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    LOW-FRICTION FLUORINATED COATINGS
    1.
    发明申请
    LOW-FRICTION FLUORINATED COATINGS 审中-公开

    公开(公告)号：US20200208073A1

    公开(公告)日：2020-07-02

    申请号：US16818064

    申请日：2020-03-13

    Applicant: HRL Laboratories, LLC

    Inventor： Andrew P. NOWAK ,  Adam F. GROSS ,  Elena SHERMAN

    IPC: C10M169/04 ,  C10M147/04 ,  C10M107/44 ,  C08G65/34 ,  C09D175/08 ,  C08G18/66 ,  C08G18/38 ,  C08G18/48 ,  C08G18/65 ,  C10M149/20 ,  C10M107/38 ,  C08G18/75 ,  C08G18/50 ,  C08G81/02 ,  C08G81/00

    Abstract: Low-friction fluorinated coatings are disclosed herein. A preferred low-friction material contains a low-surface-energy fluoropolymer having a surface energy between about 5 mJ/m2 to about 50 mJ/m2, and a hygroscopic material that is covalently connected to the fluoropolymer in a triblock copolymer, such as PEG-PFPE-PEG. The material forms a lubricating surface layer in the presence of humidity. An exemplary copolymer comprises fluoropolymers with average molecular weight from 500 g/mol to 20,000 g/mol, wherein the fluoropolymers are (α,ω)-hydroxyl-terminated and/or (α,ω)-amine-terminated, and wherein the fluoropolymers are present in the triblock structure T-(CH2—CH2—O)—CH2—CF2—O—(CF2—CF2—O)m(CF2—O)n—CF2—CH2—(O—CH2—CH2)p-T where T is a hydroxyl or amine terminal group, p=1 to 50, m=1 to 100, and n=1 to 100. The copolymer also contains isocyanate species and polyol or polyamine chain extenders or crosslinkers possessing a functionality of preferably 3 or greater. These durable, solvent-resistant, and transparent coatings reduce insect debris following impact.

    ANTI-FOULING COATINGS FABRICATED FROM POLYMERS CONTAINING IONIC SPECIES
    2.
    发明申请
    ANTI-FOULING COATINGS FABRICATED FROM POLYMERS CONTAINING IONIC SPECIES 审中-公开

    公开(公告)号：US20190177572A1

    公开(公告)日：2019-06-13

    申请号：US16273908

    申请日：2019-02-12

    Applicant: HRL Laboratories, LLC

    Inventor： Andrew P. NOWAK ,  Adam F. GROSS ,  April R. RODRIGUEZ ,  Ashley NELSON

    IPC: C09D175/08 ,  C09D5/16 ,  C08G18/24 ,  C08G18/48 ,  C09D7/63 ,  C09D7/40 ,  C08G18/34 ,  C08G18/08 ,  C08G18/75 ,  C08G18/50 ,  C08G18/38

    Abstract: An anti-fouling coating is provided, containing a continuous matrix comprising a first component; a plurality of inclusions comprising a second component, wherein the first component is a low-surface-energy polymer having a surface energy, and the second component is a hygroscopic material containing one or more ionic species. The low-surface-energy polymer and the hygroscopic material are chemically connected ionically or covalently, such as in a segmented copolymer composition comprising fluoropolymer soft segments and ionic species contained within the soft segments. The continuous matrix and the inclusions form a lubricating surface layer in the presence of humidity. Coefficient-of-friction experimental data is presented for various sample coatings. The incorporation of ionic species into the polymer chain backbone increases the hygroscopic behavior of the overall structure. Improvement in lubrication enables material to be cleared from a surface using the natural motion of an automotive or aerospace vehicle.

