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公开(公告)号：US20200239628A1
公开(公告)日：2020-07-30
申请号：US16648251
申请日：2018-09-07
发明人： Bander Al-Farhood , Zahir Bashir , Satishkumar Mahanth , Roshan Kumar Jha , Kummetha Raghunatha Reddy
摘要： The present invention relates to a tape comprising a composition comprising a copolyester comprising polymeric units derived from ethylene glycol and terephthalic acid or a diester thereof and >0.50 and 500 g/mol and
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公开(公告)号：US20180030239A1
公开(公告)日：2018-02-01
申请号：US15550393
申请日：2016-03-21
CPC分类号： C08K5/098 , C08J7/02 , C08L69/00 , G01N25/4866
摘要： In an embodiment, an article comprises a crystalline polycarbonate, wherein the article has a polycarbonate crystallinity of greater than or equal to 10 wt % based on the total weight of the polycarbonate. In another embodiment, a method of making an article comprises adding a crystalline polycarbonate powder into a cavity of a compression mold; wherein the crystalline polycarbonate powder has a crystallinity of greater than or equal to 10 wt % based on the total weight of the crystalline polycarbonate powder; compressing the crystalline polycarbonate powder in the cavity at a compression temperature of greater than or equal to 10° C. less than the melting temperature of the crystalline polycarbonate powder (Tcomp≧Tm−10° C.) and at a compression pressure of greater than or equal to 1 MPa; and removing the article from the cavity.
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公开(公告)号：US11560451B2
公开(公告)日：2023-01-24
申请号：US16772353
申请日：2018-12-10
发明人： Hao Gu , Zahir Bashir
摘要： A polymer composition for the production of shaped objects via selective sintering includes ≥70.0 wt % of poly(ethylene terephthalate), wherein ≥25.0 wt % and ≤90.0 wt % of the poly(ethylene terephthalate has resulted from a selective sintering process as unsintered material. The polymer composition is a powder having a D10 of ≥10 and ≤40 μm, a D50 of ≥75 and ≤100 μm, and a D90 of ≥160 and ≤200 μm. The polymer composition allows for the production of an article having a continuous use temperature of ≥100° C., and results in a low change of molecular weight during exposure to selective sintering powder processing temperatures. Further, the polymer composition allows for a significant reduction of the waste material generated during selective sintering as the unsintered material does not have to be disposed of as waste but may be used again.
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公开(公告)号：US20220227959A1
公开(公告)日：2022-07-21
申请号：US17610301
申请日：2020-05-25
发明人： Fayez Abdullah Alfayez , Toseef Ahmed , Zahir Bashir , Hao Gu , Saeed Al-Zahrani , Ahmed El Nour , Arfat Anis
摘要： The present invention relates to a material composition comprising: (i) a polyester selected from polyethylene terephthalate, polybutylene terephthalate, or mixtures thereof; and (ii) ≥1.0 and ≤30.0 vol % of aluminium particles and to a shaped object comprising a material composition comprising such material composition. Such shaped object does demonstrate the desirable mechanical impact properties, and also demonstrates the desirable electromagnetic shielding, electrical conductivity, and thermal conductivity, given its high loading of aluminium.
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公开(公告)号：US20170312971A1
公开(公告)日：2017-11-02
申请号：US15531032
申请日：2015-11-24
发明人： Jelle Terpsma , Zahir Bashir , Rajiva Joshi
CPC分类号： B29C48/92 , B29B7/00 , B29C48/0022 , B29C48/022 , B29C48/08 , B29C48/277 , B29C2948/922 , B29C2948/92333 , B29D7/01 , B29K2067/00 , B29L2007/007 , Y02P70/263
摘要： The present invention relates to an integrated process for the production of polyester tape, comprising the steps of a) preparing feed polyester comprising a polymerisation reaction in one or more reactors in series and measuring the viscosity of the obtained feed polyester, b) feeding the feed polyester obtained from step a) and optional additives to a melt mixing device, mixing said feed polyester and said optional additives so as to form a molten polyester composition and measuring the viscosity of the obtained polyester composition, c) extruding the molten polyester composition through a film extrusion die thereby forming a molten film of said polyester composition, d) preparing a polyester tape from said molten polyester film, said preparing comprising trimming the edges of the film at a stage where said film is below its melting temperature, e) feeding at least a part of the trimmed edges obtained in step d) in-line to the melt mixing device in step b) wherein the amount of trimmed edges and optional further additives fed to the melt mixing device in step b) is controlled on the basis of the measured viscosity of the polyester composition.
