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:
Sep. 19, 2017
Filed:
Jan. 29, 2016
Shanghai Nnw New Materials Technology Co., Ltd., Shanghai, CN;
SHANGHAI NNW NEW MATERIALS TECHNOLOGY CO., LTD., Shanghai, CN;
Abstract
The present invention relates to an ink composition and a writing instrument. The ink composition comprises 10 to 70 wt % of a metallic pigment, 10 to 30 wt % of a resin, 0 to 20 wt % of a colorant, 0 to 20 wt % of an auxiliary agent and a solvent as the remainder; the solvent is a main solvent or a mixture of the main solvent and an auxiliary solvent; the resin includes a film-forming resin and a thickening resin; the present invention uses a low-level monohydric alcohol solvent as the main solvent, a polyvinyl acetal resin as the film-forming resin, and further includes the auxiliary agent, the metallic pigment or the colorants, so the ink composition with such good characteristics as being environmental friendly, drying quickly, being written smoothly and having strong compatibility to general writing surfaces is produced.