    SEGMENTED COPOLYMER COMPOSITIONS AND COATINGS INCORPORATING THESE COMPOSITIONS
    5.
    发明申请
    SEGMENTED COPOLYMER COMPOSITIONS AND COATINGS INCORPORATING THESE COMPOSITIONS 审中-公开
    含有这些组合物的SEGMENTED COPOLYMER组合物和涂料

    公开(公告)号：US20160194574A1

    公开(公告)日：2016-07-07

    申请号：US14829640

    申请日：2015-08-19

    Applicant: HRL Laboratories, LLC

    Inventor： Adam F. GROSS ,  Andrew P. NOWAK

    IPC: C10M107/38 ,  C10M125/26 ,  C08G81/00

    CPC classification number: C08G81/00 ,  C08G18/246 ,  C08G18/3206 ,  C08G18/3812 ,  C08G18/4804 ,  C08G18/4833 ,  C08G18/5015 ,  C08G18/6505 ,  C08G81/025 ,  C09D175/08

    Abstract: Some variations provide a segmented copolymer composition comprising: fluoropolymer first soft segments that are (α,ω)-hydroxyl-terminated and/or (α,ω)-amine-terminated; polyester or polyether second soft segments that are (α,ω)-hydroxyl-terminated and/or (α,ω)-amine-terminated; isocyanate species possessing an isocyanate functionality of 2 or greater; and polyol or polyamine chain extenders or crosslinkers, wherein the molar ratio of the second soft segments to the first soft segments is less than 2.0. Exemplary segmented copolymers are disclosed. The segmented copolymer composition may be present in a low-friction, low-adhesion coating. Such a coating may be characterized by a coefficient of friction, measured at 90% relative humidity, less than 0.7. Such a coating may be characterized by an average kinetic delay of surface ice formation of at least 10 minutes at −10° C. These coatings are useful as bugphobic and icephobic coatings.

    Abstract translation: 一些变化形式提供了一种分段的共聚物组合物，其包含：（α，ω） - 羟基封端和/或（α，ω） - 胺封端的含氟聚合物第一软链段; （α，ω） - 羟基封端和/或（α，ω） - 胺封端的聚酯或聚醚第二软链段; 具有2或更大的异氰酸酯官能度的异氰酸酯物质; 和多元醇或多胺增链剂或交联剂，其中第二软链段与第一软链段的摩尔比小于2.0。 公开了示例性的分段共聚物。 分段共聚物组合物可以存在于低摩擦，低粘附性涂层中。 这种涂层的特征可以在90％相对湿度下测量的摩擦系数小于0.7。 这种涂层的特征可能在于-10°C时表面冰形成的平均动力学延迟至少为10分钟。这些涂层可用作臭虫和防臭涂层。

    FORMULATIONS, METHODS, AND APPARATUS FOR REMOTE TRIGGERING OF FRONTALLY CURED POLYMERS
    6.
    发明申请
    FORMULATIONS, METHODS, AND APPARATUS FOR REMOTE TRIGGERING OF FRONTALLY CURED POLYMERS 审中-公开
    用于远端固化聚合物远程触发的配方，方法和设备

    公开(公告)号：US20150152215A1

    公开(公告)日：2015-06-04

    申请号：US14556090

    申请日：2014-11-28

    Applicant: HRL Laboratories, LLC

    Inventor： Tao XIE ,  Andrew P. NOWAK ,  Thomas BOUNDY

    IPC: C08G59/02 ,  B01J19/08 ,  C09J5/06 ,  C09J163/00

    CPC classification number: C09J5/06 ,  C09J163/00

    Abstract: In some variations, the invention provides a curable adhesive formulation comprising a curable liquid precursor capable of frontal polymerization, wherein the liquid precursor comprises a monomer and a polymerization catalyst, and frontal-polymerization-triggering susceptors in contact with, or contained within, the liquid precursor. The susceptors may include conducting and/or magnetic solid particles capable of induction heating in the presence of a remotely applied electromagnetic field. Other variations provide a polymer-curing system comprising a curable liquid precursor, frontal-polymerization-triggering susceptors, and an apparatus configured to remotely produce an alternating electromagnetic field in line-of-sight with the susceptors (but not necessarily in line-of-sight with the liquid precursor), thereby generating induction heating to initiate the frontal polymerization. The susceptors may be about 0.1 wt % to about 50 wt % of the curable formulation. Other variations provide a method of curing an adhesive joint through an opaque barrier.

