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公开(公告)号：US20230045215A1
公开(公告)日：2023-02-09
申请号：US17786200
申请日：2020-12-16
发明人： Eric CLAVELLE , Yves LACOMBE , Brian MOLLOY , Niousha KAZEMI , Mehdi KESHTKAR , Fazle SIBTAIN
摘要： Disclosed herein are polymerization processes where recycled polymeric material is fed to polymerization process to produce a blend of virgin polymer with recycled polymeric content.
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公开(公告)号：US20160229930A1
公开(公告)日：2016-08-11
申请号：US15021796
申请日：2014-09-08
发明人： Terri A. PRICE , Fazle SIBTAIN , Eric CHELUGET
IPC分类号： C08F10/02
摘要： A solution polymerization process that consumes less energy comprising: injecting feeds into one or more reactors to form a polyethylene in a single liquid phase, or optionally two liquid phases; deactivating the single or dual liquid phase; a first V/L separator separates the deactivated phase into a first bottom stream and a first overhead stream; the first overhead stream passes to a distillation column and the first bottom stream enters a second V/L separator, forming a second overhead stream and a second bottom stream; the second bottom stream enters a third V/L separator, forming a third overhead stream and a third bottom stream; the third bottom stream passes to polymer recovery; the second and third overhead stream are combined, condensed and purified, forming a purified solvent that is recycled to said reactors.
摘要翻译： 消耗更少能量的溶液聚合方法包括：将进料注入一个或多个反应器以在单个液相或任选两个液相中形成聚乙烯; 停用单液或双液相; 第一V / L分离器将去活化相分离成第一底部流和第一塔顶流; 第一塔顶流通入蒸馏塔，第一塔底物流进入第二V / L分离器，形成第二塔顶流和第二塔底料流; 第二底部流进入第三V / L分离器，形成第三塔顶流和第三底部流; 第三个底部流进入聚合物回收; 将第二和第三塔顶流合并，浓缩和纯化，形成再循环到所述反应器的纯化溶剂。
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公开(公告)号：US20240228681A1
公开(公告)日：2024-07-11
申请号：US17913803
申请日：2021-03-24
发明人： Soheil SADEGHI , Fazle SIBTAIN , Zengrong ZHANG , Niousha KAZEMI , Monika KLECZEK , Vinod KONAGANTI , Bronwyn GILLON , Shivendra GOYAL , Sepideh KASIRI , Stephen SALOMONS , Kenneth TAYLOR , Mehdi KESHTKAR
IPC分类号： C08F210/16 , C08F2/06 , C08F4/6592 , C08J5/18
CPC分类号： C08F210/16 , C08F2/06 , C08F4/65927 , C08J5/18 , C08J2323/08
摘要： This disclosure relates to ethylene interpolymer compositions, films prepared therefrom and a nonlinear rheology method capable of determining presence of long-chain branched structures in these ethylene interpolymer compositions. Ethylene interpolymer compositions disclosed herein specifically relates to ethylene interpolymer products having: a dimensionless nonlinear rheology network parameter, Δint., greater than or equal to 0.01, satisfying 0.01×(Z−48)0.78≤Δint≤0.01×(Z−60)0.78 inequality wherein Z is a normalized molecular weight defined by (I) where Mw and Me are the weight average and entanglement molecular weights; and a residual catalytic metal of from ≥0.03 to ≤5 ppm of hafnium. The disclosed ethylene interpolymer products have a melt index from about 0.3 to about 500 dg/minute, a density from about 0.855 to about 0.975 g/cc, a polydispersity, Mw/Mn, from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI50) from about 1% to about 98%.
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公开(公告)号：US20230035963A1
公开(公告)日：2023-02-02
申请号：US17785328
申请日：2020-12-11
发明人： Marcia PIRES FORTES FERREIRA , Marzieh EBRAHIMI , Renee ANSEEUW , Graham LEE , Gurpreet KOONER , Fazle SIBTAIN
IPC分类号： C08L23/08 , C08F2/14 , C08F210/16 , C08F2/01
摘要： Disclosed herein are processes for producing blends of recycled polymeric material and virgin polyethylene. Post-consumer recycled plastic (PCR) can vary widely with respect to composition which includes mixtures of variable amounts of different polar and non-polar polymers such as polyethylene, polypropylene, ethylene vinyl alcohol, and polyamide. Mixing PCR and virgin polyethylene is inconsistent, partially due to variability, and frequently results in a final product with poor mechanical and optical properties. The process described herein of adding PCR to a solution polymerization process provides another option for blending PCR and virgin polyethylene that offers an ability to exert greater control on the properties of the final product, independent of the composition of the PCR.
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