Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1985-09-20
1986-11-25
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
525507, 528 95, 528491, 528405, 549516, 549517, 549202, C08G 5906, C08G 5908
Patent
active
046249753
ABSTRACT:
The hydrolyzable halide content of glycidyl ethers prepared by dehydrohalogenating a halohydrin ether intermediate product in the presence of an organic solvent, washing the resultant product with water and distilling the solvent from the organic phase from the water wash step is stabilized when the distillation step is conducted in the presence of a sulfonic acid, sulfonic acid ester, organic sulfate or any combination thereof such as p-toluene sulfonate.
REFERENCES:
patent: 2767157 (1956-10-01), Masters
patent: 3325452 (1967-06-01), McWhorter et al.
patent: 3417050 (1968-12-01), Price et al.
patent: 4281075 (1981-07-01), Chattha
Carter J. G.
Nielsen Earl
The Dow Chemical Company
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