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Patent Searching and Data


Title:
LIQUEFACTION OF ACID ANHYDRIDE
Document Type and Number:
WIPO Patent Application WO/1980/001804
Kind Code:
A1
Abstract:
Diels-Alder reaction products of maleic anhydride which is in a solid state in a room temperature and a dimethyloctatriene are liquefied by heat-treatment in the presence of an isomerization catalyst of compounds selected from the group consisting of a) alkali metal salts, b) amines and quaternary ammonium salts, c) phosphine compounds and quaternary phosphonium salts, d) thiocyanates, and e) solid basic compounds. The liquefied acid anhydrides thus obtained are useful as a curing agent for epoxy resins.

Inventors:
Miura, Onuma Samejima M. Y. H.
Application Number:
PCT/JP1979/000049
Publication Date:
September 04, 1980
Filing Date:
February 28, 1979
Export Citation:
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Assignee:
MITSUBISHI PETROCHEM CO LTD MIURA M ONUMA Y SAMEJIMA H.
International Classes:
C07C57/13; C07C61/22; (IPC1-7): C07D307/89
Foreign References:
GB906017A
JPS5027517B2
JPS5014280B2
JPS525495B2
JPS53130638A
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