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:
Mar. 21, 2017
Filed:
Jan. 25, 2012
Norihiro Yoshida, Ichihara, JP;
Takao Nishiura, Chuo-ku, JP;
Norihiro Yoshida, Ichihara, JP;
Takao Nishiura, Chuo-ku, JP;
MARUZEN PETROCHEMICAL CO., LTD., Tokyo, JP;
Abstract
Provided are a metal nanoparticle composite which exhibits excellent stability over time and retention stability and is useful as a raw material for a metal nanoparticle-dispersed film, a method for producing the composite, a metal nanoparticle dispersion liquid, a composition for forming a metal nanoparticle-dispersed film, and a metal nanoparticle-dispersed film. Disclosed is a metal nanoparticle composite comprising (A) a star-shaped polymer having a central core and arms bonded to the central core, the arms comprising a repeating unit represented by the following formula (1) and a repeating unit represented by the following formula (2); and (B) metal nanoparticles supported thereon: wherein in the formula (1), Rrepresents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and in the formula (2), Rrepresents a methyl group or an ethyl group; and k represents an integer from 1 to 10.