公开(公告)号：US20210086490A1

公开(公告)日：2021-03-25

申请号：US16971117

申请日：2019-02-27

Applicant: Dow Global Technologies LLC ,  PBBPolisur S.R.L. ,  Rohm and Haas Company

Inventor： Camila Do Valle ,  Juan Carlos Casarubias ,  Maximiliano Zanetti ,  Marlos Giuntini de Oliveira ,  Jorge Caminero Gomes

IPC: B32B27/32 ,  B32B27/08 ,  C08J5/18 ,  C08J7/04 ,  C08G18/10 ,  C08G18/48 ,  C08G18/76

Abstract: A heat-shrinkable film which includes an ethylene-based polymer multilayer or monolayer film and a coating on an outer surface of the ethylene-based polymer film. The ethylene-based polymer film having a single layer or a multilayer structure formed from a first layer, a second layer, and at least one inner layer between the first and second layers. The coating including polyurethane which is the polymerized reaction product of: a polyol; and an aromatic isocyanate functional prepolymer. Further, a method of unitizing polymer wrapped primary packages is provided. The method includes wrapping one or more of the primary packages with the heat-shrinkable film with the coating disposed proximal the one or more primary packages and applying thermal energy to reduce the dimensions of the heat-shrinkable film to constrain the primary package within the heat-shrinkable film. The coating serving to alleviate sticking between the heat-shrinkable film and the polymer wrapped primary package.

公开(公告)号：US10682835B2

公开(公告)日：2020-06-16

申请号：US15764515

申请日：2016-09-09

Applicant: PBBPolisur S.R.L. ,  Dow Global Technologies LLC ,  Dow Quimica De Colombia S.A.

Inventor： Maximiliano Zanetti ,  Guillermo A. Raimondi ,  Jorge C. Gomes ,  Miguel A. Molano Niampira

IPC: B32B7/02 ,  B32B27/32 ,  B29C48/10 ,  B29C48/00 ,  B29C48/21 ,  B29C48/88 ,  B32B27/08 ,  B29K23/00 ,  B29L31/00

Abstract: A multilayer shrink film comprising a first layer, a second layer, and a third layer, wherein the second layer is positioned between the first layer and the third layer, and wherein the second layer comprises a second polymer blend, the second polymer blend comprising from 0 to 60 wt. %, based on the total polymer weight in the second polymer blend, of a low density polyethylene, and from 40 to 100 wt. %, based on the total polymer weight in the second polymer blend, of an ethylene/α-olefin interpolymer composition having a density in the range of from 0.860 g/cc to 0.910 g/cc, a melt index (I2) in a range of from 0.1 to 5 g/10 minutes, a molecular weight distribution (Mw/Mn) in the range of from 1.8 to 3.5, and a Comonomer Distribution Constant (CDC) in the range of from 95 to 200.

公开(公告)号：US10300685B2

公开(公告)日：2019-05-28

申请号：US14700821

申请日：2015-04-30

Applicant: Dow Quimica Mexicana S.A.de C.V. ,  PBBPolisur S.R.L. ,  Dow Global Technologies LLC ,  Dow Quimica de Colombia S.A.

Inventor： Carlos Ponce Flores ,  Maximiliano Zanetti ,  Jorge C. Gomes ,  Miguel Angel Molano Niampira ,  Francisco Paz

IPC: B32B27/08 ,  B32B7/00 ,  B32B7/02 ,  B32B27/00 ,  B32B27/06 ,  B32B27/18 ,  B32B27/32 ,  B32B27/20

Abstract: A polyethylene-based multi-layer film, which is particularly useful as a greenhouse film, is provided. The multi-layer film contains an ethylene/α-olefin interpolymer composition having a Comonomer Distribution Constant (CDC) in the range of from 75 to 200, a vinyl unsaturation of less than 0.15 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 2 to 20; a density in the range of from 0.903 to 0.950 g/cm3, a melt index (I2) in a range of from 0.1 to 5 g/10 minutes, a molecular weight distribution (Mw/Mn) in the range of from 1.8 to 3.5.

