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Patent Agency Ranking
公开(公告)号：US11325925B2
公开(公告)日：2022-05-10
申请号：US16643809
申请日：2018-09-04
IPC: C07F7/08 , A61Q17/04 , A61K8/58 , C09D5/32 , C08F279/02
Abstract: Herein polymers and particles which comprise a plurality of dihydropyridazine or hydropyridazine functional groups are described. Methods for their formation and specific monomers which may be used in their formation are also described. The polymers and particles are UV absorbing, hydrogen-donor antioxidant materials which signal a depletion of antioxidant ability by a decrease in visible fluorescence. These polymers and particles may be used as UV protectants for a variety of materials and substrates and may even be used in a topically applied formulation for human skin.
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公开(公告)号：US20200270281A1
公开(公告)日：2020-08-27
申请号：US16643809
申请日：2018-09-04
Inventor： Douglas A. Loy , Robb E. Bagge , Wenmo Sun , Nanayakkarawasan Nanayakkara
IPC: C07F7/08 , A61Q17/04 , A61K8/58 , C09D5/32 , C08F279/02
Abstract: Herein polymers and particles which comprise a plurality of dihydropyridazine or hydropyridazine functional groups are described. Methods for their formation and specific monomers which may be used in their formation are also described. The polymers and particles are UV absorbing, hydrogen-donor antioxidant materials which signal a depletion of antioxidant ability by a decrease in visible fluorescence. These polymers and particles may be used as UV protectants for a variety of materials and substrates and may even be used in a topically applied formulation for human skin.
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3.发明申请公开(公告)号：US20180258256A1
公开(公告)日：2018-09-13
申请号：US15917236
申请日：2018-03-09
Inventor： Douglas A. Loy , Robb E. Bagge , Wenmo Sun
IPC: C08K5/3477 , C07D257/08 , C08K5/00 , C07D231/10 , C08L25/06 , C08L23/06 , C08L23/12 , C08L57/00
CPC classification number: C08K5/3477 , C07C7/00 , C07D231/10 , C07D257/08 , C08J2300/22 , C08J2300/24 , C08J2300/26 , C08K5/005 , C08L23/06 , C08L23/12 , C08L25/06 , C08L57/00 , C08L2201/08 , C09D5/086 , C09D7/48 , C07C15/44
Abstract: Hydrotetrazine compounds having antioxidant properties and uses thereof are described herein. These compounds may be dihydrotetrazines, tetrahydrotetrazines, or hexahydrotetrazines that can be utilized as antioxidants for use in thermoplastics, thermosets and elastomers; free radical inhibitors to stabilize reactive chemicals, such as monomers against free radical polymerizations; and as anticorrosion agents in coatings to protect against metal oxidation. The hydrogenated tetrazines can donate hydrogen atom equivalents to terminate radical chain reactions. These compounds can change colors to signal when oxidation has occurred, and can be further recycled by reduction reactions.
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公开(公告)号：US10731018B2
公开(公告)日：2020-08-04
申请号：US16006662
申请日：2018-06-12
Inventor： Douglas A. Loy , Robb E. Bagge , Wenmo Sun
Abstract: Antioxidant polymer foams and uses thereof are described herein. These foams are synthesized using a Carboni-Lindsey reaction of 1,2,4,5-tetrazine with a polymer having alkenyl functional groups. The foams feature dihydropyridazine functional groups which can be oxidized to consume surrounding reactive oxidizing chemicals and are consequently antioxidant.
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公开(公告)号：US20180291170A1
公开(公告)日：2018-10-11
申请号：US16006662
申请日：2018-06-12
Inventor： Douglas A. Loy , Robb E. Bagge , Wenmo Sun
CPC classification number: C08J9/108 , C08C19/10 , C08C19/22 , C08F36/045 , C08F36/06 , C08F36/08 , C08J9/02 , C08J2309/00 , C08J2347/00
Abstract: Antioxidant polymer foams and uses thereof are described herein. These foams are synthesized using a Carboni-Lindsey reaction of 1,2,4,5-tetrazine with a polymer having alkenyl functional groups. The foams feature dihydropyridazine functional groups which can be oxidized to consume surrounding reactive oxidizing chemicals and are consequently antioxidant.
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