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    Emulsion polymers and stain resistant coating compositions made therefrom
    12.
    发明授权
    Emulsion polymers and stain resistant coating compositions made therefrom 有权

    公开(公告)号：US11059980B2

    公开(公告)日：2021-07-13

    申请号：US15777696

    申请日：2016-11-30

    Applicant: Arkema Inc.

    Inventor： Wenjun Wu

    IPC: C08F230/02 ,  C09D143/02 ,  C09D5/02 ,  C08F220/18 ,  C09D133/14 ,  C09D113/02 ,  C09J133/14 ,  C09J143/02 ,  C09D4/00 ,  C09D5/00 ,  C09D133/12

    Abstract: Emulsion polymers and coating compositions made therefrom that exhibit exceptional stain resistance to both hydrophilic and hydrophobic stains. The emulsion polymers include, as polymerized units: a) at least one ethylenically unsaturated nonionic monomer in an amount ranging between about 85 wt. % to less than 100 wt. % based on the overall weight of the polymer composition; b) a first acid monomer in an amount ranging from about 0.1 to 2 wt. %, the first monomer being a strong acid monomer selected as a phosphorus-based acid monomer, a sulfur-based acid monomer, or a mixture thereof, and c) a second acid monomer in an amount ranging from about 0.1 to 2 wt. %, the second monomer being one or more ethylenically unsaturated monomers having at least one carboxyl or carboxylic anhydride functional group. The relative amounts of the first and second acid monomers are such that the ratio of b/c is greater than 0.7.

    Coating Compositions Including Urethane Alkyd and Acrylic Latex Resins
    13.
    发明申请
    Coating Compositions Including Urethane Alkyd and Acrylic Latex Resins 审中-公开

    公开(公告)号：US20200332144A1

    公开(公告)日：2020-10-22

    申请号：US16869704

    申请日：2020-05-08

    Applicant: The Sherwin-Williams Company

    Inventor： Mark A. Schubert

    IPC: C09D143/02 ,  C09D175/04 ,  C09D7/61

    Abstract: Disclosed is a coating composition that generally includes a waterborne alkyd resin including urethane groups and a crosslinking acrylic latex resin. An alkyd resin and an acrylic latex resin can be included in a composition in relative amounts to yield a cured coating that has a higher pendulum hardness than that of a coating formed from an otherwise identical composition that excludes the acrylic latex resin. The composition can be formulated such that solids of said waterborne urethane alkyd resin and solids of said crosslinking acrylic latex resin are present in a mass ratio ranging from 20:80 to 80:20 with respect to one another A method of preparing a coating composition generally includes blending relative amounts of an alkyd resin and an acrylic latex resin.

    BIOCOMPATIBLE POLYMERIC COATING CONTAINING THERAPEUTIC AGENTS
    14.
    发明申请
    BIOCOMPATIBLE POLYMERIC COATING CONTAINING THERAPEUTIC AGENTS 审中-公开

    公开(公告)号：US20200263051A1

    公开(公告)日：2020-08-20

    申请号：US16791429

    申请日：2020-02-14

    Applicant: Acuity Polymers, Inc.

    Inventor： James A. Bonafini ,  Wayne Thomas Ferrar

    IPC: C09D133/14 ,  C09D143/02 ,  A61K47/32

    Abstract: A method of preparing a biocompatible polymeric coating includes preparing an aqueous polymer solution by contacting and reacting methacrylic acid and at least one methacrylate or phosphorylcholine. The methacrylate or phosphorylcholine may include hydroxyethyl methacrylate, polyethylene glycol monomethacrylate, or methacryloyloxyethyl phosphorylcholine. An aqueous coupling agent solution is prepared and is either applied to the substrate surface or is mixed with the polymer solution to form a coating solution. If the coupling agent solution was first applied to the substrate surface, the polymer solution is then applied to the primed substrate surface. Alternatively if a coating solution was created, the coating solution is applied to the substrate surface. In either event, the polymer solution and coupling agent solution react with the substrate to form the biocompatible polymeric coating on the substrate surface.

    Non-halogen flame retardant polymers
    20.
    发明授权
    Non-halogen flame retardant polymers 有权

    公开(公告)号：US10174140B2

    公开(公告)日：2019-01-08

    申请号：US14893557

    申请日：2014-05-23

    Applicant: Lubrizol Advanced Materials, Inc.

    Inventor： John Ta-Yuan Lai ,  Ti Chou

    IPC: C08F30/02 ,  C07F9/09 ,  C08F230/02 ,  C09K21/14 ,  C09D143/02 ,  C08K5/3492 ,  C08L33/08 ,  C08L43/02 ,  C08L75/02 ,  C08L75/04 ,  C08L77/00

    Abstract: Non-halogenated monomers that can be polymerized into flame retardant polymers, and processes to produce the monomers and polymers is provided. In a simplest aspect, there is provided a monomer composition that can comprise a) a group derived from one of a (meth)acrylic acid, (meth)acrylamide, or vinylbenzene, b) a polyphosphate moiety, and c) an amine species. In the monomer composition, the ethylenically unsaturated monomer of (a) is covalently bonded directly or through a linking group to the moiety of b), forming a precursor monomer unit. The amine species of c) is in complex with the precursor monomer unit. The polymer can be a homopolymer of the monomer composition, or a copolymer of the monomer composition having varying a), b) and c). In one embodiment, the polymer can additionally comprise ethylenically unsaturated monomers not covalently bonded to a polyphosphate moiety and/or can be cross-linked with a cross-linking agent such as resorcinol.

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