Nippon Kokan Kabushiki Kaisha

Kao Corporation

Yushiro Chemical Industry Co., Ltd.

Shuichi Iwado

Hiroshi Kuwamoto

Takashi Mukai

Hiroyuki Nagamori

Rikio Tsushima

Sakae Sonoda

Yoshihiro Sakaguchi

Shoji Okamoto

Toshimi Muto

Takeru Sharyo

Toshitake Katayama

Koji Kaburagi

Yoichi Koga

Tomoya Izushi

Nobuomi Kuroi

The present invention relates to a temper rolling oil which comprises:

Water-soluble temper rolling oil and method of temper rolling

The present invention provides a cold rolling oil for steel sheets characterized by incorporating various rolling oils with oil-soluble high-molecular compounds which are obtained by salt-forming:

Cold rolling oil for steel sheet

A metal-working oil composition comprises as essential components thereof (a) one or more lube-oil components selected from the group consisting of oils, fats, mineral oils and fatty acid esters; and (b) one or more water-soluble polymer compounds selected from the group consisting of homopolymers of acrylic amide, copolymers of acrylic amide and other monomers and salts of the homopolymers and copolymers, the molecular weights of which homopolymers, copolymers and salts fall within the range of from 1,000 to 10,000,000. The incorporation of the specific water-soluble compound allows a lube-oil component to disperse stably as large droplets in water and hence, several advantages including thick and strong lubricating film suitable for use under severe machining conditions can be obtained.

Metal-working oil composition

A metal-working oil composition containing the following three components (A), (B) and (C) as its essential components:

A metal working water-soluble lubricant composition comprising a water-soluble polymer compound whose counter anion is acidic phosphorus-containing compound or boric acid is disclosed. The water-soluble polymer compound is selected from the group consisting of cationic or amphoteric addition polymers, ring-opened polymers, polycondensation products and salts or quaternary ammonium salts of natural polymer derivatives having at least one basic or cationic nitrogen atom in one molecule thereof with a molecular weight of 1,000 to 10,000,000. The composition has a load resistance equal to or higher than known liquid lubricants which contain mineral oils, beef tallow etc., and shows an excellent lubricating performance when applied to a metal working surface.

Metal working water-soluble lubricant composition and method of feeding

A metal-working oil composition comprises as essential components thereof (a) one or more lube-oil components selected from the group consisting of oils, fats, mineral oils and fatty acid esters; and (b) one or more compounds selected from the group consisting of acidic phosphoric acid salts of aliphatic, alicyclic and aromatic amines each of which has 4 to 22 carbon atoms and quaternary ammonium salts formed from aliphatic or aromatic amines, each of which has 4 to 22 carbon atoms, and acidic phosphoric acids; and (c) a non-ionic surfactant. Incorporation of a specific amine compound together with a non-ionic surfactant permits, owing to the protective colloidal function of the compounds, stable dispersion of the lube-oil component as large droplets in water and hence the resulting dispersion enjoys good circulation stability and withstands severe machining conditions.

A water-soluble metal-working lubricant composition comprising as essential components thereof

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Fukuyama, Japan

Shuichi Iwado