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:
Jun. 08, 2004
Filed:
Sep. 21, 2000
Masaki Sato, Ichikawa, JP;
Kaoru Kojima, Ichikawa, JP;
Seiju Suzuki, Ichikawa, JP;
Kazuhiko Takahashi, Ichikawa, JP;
Hiroshi Entani, Ichikawa, JP;
Nisshin Steel Co., Ltd., Tokyo, JP;
Abstract
A colored metal sheet useful as a decorative member, a multi-colored signboard, etc. is provided by transfer-printing a topcoat or clear paint layer formed on a substrate metal sheet with a sublimation dye. A basecoat paint layer and a primer paint layer may be formed between the substrate metal sheet and the paint layer . A sublimation dye penetrates into the paint layer to form colored parts extending along thickness direction of the paint layer . Glass flakes (of 8 &mgr;m or less in thickness and 10-70 &mgr;m in length) and calcium silicate (of 1-8 &mgr;m in primary particle size) may be dispersed in the paint layer , to improve slippage-proof property and wear-resistance. Powdery silica (of 0.5-8 &mgr;m in particle size) may be dispersed in the paint layer , to improve anti-scratching property and wear-resistance. Light-resistance of the paint layer is improved by using a topcoat or clear paint mainly composed of a melamine-containing thermosetting polyester resin having number average molecular weight of 1000-10000 and a glass transition temperature (Tg) of 20-60° C.