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公开(公告)号：US20220259360A1
公开(公告)日：2022-08-18
申请号：US17624652
申请日：2020-07-03
Inventor： Muhammad Rabnawaz , Muhammad Naveed
IPC: C08F283/12 , C09D5/16 , C08F2/50
Abstract: The disclosure generally relates to omniphobic compatibilizers, which include a polymerization reaction product between a first vinyl monomer, optionally a second vinyl crosslinking monomer, and a functionalized omniphobic polymer. The functionalized omniphobic polymer can include two or more vinyl functional groups or at least one free radical initiator functional group such that the reaction product forming the omniphobic compatibilizer can be a vinyl or free-radical polymerization product. The omniphobic compatibilizer can be incorporated into a UV-curable or a non-UV-curable thermoset omniphobic composition. The UV-curable composition can be a crosslinked polymerization reaction product between the omniphobic compatibilizer, a third vinyl monomer, and a fourth polyvinyl crosslinking monomer. The non-UV-curable composition can be a crosslinked polymerization reaction product between the omniphobic compatibilizer, a first thermosetting component, and a second thermosetting component. The thermoset omniphobic composition can be a coating on a substrate in a corresponding coated article.
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公开(公告)号：US20220162402A1
公开(公告)日：2022-05-26
申请号：US17532610
申请日：2021-11-22
Inventor： Muhammad Rabnawaz , Muhammad Naveed
Abstract: The disclosure relates to thermally reversibly crosslinked polyolefins (TRC-PO) and methods for making the same. A TRC-PO can be formed by reactive melt-processing a mixture including (i) a polyolefin, (ii) an initiator, and (iii) a reversible crosslinker. The reversible crosslinker includes (A) a grafting agent moiety selected from unsaturated cyclic anhydrides, unsaturated cyclic imides, cyclic nitroxides, and ring-opened analogs thereof, and (B) a crosslinking moiety bound to the cyclic grafting agent moiety. This reactive melt-processing, for example including reactive extrusion, forms a thermally reversibly crosslinked (TRC) polyolefin with polyolefin chains reversibly crosslinked via the reversible crosslinkers, which provide dynamic covalent bonds, such as siloxanes and esters, that are amenable to melt re-processing to re-from or otherwise re-use the TRC-PO while still retaining the reversible crosslinks after re-processing. Catalysts and additives such as rheology modifiers can be added to the melt-processing mixture.
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公开(公告)号：US20220000715A1
公开(公告)日：2022-01-06
申请号：US17480660
申请日：2021-09-21
Applicant: Board of Trustees of Michigan State University , Board of Regents of the University of Nebraska
Inventor： Bahar Aliakbarian , Muhammad Rabnawaz , Susan E. Selke , Krystal Cheng , Arun Ross , Austin Cozzo , Anurag Chowdhury , Ali Tamayol , Carina Russell , Prem Chahal
Abstract: A medication bottle includes an outer container wall, an inner container wall and a fluid, such as an aversive liquid, located between the walls. In another aspect, the fluid is located within separate compartments or channels located between the walls where the walls contact or are secured to each other. A further aspect provides a removeable cap including multiple sensors, at least one of which is a biometric sensor.
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公开(公告)号：US11135617B2
公开(公告)日：2021-10-05
申请号：US16962388
申请日：2020-02-11
Inventor： Muhammad Rabnawaz
IPC: B05D5/08 , C08L75/04 , C08G18/10 , C08G18/24 , C08G18/32 , C08G18/48 , C08G77/26 , C08G77/458 , C08G77/46 , C09D175/04 , B05D7/14 , C09D163/00 , B05D3/10
Abstract: The disclosure relates to an omniphobically coated fluid channel including a channel defining an interior channel surface and a flow volume, and a thermoset omniphobic composition as a coating on the interior channel surface. The thermoset omniphobic composition (such as an omniphobic polyurethane or epoxy composition) includes a thermoset polymer with first, second, and third backbone segments. The first, second, and third backbone segments can correspond to urethane or urea reaction products of polyisocyanate(s), amine-functional omniphobic polymer(s), and polyol(s), respectively, for omniphobic polyurethanes. Similarly, the first, second, and third backbone segments can correspond to urea or beta-hydroxy amine reaction products of polyamine(s), isocyanate-functional omniphobic polymer(s), and polyepoxide(s), respectively, for omniphobic epoxies. The thermoset omniphobic composition coating protects the underlying channel material (such as metal material) from corrosion, and it can further reduce the pressure drop of fluid flowing through the channel. The omniphobically coated fluid channel can be used as a component of a heat transfer apparatus.
