FLUORINE-CONTAINING ACTIVE ENERGY RAY-CURABLE COMPOSITION, CURED PRODUCT, AND ARTICLE

    公开(公告)号:US20250051505A1

    公开(公告)日:2025-02-13

    申请号:US18719276

    申请日:2022-12-02

    Abstract: The present invention provides a fluorine-containing active energy ray-curable composition containing specific amounts of (A) a fluoropolyether group-containing acrylic compound represented by the following formula: V1—Rf1-Z-Y(X)b (Rf1 is a divalent perfluoropolyether group. Z is a divalent organic group. Y is a (b+1)-valent organic group. X is an (α-substituted) acrylic group-containing monovalent organic group. V1 is H, F, or -Z-Y(X)b. b is 1-10.), (B) an acrylic compound having a viscosity of 5,000 mPa·s or less at 23° C. and having an (α-substituted) acrylic group in one molecule thereof, and (C) a photopolymerization initiator, wherein the viscosity at 23° C. is 10-100,000 mPa·s, and the refractive index at a temperature of 25° C. and a wavelength of 589 nm is 1.390 or less. The fluorine-containing active energy ray-curable composition is capable of being cured by means of active energy rays, such as ultraviolet rays or electron beams, is capable of forming a transparent cured product having a low refractive index and excellent water vapor resistance, and is also capable of having excellent handling properties.

    SILICONE SEPTUM COATING
    5.
    发明公开

    公开(公告)号:US20240150608A1

    公开(公告)日:2024-05-09

    申请号:US18411315

    申请日:2024-01-12

    Inventor: Azhar Khan

    CPC classification number: C09D151/085 A61L29/02 A61L29/103

    Abstract: A silicone septum having a surface coating. The coated silicone septum may be incorporated in an intravenous catheter assembly. The coating reduces static charge among a plurality of vibrating silicone septa during manufacture of the intravenous catheter assembly. The surface coating includes a coating agent selected from a bicarbonate salt and a siloxane polyalkyleneoxide copolymer. The bicarbonate salt may be an alkali metal bicarbonate. The siloxane polyalkyleneoxide copolymer may include copolymer groups selected from ethyleneoxide, octamethylcyclotetrasiloxane, and mixtures thereof. The silicon septum may be coated by contacting an exterior surface of the silicone septum with a coating solution of a solvent and the coating agent for at least 5 minutes. The coating agent has a concentration in the solvent greater than 1 wt. %. Excess coating solution is removed from the exterior surface of the silicone septum. The exterior surface is dried to remove the solvent, forming the surface coating.

    AQUEOUS DISPERSION OF POLYMER ADDITIVE AND PROCESS FOR PREPARING THE SAME

    公开(公告)号:US20230374187A1

    公开(公告)日:2023-11-23

    申请号:US18029122

    申请日:2020-10-28

    CPC classification number: C08F283/124 C08F2/30 C09D151/085

    Abstract: An aqueous dispersion of a polymer additive having a weight average molecular weight of from 2,000 to 25,000 g/mol and comprising, by weight based on the weight of the polymer additive, (i) from 20% to 85% of structural units of an ethylenically unsaturated siloxane monomer; (ii) from 0.1% to 10% of structural units of an ethylenically unsaturated functional monomer carrying at least one functional group selected from an amide, ureido, carboxyl, carboxylic anhydride, hydroxyl, phosphorus acid, or sulfonic acid group, a salt thereof, or mixtures thereof; and (iii) from 5% to 79.9% of structural units of an additional ethylenically unsaturated nonionic monomer. The aqueous dispersion has a coagulum content less than 2,000 ppm after filtration through a 44 micron sieve. A coating composition comprises the aqueous dispersion of the polymer additive can provide coatings with anti-corrosion and/or stain removal properties.

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