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公开(公告)号：US20220177705A1
公开(公告)日：2022-06-09
申请号：US17681788
申请日：2022-02-27
发明人： John Almey , Domenic Di Mondo
摘要： Asphalt formulations containing ground tire rubber and/or plastics can be modified by polymers, oligomers, and waxes made from polymeric material. The addition of polymer, oligomer, or wax can improve stability of ground tire rubber and/or plastic in the asphalt leading to lower formulation costs for polymer modified asphalt producers. In addition, these stable formulations can reduce risk of rutting, and cracking in asphalt roads. The polymer, oligomer, or wax can be made by catalytic depolymerization and/or thermal degradation of polymeric material. The polymeric material can be polystyrene, polypropylene, polyethylene, a combination of polypropylene and polyethylene or recycled plastics.
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公开(公告)号：US20190194375A1
公开(公告)日：2019-06-27
申请号：US16293792
申请日：2019-03-06
发明人： Domenic Di Mondo , Benjamin Scott
IPC分类号： C08F257/02 , C08J11/16 , B09B3/00
CPC分类号： C08F257/02 , B09B3/0083 , C08F8/50 , C08J11/16 , C08J2325/06 , C08L2207/20 , Y02W30/705 , C08F210/14 , C08F112/08
摘要： A system for continuously treating recycled polystyrene material includes a hopper/densifier configured to feed recycled polystyrene material into the system. An extruder can turn the recycled polystyrene material into a molten material. In some embodiments, the extruder uses thermal fluids, electric heaters, and/or a separate heater. Solvents, such as toluene, xylenes, cymenes, and/or terpinenes can aid in generating the molten material. The molten material can be depolymerized in a reactor and a catalyst can be used to aid the depolymerizing. In certain embodiments, the catalyst is contained in a permeable container. In some embodiments, copolymers/monomers are grafted onto the depolymerized material. The depolymerized molten material can be cooled via a heat exchanger. The product can be isolated by extraction, distillation, and/or separation. In some embodiments, the product is treated through filtration and absorption media. In some embodiments, multiple reactors are used.
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公开(公告)号：US11279811B2
公开(公告)日：2022-03-22
申请号：US16803427
申请日：2020-02-27
发明人： Domenic DiMondo , Chris Guillon
摘要： An improved method forms and employs a wax to modify asphalt. The method includes: (a) selecting a solid polymeric material, (b) heating the solid polymeric material in an extruder to produce a molten polymeric material, (c) filtering the molten polymeric material, (d) placing the molten polymeric material through a chemical depolymerization process in a reactor to produce a depolymerized polymeric material, and (e) adding the depolymerized material to a pre-wax mixture to produce a polymer-modified asphalt. The addition of wax reduced the mixing time necessary to achieve improved polymer dispersion compared to the control formulation modified bitumen and reduced the viscosity of the neat bitumen. Pre-polymer addition of wax is detrimental to most properties of the resulting modified asphalt. Post-polymer addition improved viscosity reduction, higher softening point and improved dimensional stability.
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公开(公告)号：US10723858B2
公开(公告)日：2020-07-28
申请号：US16134080
申请日：2018-09-18
发明人： Yuxiang Yao , Irene Fenton , Domenic Di Mondo , Gisele Azimi
摘要： A method for purifying polymers made from depolymerization of plastic can include selecting a polymer for purification, adding the polymer to a reaction vessel with a solvent, heating the mixture to promote migration of contaminants from the polymer to the solvent, performing an extraction technique to remove contaminants, depressurizing the reaction vessel to isolate a purified polymer, and allowing the purified polymer to cool. In some embodiments, the polymer is a polyethylene polymer. In other embodiments, the polymer is a polypropylene polymer. In some embodiments, the polymer is a polystyrene polymer. In some embodiments, the extraction technique is supercritical fluid extraction using supercritical CO2 as a solvent. Parameters including temperature, pressure, duration, agitation rate, starting solvent volume, and co-solvent addition for supercritical fluid extraction can be selected based on the properties of the polymer to be purified. The method can remove contaminating organic and inorganic compounds from the polymers.
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公开(公告)号：US20190023867A1
公开(公告)日：2019-01-24
申请号：US16140169
申请日：2018-09-24
发明人： Domenic Di Mondo
摘要： An improved method forms and employs a wax to modify throughputs and melt flow in polymers. The method includes: (a) selecting a solid polymeric material, (b) heating the solid polymeric material in an extruder to produce a molten polymeric material, (c) filtering the molten polymeric material, (d) placing the molten polymeric material through a chemical depolymerization process in a reactor to produce a depolymerized polymeric material, and (e) adding the depolymerized material to a pre-wax mixture to produce a modified polymer.