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公开(公告)号：US20240270434A1
公开(公告)日：2024-08-15
申请号：US18648732
申请日：2024-04-29
发明人： Zahir Bashir , Roshan Zameer
CPC分类号： B65D1/0207 , B29C71/0063 , B65D1/0246 , B65D41/3428 , B29K2067/003 , B29K2995/0041 , B29L2031/7158
摘要： Container assembly comprising a container and a closure, wherein the container is made of a crystallisable polymer material and comprises a neck portion with an outer cap surface and defines an outlet opening, the neck portion being configured for receiving the closure, wherein the closure includes a closure cap made of a crystallisable polymer material and has an inner cap surface, the closure cap being matched to the neck portion of the container to cover the outlet opening in a closed state, wherein the inner cap surface of the closure cap contacts the outer cap surface of the neck portion when the container assembly is closed, and wherein the material of the inner cap surface of the closure cap and/or of the outer cap surface of the neck portion is crystallised, to allow the container assembly to be opened after being closed for an elongated period of time.
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公开(公告)号：US11919232B2
公开(公告)日：2024-03-05
申请号：US17058280
申请日：2019-05-10
发明人： Hao Gu , Richard Schouwenaar , Zahir Bashir , Lanti Yang
IPC分类号： B29C64/153 , B29C64/223 , B29C64/245 , B29C64/35 , B33Y10/00 , B33Y70/10 , B29K67/00 , B29K105/00
CPC分类号： B29C64/153 , B29C64/223 , B29C64/245 , B29C64/35 , B33Y10/00 , B33Y70/10 , B29K2067/003 , B29K2067/006 , B29K2067/046 , B29K2105/0008 , B29K2105/251
摘要： The present invention relates to a process for moulding a polymeric object, the process comprising the steps of: (a) providing a substantially flat horizontally positioned layer of a material, the layer being a film or sheet; (b) providing a layer of a thermoplastic powder onto the layer provided under (a); (c) subjecting a pre-defined part of the thermoplastic powder to irradiation to heat the pre-defined part of the thermoplastic powder to a temperature at which the thermoplastic fuses or sinters onto at least a part of the flat layer of material; (d) terminating the exposure to irradiation; (e) providing a further layer of the thermoplastic powder onto the layer provided under (b); (f) subjecting a pre-defined part of the thermoplastic powder of the layer provided under (e) to irradiation to heat the pre-defined part of the thermoplastic powder to a temperature at which the thermoplastic fuses or sinters onto at least a part of the flat layer of the material fused under (c); (g) terminating the exposure to irradiation; (h) repeating steps (e)-(g) for as many cycles as required to complete the shape of the desired polymeric object; (i) removing the fraction of thermoplastic powder that has not been fused or sintered; and (j) optionally removing the substantially flat layer as provided under (a) from the polymeric object; wherein the surface area of the substantially flat layer of material is at least 200% of the surface area of that layer produced under steps (c)-(h) having the largest surface area. Such process allows for the production of small series or uniquely designed objects at low energy consumption wherein the objects exhibit high dimensional stability.
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公开(公告)号：US11673996B2
公开(公告)日：2023-06-13
申请号：US16648251
申请日：2018-09-07
发明人： Bander Al-Farhood , Zahir Bashir , Satishkumar Mahanth , Roshan Kumar Jha , Kummetha Raghunatha Reddy
IPC分类号： C08G63/672 , B29C48/00 , C08G63/80 , C08G63/82 , C08G63/86 , C08J5/18 , B29K67/00 , B29K71/00 , B29K105/00
CPC分类号： C08G63/672 , B29C48/0018 , C08G63/80 , C08G63/826 , C08G63/866 , C08J5/18 , B29K2067/003 , B29K2071/02 , B29K2105/0085 , C08J2367/02
摘要： Provided is a tape including a composition having a copolyester including polymeric units derived from ethylene glycol and terephthalic acid or a diester thereof and >0.50 and 500 g/mol and
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9.发明申请公开(公告)号：US20220332477A1
公开(公告)日：2022-10-20
申请号：US17640954
申请日：2020-09-11
摘要： Hinged container cap, comprising a base portion, a hinge member and a lid, wherein the base portion is made of a crystallisable polymer and includes a base circumferential wall and a base containment wall having an base outlet aperture and has an external base surfaceexternal base surface 44, wherein the hinge member connects the base portion to the lid and allows a movement of the lid between an opened position, in which the base outlet aperture is open, and a closed position, in which the base outlet aperture is closed, wherein in the closed position, at least part of the external base surfaceexternal base surface 44 of the base portion forms an interface with the lid contact surfacelid contact surface 42 of the lid, wherein the base portion and/or of the lid wall is crystallized at at least the interface of the base portion and the lid in the closed position, to allow the lid to be opened after being closed for an elongated period.
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公开(公告)号：US10066067B2
公开(公告)日：2018-09-04
申请号：US15738778
申请日：2016-06-03
发明人： Zahir Bashir , Rajiva Joshi , Azzedine Kioul
CPC分类号： C08J5/18 , B65D1/30 , C08J2367/02
摘要： The present invention relates to a polyester sheet comprising a crystallized portion, said crystallized portion being in the form of one or more strip extending along at least a portion of the polyester sheet. The present invention further relates to a method for the manufacture of such sheet and use of such sheet.
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