HYDROLYTICALLY STABLE SELF-HEALING ELASTOMER

    公开(公告)号:US20220243014A1

    公开(公告)日:2022-08-04

    申请号:US17613826

    申请日:2020-06-04

    Abstract: The present invention provides a solution-processable self-healing hydrolytically stable elastomer, a method for the preparation thereof, and articles of manufacture comprising the elastomer. The elastomer comprises polymeric chains comprising units of formula (A1), wherein R is a polybutadiene-containing polyurethane; R1 and R1′ are independently selected from the group consisting of: —H, (C1-C20)alkyl, (C5-C14)aryl, —OR4, —(CO)R5, —O(CO)R6, —(SO)R7, CO—R8, —COOR9, —NO2, and halogen; R2, R2′, R3 and R3′ are independently selected from the group consisting of: —H, (C1-C20)alkyl, and (C5-C14)aryl; R4 to R9 are the same or different, and are independently selected from the group consisting of: —H, (C1-C20)alkyl, and (C5-C14)aryl; m is 4; wherein the elastomer is dynamically crosslinked by aromatic disulfide metathesis, and wherein the elastomer has a water contact angle of above 100 #.

    METHOD AND SYSTEM FOR TREATING CANCER

    公开(公告)号:US20210077462A1

    公开(公告)日:2021-03-18

    申请号:US17025269

    申请日:2020-09-18

    Abstract: The invention provides a method for treating cancer in which a level of reduced folate carrier (RFC) or folylpolyglutamate synthetase (FPGS) in cancer cells of the biopsy is determined. If the level of RFC or FPGS in the cancer cells is below a threshold value, the cancer is treated with an inhibitor of serine-hydroxymethyltransferase (SHMT)1. If the level of RFC or FPGS in the cancer cells is above the threshold value, the cancer is treated with an inhibitor of SHMT2

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