Patents by Inventor Joseph Kulig

Joseph Kulig 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 itaconate-butadiene bio-based engineering rubber
    Patent number: 11890896
    Abstract: A preparation method of itaconate-butadiene bio-based engineering rubber belongs to the bio-based engineering rubber area. The bio-based engineering rubber of the present disclosure is formed through chemical crosslinking of copolymers, which are formed by polymerization of itaconate and butadiene emulsion. The number average molecular weight of the itaconate-butadiene copolymer is about 53000-1640000, and weight-average molecular weight is about 110000-2892000. Itaconate-butadiene copolymers are formed by polymerization of itaconate and butadiene emulsion, then and chemical crosslinking of the copolymer is performed to form bio-based engineering rubber using a traditional sulfur vulcanizing system. The bio-based engineering rubber has high molecular weights as well as lower glass-transition temperatures and can be vulcanized using the traditional sulfur vulcanizing system.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 6, 2024
    Assignees: BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY, THE GOODYEAR TIRE & RUBBER COMPANY
    Inventors: Liqun Zhang, Xinxin Zhou, Runguo Wang, Weiwei Lei, He Qiao, Kuo-chih Hua, Joseph Kulig, Surendra K Chawla
  • A preparation method of itaconate-butadiene bio-based engineering rubber
    Publication number: 20180250984
    Abstract: A preparation method of itaconate-butadiene bio-based engineering rubber belongs to the bio-based engineering rubber area. The bio-based engineering rubber of the present disclosure is formed through chemical crosslinking of copolymers, which are formed by polymerization of itaconate and butadiene emulsion. The number average molecular weight of the itaconate-butadiene copolymer is about 53000-1640000, and weight-average molecular weight is about 110000-2892000. Itaconate-butadiene copolymers are formed by polymerization of itaconate and butadiene emulsion, then and chemical crosslinking of the copolymer is performed to form bio-based engineering rubber using a traditional sulfur vulcanizing system. The bio-based engineering rubber of the present disclosure has high molecular weights as well as lower glass-transition temperatures and can be vulcanized using the traditional sulfur vulcanizing system.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 6, 2018
    Inventors: Liqun Zhang, Xinxin Zhou, Runguo Wang, Weiwei Lei, He Qiao, Kuo-chih Hua, Joseph Kulig, Surendra K. Chawla