The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 1984
Filed:
Jan. 20, 1983
Applicant:
Inventors:
Kazuyuki Nishikawa, Toyohashi, JP;
Katsumi Hirao, Akashi, JP;
Kazuhiko Mizuguchi, Yokohama, JP;
Hiroshi Suzuki, Okazaki, JP;
Assignees:
Daicel Chemical Industries, Ltd., Sakai, JP;
Shinto Kogio Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28B / ;
U.S. Cl.
CPC ...
523145 ; 106 / ; 164526 ; 428404 ; 524 41 ; 524 44 ; 524 45 ;
Abstract
Foundry sand grains coated with a binder composition which comprises 100 wt. parts of methylolmelamine or alkylated methylolmelamine and 5 to 100 wt. parts of a water-soluble organic compound having a hydroxyl group. The sand grains coated with the composition are effective in a low-temperature foundry, especially for forming a core in an aluminum-alloy foundry.