Oxyalkylated polyglycerols and water-based lubricants prepared t

Details Oxyalkylated polyglycerols and water-based lubricants prepared t Oxyalkylated polyglycerols and water-based lubricants prepared t

1976-10-29

1981-05-05

Metz, Andrew

Compositions

Electrolytes for electrical devices

252 497, 252 52A, 568851, 568852, C10M 106

Patent

active

042657741

ABSTRACT:
High molecular weight polyglycerol derivatives, useful as thickening agents for water-based lubricants, are prepared by oxyalkylating a polyglycerol with ethylene oxide or a mixture of ethylene oxide and propylene oxide. The polyglycerol derivatives are characterized as having an average of more than five glycerol units, and in having more than 95% and preferably more than 99% alkylene oxide units. These compounds exhibit excellent shear strength and provide an improved hydrolube when incorporated therein.

REFERENCES:
patent: 2552532 (1951-05-01), Groote
patent: 2674619 (1954-04-01), Lundsteel
patent: 2733272 (1956-01-01), Horsley et al.
patent: 2944982 (1960-07-01), Groote et al.
patent: 3519559 (1970-07-01), Quinlan
patent: 3899387 (1975-08-01), Freis et al.
patent: 3925216 (1975-12-01), Moorhouse
patent: 4061684 (1977-12-01), Helfert et al.

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