This invention is based upon the discovery that micronized solution styrene-butadiene rubber from postconsumer sources can be included in rubber formulations without severely compromising abrasion resistance. The micronized solution styrene-butadiene rubber utilized in the rubber formulations of this invention can be made by cryogenic grinding postconsumer rubber products using conventional procedures. For instance, it can be made by cryogenically grinding a tire tread containing a high level of solution styrene-butadiene rubber. The micronized solution styrene-butadiene rubber can then be blending into desired virgin rubbers and cured without significantly compromising the abrasion resistance of the rubber formulation. The rubber formulation of this invention is comprised of a natural or synthetic rubber and from 1 weight percent to 30 weight percent of a micronized rubber composition containing at least 10 weight percent solution styrene-butadiene rubber and having a particle size of 40 mesh to 200 mesh.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Recycled micronized rubber formulation having improved abrasion resistance


    Beteiligte:

    Erscheinungsdatum :

    2017-11-14


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED , Vorbereiten oder Vorbehandeln der zu verformenden Masse / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS / B60C VEHICLE TYRES , Fahrzeugreifen / B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS , Transport- oder Lagervorrichtungen, z.B. Förderer zum Laden oder Abladen / C08J Verarbeitung , WORKING-UP / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



    RECYCLED MICRONIZED RUBBER FORMULATION HAVING IMPROVED ABRASION RESISTANCE

    JASIUNAS CHAD AARON / PAPP FRANK P / ROSENMAYER CHARLES T et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    RECYCLED MICRONIZED RUBBER FORMULATION HAVING IMPROVED ABRASION RESISTANCE

    JASIUNAS CHAD AARON / PAPP FRANK P / ROSENMAYER CHARLES T et al. | Europäisches Patentamt | 2016

    Freier Zugriff

    Rubber composition for tire tread having improved abrasion resistance and rolling resistance

    KANG JONG HYUB | Europäisches Patentamt | 2019

    Freier Zugriff

    TREAD RUBBER COMPOUNDS HAVING IMPROVED ABRASION RESISTANCE USING FUNCTIONALIZED LIQUID POLYBUTADIENE

    RANDALL AMY / AGARWAL SHEEL / HERGENROTHER WILLIAM | Europäisches Patentamt | 2018

    Freier Zugriff

    Advances in micronized rubber powder

    Papp, F.P. | Tema Archiv | 2012