Synthetic saturated oils, and their production and use
AssigneeSumitomo Chemical Company, Limited
InventorsSeimei Yasui, Hiroshi Sato
Life of this patent
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Abstract
Synthetic saturated oils useful as materials for lubricating oils and cosmetics and prepared by hydrogenation of low molecular weight polyisoprene having the 1,4 structure of at least 70% in the main chains and a number average molecular weight of about 150 to 3,000.
Claims11
A method for the preparation of synthetic saturated oils, which comprises hydrogenation of low molecular weight polyisoprene having the 1,4 structure of at least 70% of the main chains and a number average molecular weight of about 150 to 3,000.
A synthetic saturated oil which is substantially representable by the formula:
- ##STR2## wherein R.sub.1 is hydrogen or alkyl having 1 to 8 carbon atoms, R.sub.2 is hydrogen, ethyl or isopropyl and n is an integer of 1 to 40.
A colorless, transparent and odorless, liquid synthetic saturated oil having a boiling point at 760 mm Hg .gtoreq. 150.degree. C, a specific gravity of 0.79 .ltoreq. d.sup.20 .ltoreq. 0.92, a refractive index 1.40 .ltoreq. n.sub.D.sup.20 .ltoreq. 1.50, and a viscosity 0.2 cp .ltoreq. .sup.30.degree. C .ltoreq. 10.sup.5 cp, said oil being substantially represented by the formula:
- ##STR3## wherein R.sub.1 is hydrogen or alkyl having 1 to 8 carbon atoms, R.sub.2 is hydrogen, ethyl or isopropyl and n is an integer of 1 to 40.
Dependencies are inferred from the claim text.