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:
Aug. 11, 2020
Filed:
Jan. 26, 2018
The Procter & Gamble Company, Cincinnati, OH (US);
Institute of Chemistry Chinese Academy of Sciences, Beijing, CN;
Ping Wang, Beijing, CN;
Libin Wang, Beijing, CN;
Xu Huang, Beijing, CN;
Yanlin Song, Beijing, CN;
Fengyu Li, Beijing, CN;
Peiyi Yong, Beijing, CN;
Ce Tian, Beijing, CN;
Heng Sun, Beijing, CN;
The Procter & Gamble Company, Cincinnati, OH (US);
Institute of Chemistry Chinese Academy of Sciences, Beijing, CN;
Abstract
A method of securing a layer of colloidal crystals to a substrate is provided, to enhance durability of an aesthetic effect provided by the colloidal crystals. The method involves depositing a layer of colloidal crystals formed of mono-dispersed particles on the substrate. Subsequently, a layer of water-borne coating is applied to the layer of colloidal crystals. To be effective, the water-borne coating should have a curing temperature that is less than the polymer glass transition temperature of the mono-dispersed particles forming the colloidal crystals. The water-borne coating penetrates through the colloidal crystals to the substrate thus retaining the colloidal crystals in place. The curing temperature of the water-borne coating ensures that the colloidal crystals are not damaged by the process for curing the coating.