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公开(公告)号：US20180273726A1
公开(公告)日：2018-09-27
申请号：US15990088
申请日：2018-05-25
摘要： A process to prepare a vinylidene chloride heteropolymer comprising copolymerizing vinylidene chloride with at least one comonomer selected from the group consisting of alkyl acrylates, non-vinylidene chloride vinyl monomers and combinations thereof in the presence of an indicator, wherein the indicator is soluble in vinylidene chloride, the at least one comonomer, or a mixture of the vinylidene chloride and the at least one comonomer is provided.
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公开(公告)号：US20170226334A1
公开(公告)日：2017-08-10
申请号：US15503011
申请日：2015-08-10
CPC分类号： C08L27/08 , B32B27/08 , B32B27/22 , B32B27/304 , B32B27/306 , B32B27/308 , B32B2270/00 , B32B2307/558 , B32B2307/5825 , B32B2307/7244 , B32B2439/00 , C08J5/18 , C08J2327/08 , C08J2423/08 , C08L33/10 , C08L2203/16 , C08L2205/03 , C08L23/0869
摘要： A polymer blend including a vinylidene chloride interpolymer; an ethylene-acrylate interpolymer; and optionally one or more additives selected from the group consisting of stabilizers, plasticizers, and processing aids is provided. Also provided is an extruded film and a packaging or container which includes the film.
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公开(公告)号：US11007488B2
公开(公告)日：2021-05-18
申请号：US16085038
申请日：2017-03-14
发明人： Junqiang Liu , Douglas E. Beyer , Janet M. Goss , Chan Han , Edward M. Calverley
IPC分类号： B01D69/02 , B01D53/22 , B01D67/00 , B01D71/02 , B01D71/80 , B01D71/30 , B01D69/08 , B01D71/42 , B01D71/40
摘要： A process for separating hydrogen from a gas mixture having hydrogen and a larger gas molecule is comprised of flowing the gas mixture through a carbonized polyvinylidene chloride (PVDC) copolymer membrane having a hydrogen permeance in combination with a hydrogen/methane selectivity, wherein the combination of hydrogen permeance and hydrogen/methane selectivity is (i) at least 30 GPU hydrogen permeance and at least 200 hydrogen/methane selectivity or (ii) at least 10 GPU hydrogen permeance and at least 700 hydrogen/methane selectivity. The carbonized PVDC copolymer may be made by heating and restraining a polyvinylidene chloride copolymer film or hollow fiber having a thickness of 1 micrometer to 250 micrometers to a pretreatment temperature of 100° C. to 180° C. to form a pretreated polyvinylidene chloride copolymer film and then heating and restraining the pretreated polyvinylidene chloride copolymer film to a maximum pyrolysis temperature from 350° C. to 750° C.
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公开(公告)号：US10059830B2
公开(公告)日：2018-08-28
申请号：US15034671
申请日：2014-10-14
IPC分类号： C08K5/45 , C08L27/08 , C08F214/08 , C08K5/378
CPC分类号： C08K5/45 , C08F214/08 , C08K5/378 , C08L27/08 , C08L2203/16 , C08F220/14
摘要： A process to prepare a vinylidene chloride heteropolymer comprising copolymerizing vinylidene chloride with at least one comonomer selected from the group consisting of alkyl acrylates, non-vinylidene chloride vinyl monomers and combinations thereof in the presence of an indicator, wherein the indicator is soluble in vinylidene chloride, the at least one comonomer, or a mixture of the vinylidene chloride and the at least one comonomer is provided.