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公开(公告)号：US20170327663A1
公开(公告)日：2017-11-16
申请号：US15662818
申请日：2017-07-28
发明人： Amalia Gil , Domenic DiMondo , Radek Rybicki
IPC分类号： C08J11/12 , B01F5/06 , C08L91/06 , C10M109/02 , B09B3/00
CPC分类号： C08J11/12 , B01F5/0602 , B01F5/0615 , B01F2215/0049 , B01J8/0221 , B01J8/0278 , B01J8/0285 , B01J19/245 , B01J27/19 , B01J2208/00176 , B01J2208/00407 , B01J2208/00831 , B01J2208/0084 , B01J2208/027 , B01J2523/00 , B09B3/0083 , B29B17/00 , B29B17/04 , B29K2023/06 , C08J11/10 , C08J11/16 , C08J2323/06 , C08L91/06 , C10G1/02 , C10G1/10 , C10G2300/1003 , C10M109/02 , C10N2250/10 , Y02W30/625 , B01J2523/17 , B01J2523/31 , B01J2523/51 , B01J2523/68 , B01J2523/842
摘要： A system for continuously treating recycled polymeric material includes a hopper configured to feed the recycled polymeric material into the system. An extruder can turn the recycled polymeric material in a molten material. In some embodiments, the extruder uses thermal fluids, electric heaters, and/or a separate heater. The molten material is depolymerized in a reactor. In some embodiments, a catalyst is used to aid in depolymerizing the material. In certain embodiments, the catalyst is contained in a permeable container. The depolymerized molten material can then be cooled via a heat exchanger. In some embodiments, multiple reactors are used. In certain embodiments, these reactors are connected in series. In some embodiments, the reactor(s) contain removable static mixer(s) and/or removable annular inserts.
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公开(公告)号：US20210324172A1
公开(公告)日：2021-10-21
申请号：US17361329
申请日：2021-06-29
发明人： Amalia Gil , Domenic Di Mondo , Radek Rybicki
IPC分类号： C08J11/12 , B01F5/06 , B09B3/00 , C10M109/02 , C08L91/06 , B01J8/02 , C08J11/10 , B01J19/24 , B01J27/19 , B29B17/00 , B29B17/04 , C08J11/16 , C10G1/10 , C10G1/02 , B01J19/18
摘要： A system for continuously treating recycled polymeric material includes a hopper configured to feed the recycled polymeric material into the system. An extruder can turn the recycled polymeric material in a molten material. In some embodiments, the extruder uses thermal fluids, electric heaters, and/or a separate heater. The molten material is depolymerized in a reactor. In some embodiments, a catalyst is used to aid in depolymerizing the material. In certain embodiments, the catalyst is contained in a permeable container. The depolymerized molten material can then be cooled via a heat exchanger. In some embodiments, multiple reactors are used. In certain embodiments, these reactors are connected in series. In some embodiments, the reactor(s) contain removable static mixer(s) and/or removable annular inserts.
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公开(公告)号：US20210324127A1
公开(公告)日：2021-10-21
申请号：US17363009
申请日：2021-06-30
发明人： Domenic Di Mondo , Benjamin Scott
IPC分类号： C08F257/02 , C08J11/16 , C08F8/50 , B09B3/00
摘要： A system for continuously treating recycled polystyrene material includes a hopper/densifier configured to feed recycled polystyrene material into the system. An extruder can turn the recycled polystyrene material into a molten material. In some embodiments, the extruder uses thermal fluids, electric heaters, and/or a separate heater. Solvents, such as toluene, xylenes, cymenes, and/or terpinenes can aid in generating the molten material. The molten material can be depolymerized in a reactor and a catalyst can be used to aid the depolymerizing. In certain embodiments, the catalyst is contained in a permeable container. In some embodiments, copolymers/monomers are grafted onto the depolymerized material. The depolymerized molten material can be cooled via a heat exchanger. The product can be isolated by extraction, distillation, and/or separation. In some embodiments, the product is treated through filtration and absorption media. In some embodiments, multiple reactors are used.
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公开(公告)号：US11072676B2
公开(公告)日：2021-07-27
申请号：US16293792
申请日：2019-03-06
发明人： Domenic Di Mondo , Benjamin Scott
IPC分类号： C08F257/02 , C08J11/16 , C08F8/50 , B09B3/00
摘要： A system for continuously treating recycled polystyrene material includes a hopper/densifier configured to feed recycled polystyrene material into the system. An extruder can turn the recycled polystyrene material into a molten material. In some embodiments, the extruder uses thermal fluids, electric heaters, and/or a separate heater. Solvents, such as toluene, xylenes, cymenes, and/or terpinenes can aid in generating the molten material. The molten material can be depolymerized in a reactor and a catalyst can be used to aid the depolymerizing. In certain embodiments, the catalyst is contained in a permeable container. In some embodiments, copolymers/monomers are grafted onto the depolymerized material. The depolymerized molten material can be cooled via a heat exchanger. The product can be isolated by extraction, distillation, and/or separation. In some embodiments, the product is treated through filtration and absorption media. In some embodiments, multiple reactors are used.
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公开(公告)号：US20210087377A1
公开(公告)日：2021-03-25
申请号：US17083681
申请日：2020-10-29
发明人： Benjamin Scott , Domenic Di Mondo
摘要： A latex and solution with UV-active monomers created using styrenic polymers created via the depolymerization of a polystyrene feedstock. In some embodiments the polystyrene feedstock contains recycle polystyrene. In some embodiments, the styrenic polymers contain olefins. In some embodiments, the latex and solution with UV-active monomers are used in ink formulations. In some embodiments, latex and solution UV-active monomers can replace styrenated acrylics within flexo and/or gravure ink formulations. Other applications of the latex and solution with UV-active monomers can include, but are not limited to, coatings, paints, adhesives. Additional applications of the latex can include but are not limited to immunoassays.
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