Polyurethane Elastomer with High Ultimate Elongation

    公开(公告)号:US20180312623A1

    公开(公告)日:2018-11-01

    申请号:US15582362

    申请日:2017-04-28

    摘要: The present invention relates to polyurethane-urea elastomers with exceptional mechanical properties and enhanced elasticity based on molecular structure analysis. The present invention involves the synthesis of a polyurethane-urea elastomer using a combination of commercially available materials: (1) polyols with ultralow unsaturation and narrow polydispersity, (2) diisocyanates with symmetric steric conformation, and (3) bulky diamines between functional groups. The preparation method for the novel polyurethane-urea is disclosed. The subject elastomers have the highest reported elongation-at-break among known polyurethane elastomers.