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公开(公告)号：US11931697B2
公开(公告)日：2024-03-19
申请号：US17231358
申请日：2021-04-15
发明人： Junqiang Liu , Douglas E. Beyer , Janet M. Goss , Chan Han , Edward M. Calverley
IPC分类号： B01D69/02 , B01D53/22 , B01D67/00 , B01D71/02 , B01D71/30 , B01D71/80 , B01D69/08 , B01D71/40 , B01D71/42
CPC分类号： B01D69/02 , B01D53/228 , B01D67/0067 , B01D71/021 , B01D71/028 , B01D71/30 , B01D71/80 , B01D67/002 , B01D69/08 , B01D71/40 , B01D71/42 , B01D2256/10 , B01D2256/20 , B01D2256/22 , B01D2256/245 , B01D2257/108 , B01D2325/022 , B01D2325/04 , B01D2325/20
摘要： A process for separating hydrogen from a gas mixture having hydrogen and a larger gas molecule is comprised of flowing the gas mixture through a carbonized polyvinylidene chloride (PVDC) copolymer membrane having a hydrogen permeance in combination with a hydrogen/methane selectivity, wherein the combination of hydrogen permeance and hydrogen/methane selectivity is (i) at least 30 GPU hydrogen permeance and at least 200 hydrogen/methane selectivity or (ii) at least 10 GPU hydrogen permeance and at least 700 hydrogen/methane selectivity. The carbonized PVDC copolymer may be made by heating and restraining a polyvinylidene chloride copolymer film or hollow fiber having a thickness of 1 micrometer to 250 micrometers to a pretreatment temperature of 100° C. to 180° C. to form a pretreated polyvinylidene chloride copolymer film and then heating and restraining the pretreated polyvinylidene chloride copolymer film to a maximum pyrolysis temperature from 350° C. to 750° C.
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公开(公告)号：US20210229045A1
公开(公告)日：2021-07-29
申请号：US17231358
申请日：2021-04-15
发明人： Junqiang Liu , Douglas E. Beyer , Janet M. Goss , Chan Han , Edward M. Calverley
摘要： A process for separating hydrogen from a gas mixture having hydrogen and a larger gas molecule is comprised of flowing the gas mixture through a carbonized polyvinylidene chloride (PVDC) copolymer membrane having a hydrogen permeance in combination with a hydrogen/methane selectivity, wherein the combination of hydrogen permeance and hydrogen/methane selectivity is (i) at least 30 GPU hydrogen permeance and at least 200 hydrogen/methane selectivity or (ii) at least 10 GPU hydrogen permeance and at least 700 hydrogen/methane selectivity. The carbonized PVDC copolymer may be made by heating and restraining a polyvinylidene chloride copolymer film or hollow fiber having a thickness of 1 micrometer to 250 micrometers to a pretreatment temperature of 100° C. to 180° C. to form a pretreated polyvinylidene chloride copolymer film and then heating and restraining the pretreated polyvinylidene chloride copolymer film to a maximum pyrolysis temperature from 350° C. to 750° C.
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公开(公告)号：US20180186941A1
公开(公告)日：2018-07-05
申请号：US15738915
申请日：2016-08-17
CPC分类号： C08J3/16 , B32B27/08 , C08J3/005 , C08J3/126 , C08J2327/08 , C08J2423/06 , C08J2433/00 , C08J2433/06 , C08J2491/06 , C08L27/08 , C08L2205/03 , C08L23/06 , C08L33/06
摘要： The present invention relates generally to methods of preparing vinylidene chloride polymer compositions. In one embodiment, a method of preparing a vinylidene chloride polymer composition comprises (a) adding a first dispersion comprising a wax, a polyolefin or a combination thereof to an aqueous dispersion comprising vinylidene chloride polymer particles; (b) adding an acrylic polymer latex to the aqueous dispersion; and (c) coagulating the wax, the polyolefin, or the combination of the wax and polyolefin, and the acrylic polymer on the surface of the polymer particles.
