Enzymatic self-cleaning sealants
    3.
    发明授权

    公开(公告)号:US11879048B2

    公开(公告)日:2024-01-23

    申请号:US17167053

    申请日:2021-02-03

    摘要: Sealants and caulks (i.e., polymeric fillers) disclosed herein are polymeric fillers that comprises a polymeric material composition and one or more lipolytic enzymes dispersed within the polymeric material composition. In preferred embodiments, the polymeric material composition is an acrylic latex sealant such as that in the form of a caulk and the one or more lipolytic enzymes comprises a lipase such as, preferably, a triacylglycerol lipase. Advantageously, the one or more lipolytic enzymes of such sealants and caulks degrades lipid-containing contaminants and resulting lipid-containing stains that contain lipids. The degradation is a result of the ability of a lipolytic enzyme to catalyze a reaction on a lipid-containing substance (i.e., a substrate) to hydrolyze or move (e.g., intra-esterification) ester bonds of such lipid-containing substance. This lipid-degradation functionality at least partially inhibits the growth of such mold and mildew resulting from exposure to lipid-containing contaminants.

    PLASTICIZER COMPOSITION FOR VINYL CHLORIDE RESIN, PLASTISOL, AND COATING FILM THEREOF

    公开(公告)号:US20240309177A1

    公开(公告)日:2024-09-19

    申请号:US18576326

    申请日:2022-06-02

    申请人: DIC Corporation

    摘要: A plasticizer composition for a vinyl chloride resin which can impart an excellent plasticization property and cold resistance to a vinyl chloride resin plastisol and is excellent in a non-bleeding property is provided. Specifically, a plasticizer composition for a vinyl chloride resin including an aliphatic diester (A) of an aliphatic dicarboxylic acid having 2 to 12 carbon atoms and an aliphatic monoalcohol having 4 to 18 carbon atoms, an aromatic diester (B) of an aromatic monocarboxylic acid having 6 to 12 carbon atoms and a glycol having 2 to 12 carbon atoms, and a phthalate (C), in which aliphatic diester (A):aromatic diester (B)=65:35 to 95:5 (mass ratio) is satisfied and (aliphatic diester (A)+aromatic diester (B)):phthalate (C)=5:95 to 35:65 (mass ratio) is satisfied.