Title:
POLYMER GEL AND PROCESS FOR THE ACTIVATION OF ACTIVE HYDROGEN COMPOUNDS
Document Type and Number:
WIPO Patent Application WO/1999/012873
Kind Code:
A1
Abstract:
Active hydrogen atoms contained in an active hydrogen compound are activated by using as the activation catalyst a polymer gel having a three-dimensional network structure holding a solvent therein and bearing active sites inside the network structure and on the surface thereof. It is preferable that the polymer gel exhibit a swelling ratio of 2 or above and/or have basic functional groups, particularly those resulting from at least one compound selected from the group consisting of tertiary amines, quaternary ammonium salts, cyclic amines and sulfides. The activation of active hydrogen atoms contained in an active hydrogen compound is suitably conducted under such conditions that the quantity of basic active sites of the gel per unit volume of the reaction system is 0.43 mmol/cc or above.
Inventors:
YAMAMOTO HIROSHI (JP)
HIRANO YOSHIAKI (JP)
HIRANO YOSHIAKI (JP)
Application Number:
PCT/JP1998/004021
Publication Date:
March 18, 1999
Filing Date:
September 07, 1998
Export Citation:
Assignee:
NIPPON CATALYTIC CHEM IND (JP)
YAMAMOTO HIROSHI (JP)
HIRANO YOSHIAKI (JP)
YAMAMOTO HIROSHI (JP)
HIRANO YOSHIAKI (JP)
International Classes:
C07B39/00; C07B61/00; C07C17/16; C07C41/03; C07C45/00; C07C45/37; C07C45/38; C07C45/39; C07C45/46; C07C45/63; C07C45/64; C07C45/72; C07C51/353; C07C67/26; C07C205/37; C07C205/43; (IPC1-7): C07B61/00; C07B41/02; C07B41/04; C07B37/04; C07C41/03; C07C45/64; C07C67/26; C07C67/343; B01J31/06
Foreign References:
| JPS54148705A | 1979-11-21 | |||
| JPS58117208A | 1983-07-12 | |||
| JPH06320009A | 1994-11-22 | |||
| JPH0670785A | 1994-03-15 | |||
| JPH09290163A | 1997-11-11 |
Other References:
See also references of EP 0970937A4
Attorney, Agent or Firm:
Hara, Kenzo (Tenjinbashi 2-chome Kita Kita-ku, Osaka-shi Osaka, JP)
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