公开(公告)号：WO2021242619A1

公开(公告)日：2021-12-02

申请号：PCT/US2021/033521

申请日：2021-05-21

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  PBBPOLISUR S.R.L.

Inventor： BARBOSA, Felipe, D. ,  LAPORTA, Marcela, E. ,  GOMES, Jorge, C. ,  MAZZOLA, Nicolas, C. ,  LUTKENHAUS, Davidson

IPC: C08L23/08 ,  C08F2/00

Abstract: Embodiments of polyethylene formulations and articles comprising polyethylene formulations are dislcosed. The polyethylene formulation may include from 45 wt.% to 90 wt.% of an MDPE having a density of from 0.930 g/cc to 0.950 g/cc and a melt index (I2) from 0.05 g/10 min to 0.5 g/10 min; from 10 wt.% to 50 wt.% of a polyethylene composition having a density from 0.910 g/cc to 0.936 g/cc and a melt index (I2) from 0.7 g/10 min to 1.0 g/10 min; and from 0.5 wt.% to 5% of a masterbatch composition. The polyethylene composition may comprise a first polyethylene fraction area in a temperature range of 45°C to 87°C of an elution profile via improved comonomer composition distribution (iCCD) analysis method and a second polyethylene fraction area in a temperature range of 95°C to 120°C of an elution profile via iCCD.

公开(公告)号：US11939146B2

公开(公告)日：2024-03-26

申请号：US17311457

申请日：2019-11-14

Applicant: Dow Global Technologies LLC ,  PBBPolisur S.R.L.

Inventor： Akanksha Garg ,  Ashishkumar S. Lokhande ,  Pavan Kumar Valavala ,  Jose Eduardo Ruiz ,  Maximiliano Zanetti ,  Kurt A. Koppi

IPC: B32B1/08 ,  B32B3/26 ,  B32B27/08 ,  B32B27/32 ,  B65D88/16

CPC classification number: B65D88/1618 ,  B32B1/08 ,  B32B3/263 ,  B32B27/08 ,  B32B27/327 ,  B32B2307/308 ,  B32B2307/72 ,  B32B2307/732 ,  B32B2439/06

Abstract: Embodiments of the present disclosure are directed to multilayer silo bags that may include a tube comprising at least two layers, a first open end, a second open end, and a first region and a second region disposed between the first and second end. One or more of the at least three layers may comprise an ethylene/alpha-olefin interpolymer having a density of 0.90 g/cc to 0.965 g/cc and an I2 of 0.1 to 6.0 g/10 minutes, a low density ethylene-based polymer having a density of 0.917 g/cc to 0.935 g/cc and an I2 of 0.1 to 2.0 g/10 minutes, or combinations thereof. The first region may have a thickness of at least 10% greater than a thickness of the second region. The first region may have a surface area that is at least 50% of an overall surface area of the multilayer silo bag.

公开(公告)号：US11739176B2

公开(公告)日：2023-08-29

申请号：US17285565

申请日：2019-10-14

Applicant: PBBPolisur S.R.L.

Inventor： Alberto Fabian Negretti

IPC: C08G18/18 ,  C08G18/32 ,  C08G18/48 ,  C08G18/66 ,  C08G18/76

CPC classification number: C08G18/6607 ,  C08G18/3218 ,  C08G18/4816 ,  C08G18/4829 ,  C08G18/4883 ,  C08G18/7671 ,  C08G2110/0083

Abstract: Embodiments of the present disclosure are directed towards formulated polyol compositions that include a sucrose propoxylated polyol, a polyether triol, and a propoxylated homopolymer triol.

公开(公告)号：US20220097348A1

公开(公告)日：2022-03-31

申请号：US16332037

申请日：2017-09-11

Applicant: Dow Global Technologies LLC ,  PBBPolisur S.R.L. ,  Dow Quimica De Colombia S.A.