    Abstract translation: 在一些变型中，本发明提供了一种可固化粘合剂制剂，其包含能够正面聚合的可固化液体前体，其中液体前体包含单体和聚合催化剂，以及与液体接触或包含在液体中的前部聚合触发感受体 前体 感应器可以包括能够在存在远程施加的电磁场的情况下感应加热的导电和/或磁性固体颗粒。 其它变型提供了一种聚合物固化体系，其包括可固化液体前体，正面聚合触发感受体，以及被配置为远程产生与感受体的视线中的交变电磁场的装置（但不一定是线性的） 观察液体前体），从而产生感应加热以引发正面聚合。 感受体可以是可固化制剂的约0.1重量％至约50重量％。 其它变型提供了通过不透明屏障固化粘合剂接头的方法。

    BUGPHOBIC AND ICEPHOBIC COMPOSITIONS WITH FLUID ADDITIVES
    7.
    发明申请
    BUGPHOBIC AND ICEPHOBIC COMPOSITIONS WITH FLUID ADDITIVES 审中-公开

    公开(公告)号：US20190023910A1

    公开(公告)日：2019-01-24

    申请号：US16144537

    申请日：2018-09-27

    Applicant: HRL Laboratories, LLC

    Inventor： Andrew P. NOWAK ,  April R. RODRIGUEZ ,  Jason A. GRAETZ ,  Adam F. GROSS

    IPC: C09D5/16 ,  C09D167/04 ,  C09D175/04 ,  C09D127/12 ,  C09D7/63 ,  C09D7/65

    Abstract: Some variations provide an anti-fouling segmented copolymer composition comprising: (a) one or more first soft segments selected from fluoropolymers; (b) one or more second soft segments selected from polyesters or polyethers; (c) one or more isocyanate species possessing an isocyanate functionality of 2 or greater, or a reacted form thereof; (d) one or more polyol or polyamine chain extenders or crosslinkers, or a reacted form thereof; and (e) a fluid additive selectively disposed in the first soft segments or in the second soft segments. Other variations provide an anti-fouling segmented copolymer precursor composition comprising a fluid additive precursor selectively disposed in the first soft segments or in the second soft segments, wherein the fluid additive precursor includes a protecting group. The anti-fouling segmented copolymer composition may be present in an anti-ice coating, an anti-bug coating, an anti-friction coating, an energy-transfer material, or an energy-storage material, for example.

    COMPOSITIONS FOR FABRICATING DURABLE, LOW-ICE-ADHESION COATINGS
    8.
    发明申请
    COMPOSITIONS FOR FABRICATING DURABLE, LOW-ICE-ADHESION COATINGS 审中-公开

    公开(公告)号：US20190023830A1

    公开(公告)日：2019-01-24

    申请号：US16144123

    申请日：2018-09-27

    Applicant: HRL Laboratories, LLC

    Inventor： Andrew P. NOWAK ,  April R. RODRIGUEZ ,  Elena SHERMAN ,  Adam F. GROSS

    IPC: C08G18/12 ,  C08G18/48 ,  C08G18/50 ,  C08G18/75 ,  C08G81/02 ,  C09D175/08 ,  C09D127/14 ,  C09D127/16

    Abstract: This invention provides durable, low-ice-adhesion coatings with excellent ice-adhesion reduction. Some variations provide a low-ice-adhesion composition comprising a composite material containing at least a first-material phase and a second-material phase that are nanophase-separated on a length scale from 10 nanometers to less than 100 nanometers, wherein the first-material phase and the second-material phase further are microphase-separated on a length scale from 0.1 microns to 100 microns. The larger length scale of separation is driven by an emulsion process, which provides microphase separation that is in addition to classic molecular-level phase separation. The composite material has a glass-transition temperature above −80° C. The coatings may be characterized by an AMIL Centrifuge Ice Adhesion Reduction Factor up to 100 or more. These coatings are useful for aerospace surfaces and many other applications.

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