Patents by Inventor Qianping Ran

Qianping Ran has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Preparation method of hyperbranched polycarboxylic acid type copolymer cement dispersant
    Publication number: 20130102749
    Abstract: The present invention provides a preparation method of hyperbranched polycarboxylic acid type copolymer cement dispersant, including: Monomer A, B and C undergo a free radical copolymerization in an aqueous medium. The molar ratio of Monomer A, Monomer B and Monomer C conforms to B/A-A-2-10 and C/(A+B-C)-0.02-0.08. Monomer A is expressed by General Formula (1), where, R1 is H or a methyl; X1?O, CH2O, CH2CH2O; m is an integer from 5 to 200.
    Type: Application
    Filed: December 22, 2010
    Publication date: April 25, 2013
    Applicants: JIANGSU SUBOTE NEW MATERIALS CO.; LTD, JIANGSU BOTE NEW MATERIALS CO., LTD
    Inventors: Changwen Miao, Min Qiao, Qianping Ran, Jianping Liu, Dongliang Zhou, Yong Yang, Yonglin Mao