Inventor： Marlos Giuntini De Oliveira ,  Teresa P. Karjala ,  Mustafa Bilgen ,  Jorge Caminero Gomes ,  Maximiliano Zanetti ,  Miguel A. Molano Niampira ,  Jorge Mario Rodriguez Camelo ,  Camila Do Valle ,  Guillermo A. Raimondi

IPC: B32B27/08 ,  B32B27/32 ,  C08J5/18 ,  B32B7/02

Abstract: Embodiments disclosed herein include multilayer films having a cling layer, a core layer, and a release layer, wherein the cling layer comprises a propylene interpolymer and the core layer comprises a core layer polyethylene composition.

公开(公告)号：US20220024686A1

公开(公告)日：2022-01-27

申请号：US17311457

申请日：2019-11-14

Applicant: Dow Global Technologies LLC ,  PBBPolisur S.R.L.

Inventor： Akanksha Garg ,  Ashishkumar S. Lokhande ,  Pavan Kumar Valavala ,  Jose Eduardo Ruiz ,  Maximiliano Zanetti ,  Kurt A. Koppi

IPC: B65D88/16 ,  B32B1/08 ,  B32B27/08 ,  B32B3/26 ,  B32B27/32

Abstract: Embodiments of the present disclosure are directed to multilayer silo bags that may include a tube comprising at least two layers, a first open end, a second open end, and a first region and a second region disposed between the first and second end. One M or more of the at least three layers may comprise an ethylene/alpha-olefin interpolymer having a density of 0.90 g/cc to 0.965 g/cc and N an I2 of 0.1 to 6.0 g/10 minutes, a low density ethylene-based polymer having a density of 0.917 g/cc to 0.935 g/cc and an I2 of 0.1 to 2.0 g/10 minutes, or combinations thereof. The first region may have a thickness of at least 10% greater than a thickness of the second region. The first region may have a surface area that is at least 50% of an overall surface area of the multilayer silo bag.

公开(公告)号：US20210395437A1

公开(公告)日：2021-12-23

申请号：US17285565

申请日：2019-10-14

Applicant: PBBPolisur S.R.L.

Inventor： Alberto Fabian Negretti

IPC: C08G18/66 ,  C08G18/32 ,  C08G18/48 ,  C08G18/76

Abstract: Embodiments of the present disclosure are directed towards formulated polyol compositions that include a sucrose propoxylated polyol, a polyether triol, and a propoxylated homopolymer triol.

公开(公告)号：US11193009B2

公开(公告)日：2021-12-07

申请号：US16639620

申请日：2018-09-14

Applicant: Dow Global Technologies LLC ,  PBBPolisur S.R.L.

Inventor： Surya Ssubramaniam ,  Mehmet Demirors ,  Teresa P. Karjala ,  Jorge C. Gomes ,  Guillermo A. Raimondi ,  Davidson Lütkenhaus ,  Marie De Luján Tricotti

IPC: C08J5/18 ,  C08L23/08 ,  C08K5/00 ,  C08K5/14 ,  C08L23/06

Abstract: Provided is a method for increasing the melt strength and/or low shear viscosity of a polyethylene resin. The method includes: a) providing a polyethylene composition including the reaction product of ethylene and optionally, one or more alpha-olefin comonomers, wherein the polyethylene composition is characterized by the following properties: a density ranging from 0.900 g/cm3 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) ranging from 2.6 to 3.5, and from 0.10 to 0.27 vinyl groups per 1,000 total carbon atoms; b) providing a masterbatch composition including a free radical generator and a polyethylene resin, wherein the free radical generator has a half-life at 220° C. of less than 200 seconds, and a decomposition energy higher than −250 kJ/mol, and wherein the polyethylene resin has a density ranging from 0.900 g/cm3 to 0.970 g/cm3, melt index ranging from 0.01 g/10 min to 100 g/10 min; and c) reacting the polyethylene composition with the masterbatch composition to form a modified polyethylene composition.