Patents by Inventor Qianwan Cheng

Qianwan Cheng 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).

  • Spherical rubber chemicals and the method for preparing the same
    Patent number: 8066919
    Abstract: The present invention provides spherical rubber chemicals and the method for preparing the same. The spherical rubber chemicals of the present invention include spherical antioxidants, spherical vulcanization agents, spherical processing aids, spherical reinforcing agents, or spherical adhesive agents. With the spherical rubber chemicals of the present invention, the shortcomings of powdery or semi-spherical rubber chemicals are overcome, including eliminating the dust pollution during granulation procedure and avoiding the raw material loss and the environmental pollution, while solving the quality problem of lower melting point of product caused by the presence of fine powder crystal. Furthermore, the resultant rubber chemicals has an improved smoothness of surface, which is helpful to improve the flowing and mixing behaviors of the rubber chemicals in mixing or open milling process with rubbers.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: November 29, 2011
    Assignee: Jiangsu Sinorgchem Technology Co., Ltd.
    Inventors: Nongyue Wang, Xiaohui Mao, Xiaogen Feng, Qianwan Cheng, Luxin Wang
  • GLOBULAR RUBBER ADJUVANTS AND THE METHOD OF PREPARATING THE SAME
    Publication number: 20100314789
    Abstract: The present invention provides spherical rubber chemicals and the method for preparing the same. The spherical rubber chemicals of the present invention include spherical antioxidants, spherical vulcanization agents, spherical processing aids, spherical reinforcing agents, or spherical adhesive agents. With the spherical rubber chemicals of the present invention, the shortcomings of powdery or semi-spherical rubber chemicals are overcome, including eliminating the dust pollution during granulation procedure and avoiding the raw material loss and the environmental pollution, while solving the quality problem of lower melting point of product caused by the presence of fine powder crystal. Furthermore, the resultant rubber chemicals has an improved smoothness of surface, which is helpful to improve the flowing and mixing behaviors of the rubber chemicals in mixing or open milling process with rubbers.
    Type: Application
    Filed: October 15, 2007
    Publication date: December 16, 2010
    Inventors: Nongyue Wang, Xiaohui Mao, Xiaogen Feng, Qianwan Cheng, Luxin Wang