Patents Assigned to Sogang University Corporation
  • Patent number: 6777364
    Abstract: The present invention provides a macroporous foam comprising microporous zeolite or zeotype material and preparation thereof, which comprises dipping a polymeric template capable of releasing an amine which has a sponge or macroporous structure and can be selected from a group consisting of polyurethane, polyamides, aromatic or aliphatic polyimides, polyamideimides, epoxy resins having an amine skeleton, and polymeric materials capable of releasing an organic amine by hydrolysis, in an alkaline or acidic solution, gel or sol of a precursor of said zeolite or zeotype material, and reacting the resultant at a suitable temperature for a period such that all or almost all of the polymeric template can be replaced with zeolite or zeotype material. Said foam comprising zeolite or zeotype material has the outer shape and size and the inner sponge or macroporous structure which are the same or similar to those of the polymeric template used.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: August 17, 2004
    Assignee: Sogang University Corporation
    Inventors: Kyung-Byung Yoon, Yun-Jo Lee, Yong-Soo Park, Jin-Seok Lee
  • Patent number: 6693055
    Abstract: The present invention relates to a method for the preparation of a zeolite-substrate composite comprising a patterned zeolite monolayer or multilayer on a substrate, which comprises forming a pattern of a linking compound on the substrate by a selective irradiation with a UV ray, a selective application of a linking compound or a blocking compound, or a selective deposition of a metal, and combining zeolite particles on the portion whereon the linking compound is patterned. The substrate is selected from a group consisting of a substrate having surface hydroxyl groups, a metal capable of being reacted with thiol or amino groups, and a polymeric material having various surface functional groups. The present invention also relates to a zeolite-substrate composite comprising a patterned zeolite monolayer or multilayer on a substrate prepared by said method.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: February 17, 2004
    Assignee: Sogang University Corporation
    Inventors: Kyung-Byung Yoon, Goo-Soo Lee, Kwang Ha, Yun-Jo Lee, Yu-Sung Chun, Yong-Soo Park