Single-use disposable oxygen sensor

    公开(公告)号:US11408848B2

    公开(公告)日:2022-08-09

    申请号:US16695902

    申请日:2019-11-26

    发明人: Bong Kyun Oh

    摘要: An electrochemical oxygen sensor includes a sensing surface having a working electrode and a reference electrode, a hydrophilic layer formed from an oxygen diffusion-limiting layer emulsion overlaying the working electrode and a hydrophobic membrane formed from a hydrophobic solution disposed over the hydrophilic layer. The hydrophilic layer contains an epoxy network and a hydrophilic polymer. The hydrophobic layer contains an acetate copolymer and a cross-linking agent that reacts with the liquid epoxy resin in the hydrophilic layer forming the epoxy network where the hydrophobic member is water vapor and oxygen permeable.

    AQUEOUS EPOXY RESIN COMPOSITION AND CURED PRODUCT OF SAME

    公开(公告)号:US20220010054A1

    公开(公告)日:2022-01-13

    申请号:US17295241

    申请日:2019-11-01

    发明人: Takuma HANAOKA

    摘要: Provided is a water-based epoxy resin composition and a cured product thereof, the water-based epoxy resin composition obtained by blending a water-based epoxy resin (A) and a curing agent composition (B) containing a reaction product (b1) of epichlorohydrin and an amine compound represented by the following formula (1), the water-based epoxy resin composition having a content ratio of the component (A) and the component (B) defined as [number of epoxy groups in component (A)/number of active amine hydrogens in component (B)] of 1/1.1 to 1/0.3: H2N—CH2—A—CH2—NH2   (1) wherein A is a 1,2-phenylene group, a 1,3-phenylene group, or a 1,4-phenylene group.

    Polymer coatings
    15.
    发明授权

    公开(公告)号:US11098203B2

    公开(公告)日:2021-08-24

    申请号:US16334650

    申请日:2017-08-30

    摘要: The application is directed to polymer coatings which can be modified to control biointerfacial interactions including biofilm formation and protein adsorption onto said coatings. The polymer coatings comprise a First Component comprising epoxide or alkenyl groups, and a Second Component comprising at least one amine group. The polymer coatings further comprise at least one bioactive agent which may control said biofilm formation and/or protein adsorption. Also disclosed herein are methods for producing said coatings incorporating bioactive molecules in one or two step procedures on a substrate. The polymer coating may be immobilised on the substrate via the reaction of functional groups present on the First Component and/or Second Component with complimentary functional groups disposed on at least one surface of the substrate.

    Amine for low-emission epoxy resin compositions

    公开(公告)号:US11046809B2

    公开(公告)日:2021-06-29

    申请号:US15752814

    申请日:2016-09-16

    摘要: The use of an amine of formula (I) as a component of a hardener for epoxy resins, hardeners for epoxy resins containing the amine of formula (I), and resultant epoxy resin compositions which can particularly be used as low-emission room-temperature-curing epoxy-resin coatings with high hardness and surface quality. The amine of formula (I) is low-odour and a very successful diluent for epoxy resin compositions. It is particularly obtained by reductive alkylation from 1,2-ethylenediamine or 1,2-propylenediamine and an aldehyde or ketone.

    Toughened epoxy resin composition
    18.
    发明授权

    公开(公告)号:US10947337B2

    公开(公告)日:2021-03-16

    申请号:US16155008

    申请日:2018-10-09

    发明人: Nobuo Miyatake

    摘要: A toughened epoxy resin composition includes an end-capped polyalkylene oxide (A), an epoxy resin (B), an epoxy curing agent (C), and a core shell polymer (D). The end-capped polyalkylene oxide (A) has a number average molecular weight of 1500 to 5000, and 40% or more of a total number of ends of the end-capped polyalkylene oxide (A) are capped with at least one selected from the group consisting of an alkyl group, an allyl group, and an aryl group. A weight ratio of the end-capped polyalkylene oxide (A) to the core shell polymer (D) is 10/90 to 90/10. The core shell polymer (D) comprises a core layer in an amount of 70 to 95% by weight and the core layer is one or more selected from the group consisting of diene rubber, (meth)acrylate rubber, organosiloxane rubber, styrene polymer, and (meth)acrylate polymer.