Polyether glycols and alcohols derived from 3,4-epoxy-1-butene

Details Polyether glycols and alcohols derived from 3,4-epoxy-1-butene Polyether glycols and alcohols derived from 3,4-epoxy-1-butene

1994-10-24

1995-11-14

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525409, 528417, 528421, 568616, 568617, C08G 6514, C08G 6520, C07C 4310, C07C 4313

Patent

active

054667593

ABSTRACT:
Disclosed are novel saturated polyether compounds comprised of n units of residue (1) and m units of residue (2), wherein (i) residues (1) and (2) have the structures: ##STR1## (ii) the total value of n+m is 2 to 70 and m/(n+m) is 0.05 to 0.98; (ii) at least 98 percent of the terminal hydroxyl groups of the polyether have the structure: ##STR2## The polyethers are obtained by first polymerizing 3,4-epoxy-1-butene to produce unsaturated polyether precursors comprising residues (1A) and (2A) having the structures: ##STR3## and then hydrogenating the unsaturated polyether precursors. The hydrogenation advantageously is performed in the presence of a nickel hydrogenation catalyst.

REFERENCES:
patent: 4183821 (1980-01-01), Langdon
patent: 4299993 (1981-11-01), Bethea
patent: 4393199 (1983-03-01), Manser
patent: 4564671 (1986-01-01), Mueller
patent: 4728722 (1988-03-01), Mueller
patent: 5313000 (1994-05-01), Stewart

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