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:
Oct. 07, 2025
Filed:
Jun. 01, 2023
North University of China, Taiyuan, CN;
Shanxi Zhongbei New Material Technology Co., Ltd., Taiyuan, CN;
NORTH UNIVERSITY OF CHINA, Taiyuan, CN;
SHANXI ZHONGBEI NEW MATERIAL TECHNOLOGY CO., LTD., Taiyuan, CN;
Abstract
A method for preparing a graphene-containing ultra-fine powdered natural rubber masterbatch, including: mixing a diluted graphene oxide dispersion with an anionic surfactant to obtain a modified graphene oxide dispersion; mixing the modified graphene oxide dispersion with a natural rubber latex suspension to obtain a mixed emulsion; and subjecting the mixed emulsion to spray drying to obtain the ultra-fine powdered natural rubber masterbatch with a particle size of less than 5 μm. This application further provides a method for preparing a graphene-modified natural rubber nanocomposite, including: mixing the ultra-fine powdered natural rubber masterbatch with natural rubber block, and carbon black.