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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
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Bander Al-Farhood , Zahir Bashir , Satishkumar Mahanth , Roshan Kumar Jha , Kummetha Raghunatha Reddy
Abstract: 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
Applicant: SABIC Global Technologies B.V.
Inventor： Zahir Bashir , Abdul Salem Thelakkadan
CPC classification number: C08K5/098 , C08J7/02 , C08L69/00 , G01N25/4866
Abstract: 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
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Hao Gu , Zahir Bashir
Abstract: 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
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Fayez Abdullah Alfayez , Toseef Ahmed , Zahir Bashir , Hao Gu , Saeed Al-Zahrani , Ahmed El Nour , Arfat Anis
Abstract: 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
Applicant: SABIC Global Technologies B.V.
Inventor： Jelle Terpsma , Zahir Bashir , Rajiva Joshi
CPC classification number: B29C48/92 , B29B7/00 , B29C48/0022 , B29C48/022 , B29C48/08 , B29C48/277 , B29C2948/922 , B29C2948/92333 , B29D7/01 , B29K2067/00 , B29L2007/007 , Y02P70/263
Abstract: 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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Patent Agency Ranking
6.发明公开公开(公告)号：US20240199824A1
公开(公告)日：2024-06-20
申请号：US18287819
申请日：2022-04-20
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Tariq Syed , Zahir Bashir , Saleh Al-Karri , Fayez Abdullah Alfayez , Azzedine Kioul , Toseef Ahmed
CPC classification number: C08J3/201 , C08L23/12 , C08L67/03 , C08J2323/12 , C08J2367/03 , C08J2467/03 , C08L2205/06 , C08L2205/08
Abstract: A method of manufacturing an article includes melt-mixing a first polymer with a second polymer and optionally an additive to form a thermoplastic composition, the first polymer having a first melting point or a first glass transition temperature T1, the second polymer having a second melting point or a second glass transition temperature T2 that is 30° C. to 150° C. higher than T1: and forming the article from the thermoplastic composition at a temperature between T1 and T2, such as via sheet extrusion, thermoforming, pipe extrusion, extrusion molding, injection molding, extrusion molding, blow molding, compression molding, or additive manufacturing. The first polymer and the second polymer can have a volume ratio of 75:25 to 35:65 with a co-continuous morphology in the thermoplastic composition, with the second polymer providing a network for containing a melt of the first polymer.
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公开(公告)号：US11155676B2
公开(公告)日：2021-10-26
申请号：US16310989
申请日：2017-04-06
Applicant: SABIC Global Technologies B.V.
Inventor： Zahir Bashir , Hao Gu
IPC: C08G63/183 , B33Y70/00 , B33Y10/00 , B29C64/153 , B29C64/35 , B33Y80/00 , B29K67/00 , B29K509/02 , B29K509/10
Abstract: A polymer powder composition for production of shaped objects via selective laser sintering includes a thermoplastic material, which is a polyester, wherein the powder has specific particles size distribution. The thermoplastic material has: has a crystallization half time of >30 s and 50° C.; a peak melt temperature Tp,m of >200° C.; an extrapolated first heating run melt onset temperature T ei,m of >5° C. above the extrapolated first cooling run crystallization end temperature Tef,c; and a degree of crystallinity of >10.0%. The polymer composition has a continuous use temperature of >100° C., and a low change of molecular weight during exposure to selective laser sintering processing temperatures.
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公开(公告)号：US20190177473A1
公开(公告)日：2019-06-13
申请号：US16310989
申请日：2017-04-06
Applicant: SABIC Global Technologies B.V.
Inventor： Zahir Bashir , Hao Gu
IPC: C08G63/183 , B33Y70/00 , B29C64/153 , B29C64/35 , B33Y10/00
Abstract: The present invention relates to a polymer composition for production of shaped objects via selective laser sintering wherein the polymer composition comprises a thermoplastic material having: —a crystallisation half time of ≥30 s and ≤12 min at a supercooling of 50° C. below the peak melt temperature, wherein the crystallisation half time t1/2,c as determined via differential scanning calorimetry in accordance with ISO 11357-1 (2009); —a glass transition temperature Tg of ≥50° C. as determined in accordance with ISO 11357-2 (2013); —a peak melt temperature Tp,m of ≥200° C. as determined in accordance with ISO 11357-3 (2011), first heating nm; —an extrapolated first heating run melt onset temperature Tei,m of ≥5° C. above the extrapolated first cooling run crystallisation end temperature Tef,c as determined in accordance with ISO 11357-1 (2009), first heating and cooling run; and —a degree of crystallinity of ≥10.0% as determined according to the formula (I), wherein: —D=degree of crystallinity of the thermoplastic material (%); —ΔHf=enthalpy of fusion of the thermoplastic material as determined in accordance with ISO 11357-3 (2011); —ΔHf,100=enthalpy of fusion of the thermoplastic material in a 100% crystalline state. Such polymer composition has a continuous use temperature of ≥100° C., and a low change of molecular weight during exposure to selective laser sintering processing temperatures. D = Δ H f Δ H f , 100 ⋆ 100 % ( 1 )
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9.发明申请公开(公告)号：US20190118425A1
公开(公告)日：2019-04-25
申请号：US16302696
申请日：2017-05-11
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Yousof Mustafa Ghazzawi , Zahir Bashir
Abstract: A composition containing a semicrystalline poly(2,6-dimethyl-1,4-phenylene ether) having a glass transition temperature of 205 to 225° C. can be compression molded under conditions that include a molding temperature substantially below the glass transition temperature. In some cases, the crystallinity of the poly(2,6-dimethyl-1,4-phenylene ether) increases substantially during molding, even though the molding temperature is below the glass transition temperature. Also described are articles formed by the molding method, articles in which the poly(2,6-dimethyl-1,4-phenylene ether) has a crystallinity of at least 5 weight percent, and a method of increasing the crystallinity of poly(2,6-dimethyl-1,4-phenylene ether).
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10.发明申请公开(公告)号：US20240375325A1
公开(公告)日：2024-11-14
申请号：US18683192
申请日：2022-07-11
Applicant: SABIC Global Technologies B.V.
Inventor： Zahir Bashir , Fayez Abdullah Alfayez , Yousof Mustafa Ghazzawi
IPC: B29C43/00 , B29C43/52 , B29K23/00 , B29K105/00 , B29L15/00
Abstract: A process for the production of a shaped object, including: (a) providing a mould including a cavity formed to produce an object of a desired shape; (b) heating the mould to a temperature of ≥145° C.; (c) supplying an ultra-high molecular weight polyethylene (UHMWPE) material into the mould; (d) closing the mould with a punch counterpart having such shape as to fit together with the mould cavity to form the shape of the desired object; (e) applying a compaction pressure through the punch to the material that is present in the mould, whilst maintaining the mould temperature, for such a compaction time that the material fuses to form the desired shape; (f) releasing the compaction pressure and removing the shaped object from the mould at a temperature of ≥145° C.; and (g) cooling the shaped object to a temperature of below the melting temperature of the UHMWPE material.
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