Polyvinyl ether compound

Details Polyvinyl ether compound Polyvinyl ether compound

1993-05-25

1995-03-21

Nagumo, Mark

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

Synthetic resins

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

568672, 526332, 526333, 525940, C08F11670, C08F11618

Patent

active

053996313

ABSTRACT:
A method of production of an ether compound from an acetal compound or a ketal compound which is excellent in conversion and selectivity and does not cause corrosion of apparatuses and a novel useful polyvinyl ether compound as lubricating oil for compression-type refrigerators, electric insulation oil and the like are disclosed. The method of production of the present invention comprises reaction of an acetal compound or a ketal compound with hydrogen in the presence of a solid catalyst having acidic property and hydrogenation ability to produce the corresponding ether compound. The polyvinyl ether compound of the present invention comprises the constituting unit expressed by the general formula: ##STR1## (characters in the general formula are the same as those described in the specification), contains none of unsaturated bond, acetal structure and aldehyde structure in the molecule and has weight average molecular weight in the range of 300 to 3000.

REFERENCES:
patent: 2104000 (1937-12-01), Reppe et al.
patent: 3085997 (1963-04-01), Martin
patent: 5196491 (1993-03-01), Cho et al.
patent: 5272233 (1993-12-01), Crivello et al.
Higashimura, T et al. (1988) Polymer Preprints 29(2), 1-2.

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