To provide a cushion material for a seat which is excellent in riding comfort when travelling on an uneven road surface.SOLUTION: A cushion material for a seat comprises a foam of a composition containing polyol and diphenylmethane diisocyanate-based isocyanate. The foam has: a first region which has a hard segment and a soft segment, and of which Asker F hardness is 20 or more and less than 50 and permeability is 1 to 35 mL/cm2/sec; and a second region of which Asker F hardness is 50 or more and 70 or less and permeability is 1 to 35 mL/cm2/sec, and which is existent adjacent to the first region.SELECTED DRAWING: Figure 1

    【課題】凸凹を有する路面上を走行する際の乗り心地に優れた座席用クッション材及び座席の提供。【解決手段】ポリオールと、ジフェニルメタンジイソシアネート系のイソシアネートと、を含む組成物の発泡体であって、ハードセグメントおよびソフトセグメントを有し、且つ、アスカーF硬度が20以上50未満であり、通気度が1~35mL/cm2/secである第1の領域と、アスカーF硬度が50以上70以下であり、通気度が1~35mL/cm2/secであり、前記第1の領域と隣り合って存在する第2の領域と、を有する発泡体からなる座席用クッション材。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    CUSHION MATERIAL FOR SEAT AND SEAT


    Additional title:

    座席用クッション材及び座席


    Contributors:

    Publication date :

    2022-03-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / 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



    Cushion material, seat cushion material, and seat

    ICHIMURA SHIGEKI / TAKIWAKI KUNIKAZU / ASOBE KUNIO et al. | European Patent Office | 2021

    Free access

    CUSHION MATERIAL, SEAT CUSHION MATERIAL, AND SEAT

    ICHIMURA SHIGEKI / TAKIWAKI KUNIKAZU / ASOBE KUNIO et al. | European Patent Office | 2019

    Free access

    CUSHION MATERIAL FOR SEAT AND SEAT

    ICHIMURA SHIGEKI / TAKIWAKI KUNIKAZU / ORITO HIROYUKI et al. | European Patent Office | 2019

    Free access

    Seat cushion skin, seat cushion, and vehicle seat

    TAKAZAWA HARUMICHI / HASUMI HIDEKI / KAGEYAMA ATSUSHI et al. | European Patent Office | 2024

    Free access

    Vehicle seat cushion material and vehicle seat

    TAKANOHASHI HIROSHI / MIZOI KENSUKE / ABE RYUZABURO et al. | European Patent Office | 2020

    Free access