Radiation resistant oil and method of lubricating for atomic power facilities
AssigneeKureha Kagaku Kogyo Kabushiki Kaisha
InventorsMasaaki Takahashi, Akira Ito
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Abstract
A radiation resistant working oil for lubricating parts of atomic power facilities which are exposed to radioactive rays consists essentially of alpha-benzyl substituted methylnaphthalene isomers and beta-benzyl substituted methylnaphthalene isomers in the ratio of about 1:0.2-1:1.
Claims3
A radiation resistant working oil suitable for use as a lubricant or medium for parts of atomic power facilities and nuclear reactors which are exposed to strong radiation, consisting essentially of a mixture of alpha-benzyl substituted methylnaphthalene isomers and beta-benzyl substituted methylnaphthalene isomers at a weight ratio of said alpha-benzyl methylnaphthalene isomers to said beta-benzyl methylnaphthalene isomers of from 50:50 to 95:5, said mixture being prepared by condensing alpha- and beta-methylnaphthalenes with benzyl chloride in the presence of Friedel Crafts' catalyst.
A method of lubricating parts of atomic power facilities and nuclear reactors which are exposed to strong radiation comprising applying to said parts a substance consisting essentially of a mixture of alpha-benzyl substituted methylnaphthalene isomers and beta-benzyl substituted methylnaphthalene isomers at a weight ratio of said alpha-benzyl substituted methylnaphthalene isomers to beta-benzyl substituted methylnaphthalene isomers of from 50:50 to 95:5, said mixture being prepared by condensing alpha- and beta-methylnaphthalenes with benzyl chloride in the presence of Friedel Crafts' catalyst.
Dependencies are inferred from the claim text.