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1.发明公开公开(公告)号：US20240132651A1
公开(公告)日：2024-04-25
申请号：US18278200
申请日：2022-02-22
Inventor： Muhammad Rabnawaz , Muhammad Naveed
IPC: C08F299/00 , C08F255/02 , C08L23/06
CPC classification number: C08F299/00 , C08F255/023 , C08L23/06 , C08F2438/02 , C08L2205/025 , C08L2205/03 , C08L2205/08 , C08L2207/062
Abstract: The disclosure relates to the functionalization of a carbon-carbon backbone (CCB) polymer using a (cyclic) grafting agent, an initiator, and optionally a reversible radical trapping agent. The grafting agent and/or initiator can be particularly selected in terms of their surface energy and/or half-life, respectively, to limit or control undesirable effects associated with reactive melt-processing, such as excessive crosslinking, chain scission, or grafting agent homopolymerization, as well as to improve or control desirable effects associated with reactive melt-processing, such as improved relative graft uniformity or homogeneity on the CCB polymer. In some cases, the grafting agent can further include a functional group to impart some additional or new chemical or physical property to the CCB polymer. In some cases, the reactively melt-processed mixture includes two or more different polymers that are compatibilized via the grafting agent.
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公开(公告)号：US20230321951A1
公开(公告)日：2023-10-12
申请号：US18133113
申请日：2023-04-11
Inventor： Muhammad Rabnawaz , Mohamed Ahmed Abdelwahab
CPC classification number: B32B7/027 , B32B27/08 , B32B27/36 , B32B27/32 , B32B2307/7242 , B32B2307/7376 , B32B2307/30 , B32B2307/31 , B32B2305/70 , B32B2250/03 , B32B2439/70
Abstract: The disclosure relates to multilayer laminate compositions including opposing first and second polymeric layers, typically with an intervening gas and/or moisture barrier layer. The first polymeric layer incudes a first polymer, which can be selected based on desired mechanical and/or chemical properties. The second polymeric layer is a heat-sealable analog of the first polymeric layer, and it can include a blend of the first polymer along with a second polymer having a lower melting temperature, or a second polymer that includes monomer units of the first polymer copolymerized with a second monomer to provide a lower melting temperature for the second polymer relative to the first polymer. The improved heat-sealing properties of the second polymeric layer permits convenient packaging of items, and the common polymeric components between the first and second polymeric layers facilitates recycling and reuse of the multilayer laminate composition because of its substantially unimaterial nature.
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公开(公告)号：US11779517B2
公开(公告)日：2023-10-10
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：US11746176B2
公开(公告)日：2023-09-05
申请号：US17624652
申请日：2020-07-03
Inventor： Muhammad Rabnawaz , Muhammad Naveed
IPC: C08F2/50 , C08F283/12 , C09D5/16
CPC classification number: C08F283/124 , C08F2/50 , C09D5/1675
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：US20210024452A1
公开(公告)日：2021-01-28
申请号：US16935364
申请日：2020-07-22
Inventor： Muhammad Rabnawaz
IPC: C07C69/01 , C09J133/12 , C09J133/08 , C07C43/16 , B32B7/12 , 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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Patent Agency Ranking
公开(公告)号：US20250083429A1
公开(公告)日：2025-03-13
申请号：US18580263
申请日：2022-07-22
Inventor： Muhammad Rabnawaz
Abstract: The disclosure relates to polyester-based multilayer plastic (MLP) articles having improved heat sealability, improved gas barrier properties, and/or improved mechanical properties. The MLP article includes first, second, and third polyester layers in a laminate or composite structure. The first polyester layer is a heat-scalable layer, the second polyester layer is a gas-barrier layer, and the third polyester layer is a functional layer providing improved mechanical or printability properties. The MLP article provides desired structural and functional properties for a wide variety of packaging applications, and the use of polyester components for each layer in the MLP article facilitates multiple effective end-of-life recycling options, including mechanical and chemical recycling routes.
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公开(公告)号：US12018136B2
公开(公告)日：2024-06-25
申请号：US17532610
申请日：2021-11-22
Inventor： Muhammad Rabnawaz , Muhammad Naveed
CPC classification number: C08J3/243 , C08J11/18 , C08K5/0025 , C08K5/053 , C08K5/14 , C08K5/1539 , C08K5/20 , C08L51/06 , C08J2323/06 , C08J2323/12 , C08L2207/062 , C08L2312/00 , C08L2314/00
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：US11155732B2
公开(公告)日：2021-10-26
申请号：US17269484
申请日：2019-08-21
Inventor： Muhammad Rabnawaz , Zhao Li
IPC: C09D183/08 , B05D5/08 , B05D3/02 , B05D7/00 , B05D7/02
Abstract: The disclosure relates to omniphobic coatings, related articles including such coatings, and related method for forming such coatings or articles, for example biobased and/or biodegradable omniphobic coatings. The omniphobic coating includes a reaction product between an amino-functional polymer and an amino-reactive functionalized omniphobic polymer having a glass transition temperature (Tg) of 60° C. or less. The omniphobic coating has a weight ratio of amino-functional polymer relative to functionalized omniphobic polymer of at least 1 or 2. A corresponding omniphobic coated article can include the omniphobic coating on a porous substrate such as a cellulosic or paper substrate, for example to provide a water- and oil/fat/grease-resistant coating for a paper-based product. The omniphobic coating can be formed in a reaction medium before being applied to the substrate, or the omniphobic coating can be formed on the substrate with serial application of the amino-reactive functionalized omniphobic polymer and the amino-functional polymer thereon. This disclosure provides a closed loop circular economy approach for fluorine-free, water- and grease-resistant paper as the coating can be easily separated from the pulp/fiber of the paper. The recycled pulp can be used for paper making, while the separated coating in micelle form can be used for recoating.
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公开(公告)号：US11015009B2
公开(公告)日：2021-05-25
申请号：US15983312
申请日：2018-05-18
Inventor： Muhammad Rabnawaz
IPC: C08F283/02 , C08G64/34 , C08G64/02
Abstract: An unsaturated polycarbonate has the structure: wherein X and Y are each an OH group; a transition metal and an OH group; an OH group and a COOH group; or one or both of X and Y is independently —NH2, —SH, C═C, N3, C—C triple bond, C═C, an o-tosylate, or a halogen; m is 0 to 30,000 and n is 1 to 30,000, and (m+n) is 2 or greater; R1 is a C3-C20 group chosen from particular groups; R2 is H or a second similar C3-C20 group, and R3 is optionally a third C3-C20 group having one or more C═C terminal and/or internal double bonds; and R4 is optionally H or a fourth similar C3-C20 group optionally having one or more C═C terminal and/or internal double bonds; or R3 and R4 form a ring structure having one or more C═C double bonds and having 4 to 20 carbon atoms.
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10.发明申请公开(公告)号：US20200048459A1
公开(公告)日：2020-02-13
申请号：US16535689
申请日：2019-08-08
Inventor： Muhammad Rabnawaz
IPC: C08L75/04 , C08G18/32 , C08G18/48 , C08G18/38 , C08G18/75 , C08G18/76 , C08L83/04 , B05D3/10 , B05D5/08
Abstract: The disclosure relates to a thermoset omniphobic composition (such as an omniphobic polyurethane or epoxy composition) which 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 has favorable omniphobic properties, for example as characterized by water and/or oil contact and/or sliding angles. The thermoset omniphobic composition further has favorable barrier properties, for example with respect to water vapor and oxygen transmission as well as water absorption. 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.
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