Patents by Inventor BEIJING RESEARCH INSTITUTE OF CHEMICAL

BEIJING RESEARCH INSTITUTE OF CHEMICAL 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).

  • PROPYLENE RANDOM COPOLYMER, METHOD FOR ITS PREPARATION, AND COMPOSITIONS AND ARTICLES CONTAINING THE SAME
    Publication number: 20130108814
    Abstract: The present invention relates to a propylene-butene-1 random copolymer which has a butene-1 content of 1-6 mol % and a relative dispersity of butene-1, as determined according to NMR method, of greater than 98.5%. The propylene-butene-1 random copolymer of the present invention has a high relative dispersity of butene-1, as well as better transparency and heat resistance, so that it is more suitable for packaging food that may be edible after heating. Moreover, the copolymer has a lower xylene solubles content at room temperature. In addition, the present invention further relates to a method for preparing the copolymer and to a composition and an article comprising the copolymer.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 2, 2013
    Applicants: BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORP., CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: CHINA PETROLEUM & CHEMICAL CORPORATI, BEIJING RESEARCH INSTITUTE OF CHEMICAL