Metal treatment – Stock – Amorphous – i.e. – glassy
Patent
1991-11-12
1993-03-30
Wyszomierski, George
Metal treatment
Stock
Amorphous, i.e., glassy
420550, 428328, C22C 4508
Patent
active
051980428
ABSTRACT:
An aluminum alloy powder for coating materials and a coating material containing the aluminum alloy powder. The aluminum alloy powder comprises an amorphous aluminum alloy consisting essentially of from 83 to 91% of Al, from 0.5 to 5% of Ca and from 8 to 12% of Ni, all in atom %, and comprising a leaf-shaped particle having a thickness of 0.3 to 3 .mu.m, a minor axis of from 10 to 150 .mu.m, a ratio of the minor axis to a major axis of from 1 to 3, and an aspect ratio which is the ratio of the minor axis to the thickness of from 3 to 100, wherein the aluminum alloy powder is contained in an amount of from 5 to 25 parts by weight based on 100 parts by weight of the total weight of (i) the coating material resin component and (ii) aluminum alloy powder, and the coating material resin component is selected from the group consisting of a water-based synthetic latex and a water-soluble resin. The aluminum alloy powder has a superior dispersibility in a resin in a coating material. When added to a coating material and then coated, the aluminum alloy powder can bring about leafing in a desirable state, so that the coating surface can be effectively covered with the powder. The aluminum alloy powder can impart better hiding power and reflecting properties, even when added in a smaller quantity than conventional powders. Since the aluminum alloy powder is comprised of an amorphous alloy, it does not cause deterioration of reflecting properties, even when used in coating materials containing water-soluble solvents.
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Harakawa Yoshio
Inoue Akihisa
Kita Kazuhiko
Masumoto Tsuyoshi
Oguchi Masahiro
Masumoto Tsuyoshi
Teikoku Piston Ring Co. Ltd.
Wyszomierski George
Yoshida Kogyo K.K.
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