Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1980-12-10
1982-07-27
Dees, Carl F.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252430, 252455Z, B01J 3108, B01J 3126, B01J 2904
Patent
active
043416586
ABSTRACT:
Catalysts for reacting vicinal epoxides with an aromatic hydroxyl-containing material result from the treatment of a solid substrate containing a plurality of ion-exchangeable cations with a polymer containing a multiplicity of quaternary onium cations in association with a reactive anion such that after treatment, there remains a sufficient quantity of the quaternary onium cations in association with the reactive anion to catalyze the reaction. These catalysts reduce the quantity of side reactions.
REFERENCES:
patent: 3036986 (1962-05-01), O'Connor et al.
patent: 3048552 (1962-08-01), Fang
patent: 3954883 (1976-05-01), Haag et al.
Hairston Thomas J.
Ham George E.
Hatch Melvin J.
Monnerat Georgia A.
Carter J. G.
Dees Carl F.
The Dow Chemical Co.
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