Theo, Kabushik
Crane, Allen Lin
Krzywitz, Daniel William
George, Scott Ellie
Theo, Kabushik
Application Number:
JP2008509256A
Publication Date:
November 28, 2012
Filing Date:
January 16, 2007
Export Citation:
Assignee:
EASTMAN CHEMICAL COMPANY
International Classes:
C08J11/04; B01D61/02
Domestic Patent References:
| JP51136366A | ||||
| JP54151677A | ||||
| JP52108659A | ||||
| JP11258853A |
Foreign References:
| US20040258910 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Takashi Ishida
Tetsuji Koga