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1. WO2021026137 - MULTILAYER FILMS HAVING A LAYER COMPRISING A POLAR MATERIAL AND METHODS OF PRODUCING THE SAME

Publication Number WO/2021/026137
Publication Date 11.02.2021
International Application No. PCT/US2020/044860
International Filing Date 04.08.2020
IPC
B32B 27/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
06as the main or only constituent of a layer next to another layer of a specific substance
08of synthetic resin of a different kind
B32B 27/30 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
30comprising vinyl resin; comprising acrylic resin
B32B 27/32 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
32comprising polyolefins
CPC
B32B 2250/242
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2250Layers arrangement
24All layers being polymeric
242All polymers belonging to those covered by group B32B27/32
B32B 2270/00
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2270Resin or rubber layer containing a blend of at least two different polymers
B32B 2307/30
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
30having particular thermal properties
B32B 2307/538
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
50having particular mechanical properties
538Roughness
B32B 2307/544
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
50having particular mechanical properties
544Torsion strength; Torsion stiffness
B32B 2307/546
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
50having particular mechanical properties
546Flexural strength; Flexion stiffness
Applicants
  • DOW GLOBAL TECHNOLOGIES LLC [US]/[US]
Inventors
  • ALABOSON, Justice
  • BISWAS, Sanjib
  • GAUBERT, Joshua B.
  • GINGER, Douglas S.
  • KALIHARI, Vivek
  • KAPUR, Mridula
  • ONER-DELIORMANLI, Didem
Agents
  • MONTELEONE, Allisyn E.
  • INGLE, Cory J.
  • NEAL, Cynthia A.
  • BRENTLINGER, Nicolas A.
  • EMCH, Matthew A.
  • MCNEELY, Richard J.
  • BEYER, James E.
  • LUNN, Jennifer H.
  • MOLLOY, Matthew A.
  • KANEL, Andrew S.
  • WISECUP, Bryan C.
  • SAYRE, Elias C.
  • THARP, Amy M.
Priority Data
62/883,46706.08.2019US
62/883,49706.08.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MULTILAYER FILMS HAVING A LAYER COMPRISING A POLAR MATERIAL AND METHODS OF PRODUCING THE SAME
(FR) FILMS MULTICOUCHES AYANT UNE COUCHE COMPRENANT UN MATÉRIAU POLAIRE ET LEURS PROCÉDÉS DE PRODUCTION
Abstract
(EN)
Multilayer films having a layer including a medium density polyethylene having (a) a first polyethylene fraction having a single peak in a temperature range of 45 °C to 87 °C in an elution profile via improved comonomer composition distribution (iCCD); and (b) a second polyethylene fraction having a single peak in a temperature range of 95 °C to 120 °C via iCCD analysis. The polyethylene composition has a density of 0.924 g/cm3 to 0.936 g/cm3 and a melt index (I2) of 0.25 g/10 minutes to 2.0 g/10 minutes, a first polyethylene fraction area comprises at least 40% of the total area of the elution profile, a ratio of the first polyethylene fraction area to the second polyethylene fraction area is 0.75 to 2.5, and the width of the single peak of the second polyethylene fraction at 50 percent peak height is less than 5.0 °C.
(FR)
Films multicouches ayant une couche comprenant un polyéthylène de densité moyenne ayant (a) une première fraction de polyéthylène ayant un pic unique dans une plage de température de 45 °C à 87 °C dans un profil d'élution par l'intermédiaire d'une distribution de composition de comonomère améliorée (iCCD); et (b) une seconde fraction de polyéthylène ayant un pic unique dans une plage de température allant de 95 °C à 120 °C par l'intermédiaire. La composition de polyéthylène a une densité de 0,924 g/cm3 à 0,936 g/cm3 et un indice de fonte (I2) de 0,25 g/10 minutes à 2,0 g/10 minutes, une première zone de fraction de polyéthylène comprenant au moins 40 % de la surface totale du profil d'élution, un rapport de la première zone de fraction de polyéthylène à la seconde zone de fraction de polyéthylène est de 0,75 à 2,5, et la largeur du pic unique de la seconde fraction de polyéthylène à 50 % de hauteur de pic est inférieure à 5,0 °C.
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