Title:
エチレン性不飽和酸またはそのエステルの製造
Document Type and Number:
Japanese Patent JP2011520948
Kind Code:
A
Abstract:
A production process for the manufacture of ethylenically unsaturated acids or esters thereof is described. The process includes the steps of reaction of an alkanoic acid, or ester of an alkanoic acid, of the formula R3-CH2-COOR4 where R3 and R4 are each independently hydrogen or an alkyl group, in the presence of a catalyst system to produce an ethylenically unsaturated acid or ester product. The process is characterised in that the acid or ester product is subsequently contacted with a dienophile to thereby remove discolouration therefrom. An ethylenically unsaturated acid or ester crude product purification process is also described.
Inventors:
Johnson, David William
Maurice, Trevor Hugh
Maurice, Trevor Hugh
Application Number:
JP2011510048A
Publication Date:
July 21, 2011
Filing Date:
May 15, 2009
Export Citation:
Assignee:
Lucite International U.K. Limited
International Classes:
C07C67/62; C07C67/343; C07C69/54; C07B61/00
Domestic Patent References:
| JPS61502535A | 1986-11-06 | |||
| JPH0648977A | 1994-02-22 | |||
| JP2007055948A | 2007-03-08 | |||
| JPH09316022A | 1997-12-09 | |||
| JP2001288147A | 2001-10-16 |
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Atsushi Honda
Miho Ikegami
Makoto Onda
Atsushi Honda
Miho Ikegami