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公开(公告)号：US11118003B2
公开(公告)日：2021-09-14
申请号：US16764255
申请日：2018-11-15
Inventor： Muhammad Rabnawaz , Fahad Khan , Nazim Uddin
IPC: C08G18/78 , C08G18/20 , C08G18/81 , C08G18/63 , C08G18/32 , C08G18/40 , C08G18/48 , C08G18/71 , C08G18/75 , C09D175/04 , C08G2/00 , C08G18/24 , C08G18/61 , C08G18/62 , C08G18/65 , C08G18/73 , C08G18/76 , C08G18/77 , C08G18/79
Abstract: The disclosure relates to a thermoset omniphobic composition, which includes a thermoset polymer with first, second, and third backbone segments, urethane groups linking the first and third backbone segments, and urea groups linking the first and second backbone segments. The first, second, and third backbone segments generally correspond to urethane or urea reaction products of polyisocyanate(s), amine-functional hydrophobic polymer(s), and polyol(s), respectively. The thermoset omniphobic composition has favorable omniphobic properties, for example as characterized by water and/or oil contact and/or sliding angles. The thermoset omniphobic composition can be used as a coating on any of a variety of substrates to provide omniphobic properties to a surface of the substrate. Such omniphobic coatings can be scratch resistant, ink/paint resistant, dirt-repellent, and optically clear. The thermoset omniphobic composition can be applied by different coating methods including cast, spin, roll, spray and dip coating methods.
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Patent Agency Ranking
公开(公告)号：US20240084166A1
公开(公告)日：2024-03-14
申请号：US18367079
申请日：2023-09-12
Inventor： Muhammad Rabnawaz , Ajmir Khan
IPC: C09D175/04 , C09D5/00
CPC classification number: C09D175/04 , C09D5/00
Abstract: The disclosure relates to an omniphobic composition concentrate including 2 wt. % to 60 wt. % of at least one of a polyisocyanate and monomer units thereof in polymerized form, 30 wt. % to 85 wt. % of at least one of a polyol and monomer units thereof in polymerized form, 10 wt. % to 50 wt. % of at least one of a functionalized omniphobic polymer and monomer units thereof in polymerized form, and up to 60 wt. % of at least one diluent. The omniphobic composition further includes a polymer with monomer units of the polyisocyanate, monomer units of the polyol, and monomer units of the functionalized omniphobic polymer. The omniphobic composition is in the form of a gel-free liquid, and it can be cured with a polyol/polyisocyanate polyurethane base formulation to form a thermoset omniphobic composition.
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公开(公告)号：US20230265242A1
公开(公告)日：2023-08-24
申请号：US18005227
申请日：2021-07-14
Inventor： Muhammad Rabnawaz
IPC: C08G63/91 , C08K5/1515 , C08J11/22
CPC classification number: C08G63/912 , C08K5/1515 , C08J11/22 , C08J2367/04
Abstract: The disclosure relates to a recyclable polyester composition including a polyester, an epoxide compound, and optionally a capping agent. The epoxide compound can be a sterically hindered epoxide and/or a polyfunctional epoxide. The capping agent can be selected and included based on its ability to react with in situ-generated hydroxy groups resulting from reaction with the polyester and the epoxide compound. The capping agent is included when the epoxide compound is a polyfunctional epoxide in order to control or limit branching during chain extension. The inclusion of the epoxide compound provides a controlled chain extension of the polyester subjected to thermal processing in a way that controls, limits, or prevents branching and crosslinking, but which also increases polymer molecular weight in a manner that offsets the molecular weight reduction associated with thermal processing in the absence of the disclosed epoxide compounds.
