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    ENZYMATIC CONSTRUCTION MATERIAL
    3.
    发明申请
    ENZYMATIC CONSTRUCTION MATERIAL 有权

    公开(公告)号：US20230117517A1

    公开(公告)日：2023-04-20

    申请号：US17943548

    申请日：2022-09-13

    申请人： Worcester Polytechnic Institute

    发明人： Nima Rahbar ,  Suzanne F. Scarlata ,  Shuai Wang

    IPC分类号： C04B26/02 ,  C04B14/06 ,  C04B24/14 ,  C04B14/30

    摘要： Materials and methods for a rapid and effective way to create a carbon negative self-healing construction material are described. The construction material uses sand aggregates, a trace amount of catalyst, a small dosage of scaffolding material with a crosslinking agent, and a calcium source. The curing is performed at a high temperature for a short period or at room temperature for a long period. The catalyst-driven method to bridge the sand particles results in a dense, stiff, strong, and tough structural material, which upon exposure to calcium source and CO2 heals itself repeatably.

    MICROENCAPSULATED THERMOCHROMIC MATERIALS AND USES THEREOF
    6.
    发明申请
    MICROENCAPSULATED THERMOCHROMIC MATERIALS AND USES THEREOF 有权

    公开(公告)号：US20220315832A1

    公开(公告)日：2022-10-06

    申请号：US17838450

    申请日：2022-06-13

    申请人： University of South Florida

    发明人： Manoj Kumar RAM ,  Elias K. STEFANAKOS

    IPC分类号： C09K9/02 ,  B01J13/06 ,  B01J19/12 ,  C04B14/36 ,  C04B16/00 ,  C04B20/10 ,  C04B26/02 ,  C04B28/04

    摘要： A variety of particles forming microencapsulated thermochromic materials. The particles can include a thermochromic core and a metal oxide shell encapsulating the thermochromic core. The thermochromic core can include one or both of an organic thermochromic material and an inorganic salt thermochromic material. In some aspects, the particles include a dye selected from a crystal violet lactone dye, a fluoran dye, and a combination thereof. In still further aspects, the particles include a color developer selected from a hydroxybenzoate, a 4,4′-dihydroxydiphenyl propane, a hydroxycoumarin derivative, a lauryl gallate, and a combination thereof. In some aspects, the metal oxide shell is a TiO2 shell. The particles can be used in cements and paints and for a variety of building materials. Methods of making the particles and building materials and methods of use, for example, for removing a volatile organic carbon from a building material, are also provided.

    Sleeper for a Track Superstructure
    9.
    发明申请
    Sleeper for a Track Superstructure 有权

    公开(公告)号：US20210140120A1

    公开(公告)日：2021-05-13

    申请号：US16605952

    申请日：2018-04-17

    申请人： Vossloh Fastening Systems GmbH

    发明人： Winfried Bösterling ,  Duo Liu

    IPC分类号： E01B3/44 ,  C04B26/02 ,  C04B16/04 ,  C04B14/38

    摘要： The invention relates to a sleeper for the track superstructure, which is manufactured in one piece from a plastic material, with the sleeper having an elongated base shape with two end sections, which are connected by a middle section of the sleeper and held at a distance and on their upper side in each case one contact surface is provided for in each case one rail to be supported on the respective end section with a reinforcement extending in the longitudinal direction of the sleeper being embedded into the middle section. In order to design such a plastic sleeper such that it has optimised strength and can be reliably manufactured even using cost-effective plastic/sand mixtures having a high proportion of sand, the invention proposes that the reinforcement extends over the length of the middle section, that the reinforcement is in each case anchored in the respective end section an edge region of the end sections assigned to the middle section and in that the reinforcement is wholly or partially arranged in the upper quarter of the height of the sleeper.