Kao Corporation

Kabushiki Kaisha Kobe Seiko Sho

Takehiko Ichimoto

Kuniaki Matsui

Yoshio Okamoto

Kenichi Miyamoto

Akio Manba

Masataka Negishi

Tomoyuki Sugita

Reiji Ono

Takashi Nakaya

Tsunao Kamijo

Yoshio Kimura

Takashi Matoba

Hidemi Ohashi

Hiroyuki Andoh

Yukio Sugishita

Masaru Akao

Pulverized coal carriability improver

The present invention relates to a lubricant composition for press-forming an aluminum or aluminum alloy sheet at low temperatures. The composition contains a component (a): 45 to 90% by weight of one or more hydrocarbons selected from the group consisting of mineral oils, synthetic naphthenes, polybutenes, and poly(mono).alpha.-olefins, and component (b): 10 to 45% by weight of one or more C10-C24 linear or branched fatty alcohols. The ester value of the composition is not more than 70, and the kinematic viscosity is less than 20 cSt at 40.degree. C. When this composition is used in forming aluminum or aluminum alloy sheets, enhanced formability can be obtained, and shapes which could not obtained conventionally can be formed.

Lubricant composition for cryogenic forming of aluminum or aluminum

A water-dispersible oil composition for hot rolling aluminum or aluminum alloys having excellent lubricity and emulsion stability and which minimizes heat deterioration over prolonged periods of time contains the following components (a) to (d): (a) a mineral oil, (b) 3 to 30% by weight of a fatty acid or its monoesters, or oils and fats, (c) 0.5 to 10% by weight of a C.sub.4 -C.sub.18 alkyl or alkenyl phosphoric (or phosphorous) acid ester, and (d) 0.1 to 10% by weight of a salt between a polymer and an organic acid salt, wherein the polymer has an average molecular weight of 10,000 to 1,000,000 and is a copolymer of a monomer represented by formula (1): ##STR1## wherein R.sup.1 is H or Me, R.sup.2 and R.sup.3 are independently H or C.sub.1 -C.sub.3 alkyl, m is an integer of 0 or 1, and n is an integer of 1, 2 or 3, and (meth) acrylamide and/or a (meth) acrylic acid salt. Rolled aluminum or aluminum alloy products having excellent surface quality can be obtained using this composition.

Oil compositions for hot rolling aluminum and aluminum alloys

A novel water dispersible cold rolling oil composition for aluminum and aluminum-containing alloys comprising (a) one or more lube oil components selected from mineral oils, higher fatty alcohols, higher fatty esters and higher fatty acids, and (b) a specific water soluble cationic or amphoteric polymer compound. The composition provides a cold rolling lubricant which possesses excellent cooling capability, rolling lubricity and circulation stability, and can be readily controlled in operation.

Cold rolling oil composition for aluminum and aluminum-containing alloys

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Wakayama, Japan

Takehiko Ichimoto