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公开(公告)号：US11529648B2
公开(公告)日：2022-12-20
申请号：US17419781
申请日：2020-01-29
Inventor： Muhammad Rabnawaz , Ajmir Khan
IPC: B05D7/00 , C09D175/12 , C09D167/04 , C09D167/02 , C09D131/04 , C09D183/04 , B05D5/00
Abstract: The disclosure relates to a self-healing laminate composition. The composition includes a first, self-healing layer with a self-healing polymer and a second, mechanical layer adjacent to the first layer. The second layer includes any desired polymer, for example a crosslinked polymer, a thermoplastic polymer, or a functional thermoset polymer. Self-healing polymers with dynamic covalent bonds are suitable, for example those with dynamic urea bonds and/or dynamic urethane bonds. A self-healing polymer that is damaged can undergo autonomous repair when separated surfaces re-contact each other due to the soft nature of the self-healing polymer, whereupon reversible bonds can reform to rejoin and repair the damaged self-healing polymer. When the self-healing laminate according to the disclosure is damaged, the self-healing mechanism of the first layer can cause the repair of both layers. The self-healing laminate composition can be used as a coating on any of a variety of substrates to provide self-healing properties to a surface of the substrate.
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公开(公告)号：US11440868B2
公开(公告)日：2022-09-13
申请号：US16935364
申请日：2020-07-22
Inventor： Muhammad Rabnawaz
IPC: C07C69/01 , C07C43/16 , C09J133/08 , C09J133/12 , B32B7/12 , B32B5/02 , B32B7/06 , B32B15/14 , B32B27/10 , B32B9/06 , B32B15/10 , B32B15/12 , B32B17/10 , B32B27/08 , B32B27/12 , B32B29/02 , B32B21/04 , B32B37/12
Abstract: The disclosure relates to a reversible adhesive composition including a copolymer between a vinyl spacer monomer unit and a vinyl reversible binder monomer unit. Each monomer unit can be based on acrylate monomer, a vinyl ester monomer, or a vinyl ether monomer, with the spacer monomer unit generally having a shorter pendant chain (such as 1-3 carbon atoms) and the reversible binder monomer unit having a longer pendant chain (such as 3-20 carbon atoms). A corresponding article includes first and second surfaces (or substrates) that are in contact with and bonded to the reversible adhesive composition at an interface therebetween. The reversible adhesive composition generally involves non-covalent and/or non-ionic bonding forces, for example H-bonding, permanent dipole, electron donor-acceptor moieties, and/or van der Waals forces, between the copolymer chains. The first and second surfaces can be repeatedly bonded, separated, and re-bonded while retaining the adhesive strength of the reversible adhesive composition.
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公开(公告)号：US20220145088A1
公开(公告)日：2022-05-12
申请号：US17581066
申请日：2022-01-21
Inventor： Muhammad Rabnawaz , Fahad Khan
IPC: C09D5/00 , C09D163/00 , C09D183/08 , C09D175/04
Abstract: The disclosure relates to methods for forming an omniphobic thermoset composition, such as an omniphobic polyurethane or epoxy composition. First and second thermosetting components are applied to a substrate and partially cured. A functionalized hydrophobic/oleophobic/omniphobic polymer which is reactive with at least the first thermosetting component is then applied to the coated substrate, which is then further cured to form a thermoset omniphobic coating on the substrate. The thermoset omniphobic composition has favorable omniphobic properties, for example as characterized by water and/or oil contact and/or sliding angles. The thermoset omniphobic composition can be used as a coating on any of a variety of substrates to provide omniphobic properties to a surface of the substrate. Such omniphobic coatings can be scratch resistant, ink/paint resistant, and optically clear. The thermoset omniphobic composition can be applied by different coating methods including cast, spin, roll, spray and dip coating methods.
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