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US 5,578,740 AGranted
Process for preparation of epoxy compounds essentially free of organic halides
AssigneeThe Dow Chemical Company
InventorsAndrew T. Au, J. Lowell Nafziger
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Abstract
Epoxy-containing compounds which are essentially free of organic halides are prepared by (I) reacting an allyl derivative of an active hydrogen-containing compound with (II) a peroxygen-containing compound. The epoxy-containing compounds are useful in coatings, castings, laminates etc.
Claims29
A process for the preparation of an epoxy-containing compound comprising the steps of
- (1) providing an allyl reagent which contains at least one allyl carboxylated group or allyl carbonate group;
- (2) allylating one or more compounds containing at least one hydroxyl group, thiol group, or primary or secondary aromatic amine group per molecule using the allyl reagent from step (1), whereby an allyl ether, allyl amine or allyl thioether compound is formed;
- and
- (3) converting the allyl groups on the compound from step (2) to epoxide groups, whereby a glycidyl ether, glycidyl amine or glycidyl thioether compound is formed.
1 more element
A process to make an allyl ether, allyl thioether or allyl amine comprising the step of reacting:
- (a) an active-hydrogen-containing compound containing at least one hydroxyl, thiol, or primary or secondary aromatic amine group with
- (b) an allyl compound containing an allyl carboxylate group
- (c) in the presence of metal catalyst and
- (d) in the presence of a base which is employed in an amount of at least about 1 equivalent of base per equivalent of active-hydrogen-containing compound,
- whereby a compound containing allyl ether, allyl thioether, or allyl amine moieties is formed.
2 more elements
Dependencies are inferred from the claim text.