Lubricant compositions for metalworking
AssigneesDirector-General of Agency of Industrial Science and Technology, Taihei Chemical Industrial Co., Ltd., Hanano Commercial Co., Ltd., Kabushiki Kaisha Gosei Kagaku Kenkyusho
InventorsKiyohisa Eguchi, Norio Kitamura, Terumasa Okamura, Jouji Ohta
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Abstract
The present invention provides a lubricant composition for metalworking at a temperature higher than 200.degree. C. which comprises as its active components (i) at least one alkali metal salts of phthalic acid and (ii) a glass composition comprising 20 to 70% by weight of P.sub.2 O.sub.5, 8 to 72% by weight of M.sub.2 O wherein M is an alkali metal and 0 to 80% by weight of B.sub.2 O.sub.3, the ratio of component (i) to component (ii) being about 10:90 to about 90:10 in a total amount of 100 parts by weight.
Claims9
A lubricant composition for metalworking which comprises as its active components (i) at least one alkali metal salt of phthalic acid and (ii) a glass composition comprising 20 to 70% by weight of P.sub.2 O.sub.5 and 8 to 80% by weight of M.sub.2 O wherein M is an alkali metal the ratio of component (i) to component (ii) being about 10:90 to about 90:10 in a total amount of 100 parts by weight.
Dependencies are inferred from the claim text.