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8.发明申请公开(公告)号：US20170203276A1
公开(公告)日：2017-07-20
申请号：US15320334
申请日：2015-06-22
发明人： Junqiang Liu , Douglas E. Beyer , Edward M. Calverley , Chan Han
CPC分类号： B01J20/20 , B01D53/02 , B01D53/228 , B01D67/0067 , B01D69/02 , B01D71/021 , B01D71/34 , B01D2253/102 , B01D2253/116 , B01D2253/308 , B01D2253/311 , B01D2256/10 , B01D2256/24 , B01D2256/245 , B01D2257/102 , B01D2257/504 , B01D2257/7022 , B01D2257/7025 , B01D2325/023 , B01J20/28016 , B01J20/28023 , B01J20/28038 , B01J20/28069 , B01J20/2808 , B01J20/3007 , B01J20/3021 , B01J20/3028 , B01J20/3078 , B01J2220/4812 , C01B32/00 , C01B32/306 , C01B32/382 , C01P2006/14 , C01P2006/16 , Y02C10/08 , Y02C20/20 , Y02P20/152 , Y02P20/156
摘要： Novel carbon molecular sieve (CMS) compositions comprising carbonized vinylidene chloride copolymer having micropores with an average micropore size ranging from 3.0 to 5.0. These materials offer capability in separations of gas mixtures including, for example, propane/propylene; nitrogen/methane; and ethane/ethylene. Such may be prepared by a process wherein vinylidene chloride copolymer beads, melt extruded film or fiber are pretreated to form a precursor that is finally carbonized at high temperature. Preselection or knowledge of precursor crystallinity and attained maximum pyrolysis temperature enables preselection or knowledge of a average micropore size, according to the equation ?=6.09+(0.0275×C)−(0.00233×T), wherein ? is the average micropore size in Angstroms, C is the crystallinity percentage and T is the attained maximum pyrolysis temperature in degrees Celsius, provided that crystallinity percentage ranges from 25 to 75 and temperature in degrees Celsius ranges from 800 to 1700. The beads, fibers or film may be ground, post-pyrolysis, and combined with a non-coating binder to form extruded pellets, or alternatively the fibers may be woven, either before or after pre-treatment, to form a woven fiber sheet which is thereafter pyrolyzed to form a woven fiber adsorbent.
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公开(公告)号：US20210229044A1
公开(公告)日：2021-07-29
申请号：US17230464
申请日：2021-04-14
摘要： A carbonized PVDC copolymer useful for the separation of an olefin from its corresponding paraffin may be made by heating a polyvinylidene chloride copolymer film or hollow fiber having a thickness of 1 micrometer to 20 micrometers to a pretreatment temperature of 100° C. to 180° C. to form a pretreated polyvinylidene chloride copolymer film and then heating the pretreated polyvinylidene chloride copolymer film to a maximum pyrolysis temperature from 350° C. to 750° C. A process for separating an olefin from its corresponding paraffin in a gas mixture is comprised of flowing the gas mixture through the aforementioned carbonized polyvinylidene chloride (PVDC) copolymer to produce a permeate first stream having an increased concentration of the olefin and a second retentate stream having an increased concentration of its corresponding paraffin.
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公开(公告)号：US11007489B2
公开(公告)日：2021-05-18
申请号：US16085039
申请日：2017-03-14
IPC分类号： B01D69/02 , B01D53/22 , B01D67/00 , B01D71/02 , B01D71/80 , B01D71/30 , B01D69/08 , B01D71/42 , B01D71/40
摘要： A carbonized PVDC copolymer useful for the separation of an olefin from its corresponding paraffin may be made by heating a polyvinylidene chloride copolymer film or hollow fiber having a thickness of 1 micrometer to 20 micrometers to a pretreatment temperature of 100° C. to 180° C. to form a pretreated polyvinylidene chloride copolymer film and then heating the pretreated polyvinylidene chloride copolymer film to a maximum pyrolysis temperature from 350° C. to 750° C. A process for separating an olefin from its corresponding paraffin in a gas mixture is comprised of flowing the gas mixture through the aforementioned carbonized polyvinylidene chloride (PVDC) copolymer to produce a permeate first stream having an increased concentration of the olefin and a second retentate stream having an increased concentration of its corresponding paraffin.
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