HYDROXY ALKYLENE ETHERS OF DIVINYL GLYCOL
A novel polyalkylene glycol has the general formula IN WHICH Z is an integer of 1, X + Y is an integer of from 1 to about 50 and R and R' are radicals selected from the group consisting of hydrogen, a C1-C6alkyl, a C2-C6 alkenyl a C2-C6 alkynyl, and, when R and R' are taken together, a C3-...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
30.01.1973
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Subjects | |
Online Access | Get full text |
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Summary: | A novel polyalkylene glycol has the general formula IN WHICH Z is an integer of 1, X + Y is an integer of from 1 to about 50 and R and R' are radicals selected from the group consisting of hydrogen, a C1-C6alkyl, a C2-C6 alkenyl a C2-C6 alkynyl, and, when R and R' are taken together, a C3-C6 alkylene. When X is an integer of O, the hydroxyl radical is linked directly to the carbon of unit Z of the formula and when Y is an integer of O, the hydrogen radical is linked directly to the oxygen of unit Z. It is preferred to have X and Y each being an integer of at least 1 and R and R' be hydrogen or C1-C6 alkyl radicals or to represent, when taken together a C3-C6 alkylene radical. The polyalkylene glycols of this invention are produced by heating, in the presence of an alkaline catalyst, an epoxide of the general formula IN WHICH R and R' have the same meaning as stated hereinabove, with divinyl glycol of the formula The epoxide is heated with the divinyl glycol at a temperature in the range from about 50 DEG - 200 DEG C. and the molar ratio of epoxide to divinyl glycol is between 1 and about 50. |
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Bibliography: | Application Number: USD3714265 |