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).

  • Patent number: 9365669
    Abstract: A slump retaining polycarboxylic acid superplasticizer. A weight average molecular weight of the superplasticizer is 20,000-80,000. The slump retaining polycarboxylic acid superplasticizer is prepared by performing polymerization reaction on a monomer A, a monomer B, a monomer C and a monomer D in an aqueous solution in the presence of a redox initiator, wherein a molar ratio of (the monomer A+the monomer B):the monomer C:the monomer D is 1:(3-8):(4-12), and a molar ratio of the monomer A to the monomer B is 1:(1-4).
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: June 14, 2016
    Assignees: SOBUTE NEW MATERIALS CO., LTD., BOTE BUILDING MATERIALS (TIANJIN) CO., LTD
    Inventors: Jiaping Liu, Dongliang Zhou, Qianping Ran, Yong Yang, Jinzhi Liu
  • Patent number: 9175122
    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. Monomer B is expressed by General Formula (2), where, R2 is H or COOM; R3 is H or CH3 and M is H, Na, K or NH4; Monomer C is expressed by General Formula (3), where, R4 is H or methyl; X2?O, CH2O, CH2CH2O; Y?CH2, CH2CH2, CH(CH3), CH2CH2CH2, CH(CH3)CH2, C(CH3)2 and n is an integer from 5 to 200.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: November 3, 2015
    Assignee: SOBUTE NEW MATERIALS CO., LTD.
    Inventors: Changwen Miao, Min Qiao, Qianping Ran, Jianping Liu, Dongliang Zhou, Yong Yang, Yonglin Mao
  • Publication number: 20150291716
    Abstract: A slump retaining polycarboxylic acid superplasticizer. A weight average molecular weight of the superplasticizer is 20,000-80,000. The slump retaining polycarboxylic acid superplasticizer is prepared by performing polymerization reaction on a monomer A, a monomer B, a monomer C and a monomer D in an aqueous solution in the presence of a redox initiator, wherein a molar ratio of (the monomer A+the monomer B):the monomer C:the monomer D is 1:(3-8):(4-12), and a molar ratio of the monomer A to the monomer B is 1:(1-4).
    Type: Application
    Filed: December 5, 2012
    Publication date: October 15, 2015
    Inventors: Jiaping LIU, Dongliang ZHOU, Qianping RAN, Yong YANG, Jinzhi LIU
  • 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