公开(公告)号：US20240270880A1

公开(公告)日：2024-08-15

申请号：US18394838

申请日：2023-12-22

Applicant: BRASKEM AMERICA, INC. ,  Case Western Reserve University

Inventor： Kimberly Miller McLoughlin ,  Sarah Mitchell ,  Michelle Sing ,  Jayme Kennedy ,  Ica Manas-Zloczower ,  Alireza Bandegi ,  Amin Osouski ,  Thomas Gray

IPC: C08F8/14 ,  B01J31/04 ,  C08F210/02 ,  C08F218/08

CPC classification number: C08F8/14 ,  B01J31/04 ,  C08F210/02 ,  C08F218/08

Abstract: This invention relates to a process for producing a recyclable ethylene-vinyl ester polymer comprising reacting an ethylene-vinyl ester polymer having an irreversibly crosslinked structure with a poly(vinyl alcohol) (PVA), via a transesterification reaction, in the presence of a transesterification catalyst, to produce a recyclable ethylene-vinyl ester vitrimer. This invention also relates to a recyclable ethylene-vinyl ester vitrimer prepared according to the process.

公开(公告)号：US20230357458A1

公开(公告)日：2023-11-09

申请号：US18142313

申请日：2023-05-02

Applicant: BRASKEM AMERICA, INC.

Inventor： Geoffrey Lyne ,  Kimberly Miller McLoughlin ,  Sarah Mitchell

IPC: C08F8/42 ,  C08K3/22 ,  C08F6/26 ,  C08F110/06 ,  C08J3/20 ,  C08J3/24

CPC classification number: C08F8/42 ,  C08K3/22 ,  C08F6/26 ,  C08F110/06 ,  C08J3/201 ,  C08J3/24 ,  C08K2003/2296 ,  C08F2500/12 ,  C08F2500/30 ,  C08F2500/31 ,  C08F2810/20 ,  C08J2323/12

Abstract: This invention relates to a process for modifying an olefin polymer composition, comprising melt mixing an olefin polymer composition with a free-radical initiator composition comprising a metal peroxide powder, wherein the free-radical initiator composition initiates a free-radical reaction of the olefin polymer composition to produce a modified olefin polymer composition. The invention also relates to a modified olefin polymer composition prepared by the process and various articles formed from the modified olefin polymer composition.

公开(公告)号：US11124637B2

公开(公告)日：2021-09-21

申请号：US16293090

申请日：2019-03-05

Applicant: BRASKEM AMERICA, INC.

Inventor： Kimberly Miller McLoughlin ,  Kevin Herrington

IPC: C08L23/14 ,  C08L23/36 ,  C08L23/02

Abstract: A foamable composition including a polypropylene-based copolymer and a polyolefin is disclosed. The composition can be used to make a stiff foam with a high closed-cell content. Methods for producing the composition and the foam are provided.

公开(公告)号：US10584237B2

公开(公告)日：2020-03-10

申请号：US15544152

申请日：2016-01-15

Applicant: Braskem America, Inc.

Inventor： Elliot Carnevale ,  Riley Stevens ,  Kimberly Miller McLoughlin ,  William Scott Miller ,  Michael Robert Stephans ,  Steven Michael Krupinski

IPC: C08L23/12 ,  C08J9/00 ,  C08J5/18 ,  C08K5/43

Abstract: A propylene-based polymer composition is characterized by a melt strength at 190° C. of at least 20 cN, a melt drawability at 190° C. of at least 100 mm/s, and a flexural modulus at room temperature of at least 240,000 psi. The propylene-based polymer composition includes a propylene-based polymer resin having a crystallinity of at least 50% coupled with a poly(sulfonyl azide).

公开(公告)号：US20240327554A1

公开(公告)日：2024-10-03

申请号：US18621652

申请日：2024-03-29

Applicant: BRASKEM AMERICA, INC.

Inventor： Sarah Mitchell ,  Hadi Mohammadi ,  Kimberly Miller McLoughlin

IPC: C08F210/02

CPC classification number: C08F210/02 ,  C08F2800/20 ,  C08F2810/20

Abstract: The invention relates to a polymerizable composition, comprising a crosslinker comprising a —Sn- moiety and having at least two polymerizable groups, wherein n is an integer of from 2 to 8; one or more monomers, each monomer having at least one C═C double bond capable of undergoing a polymerization reaction; and a polymerization initiator. The invention also relates to methods of making a reversibly-crosslinked polymer by reacting the components of the polymerizable composition, and the resulting reversibly-crosslinkable polymer and its reprocessing/recycling.

公开(公告)号：US11787925B2

公开(公告)日：2023-10-17

申请号：US16690511

申请日：2019-11-21

Applicant: Braskem America, Inc.

Inventor： Kevin Herrington ,  Kimberly Miller McLoughlin

IPC: C08F10/06 ,  C08F210/06 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  B29C49/06 ,  C08L23/16 ,  C08L23/18 ,  C08L51/06 ,  C08L33/08 ,  C08L81/06 ,  C08K5/14 ,  C08L83/04 ,  B29C45/00

CPC classification number: C08L23/14 ,  C08K5/14 ,  C08L23/16 ,  C08L23/18 ,  C08L33/08 ,  C08L51/06 ,  C08L81/06 ,  C08L83/04 ,  B29C45/0001 ,  B29C49/06 ,  C08L2205/02 ,  C08L2312/06

Abstract: A composition comprising polypropylene having a high melt strength suitable for an injection stretch blow molding (ISBM) process is provided. Such a composition includes a polypropylene (PP) copolymer having a branched structure. The PP copolymer is a random copolymer derived from propylene and at least one comonomer selected from ethylene, any C4-C8 alpha-olefin, or any combinations thereof. The composition has a melt flow index in a range of from 8 g/10 minutes to 30 g/10 minutes. A resulting fabricated article, a method of making the composition, and a method of using the composition are also provided.

公开(公告)号：US20200165428A1

公开(公告)日：2020-05-28

申请号：US16690511

申请日：2019-11-21

Applicant: Braskem America, Inc.

Inventor： Kevin Herrington ,  Kimberly Miller McLoughlin

IPC: C08L23/14 ,  C08L23/16 ,  C08L23/18 ,  C08L51/06 ,  C08L33/08 ,  C08L83/04 ,  C08L81/06 ,  C08K5/14

Abstract: A composition comprising polypropylene having a high melt strength suitable for an injection stretch blow molding (ISBM) process is provided. Such a composition includes a polypropylene (PP) copolymer having a branched structure. The PP copolymer is a random copolymer derived from propylene and at least one comonomer selected from ethylene, any C4-C8 alpha-olefin, or any combinations thereof. The composition has a melt flow index in a range of from 8 g/10 minutes to 30 g/10 minutes. A resulting fabricated article, a method of making the composition, and a method of using the composition are also provided.

公开(公告)号：US20230357516A1

公开(公告)日：2023-11-09

申请号：US18142245

申请日：2023-05-02

Applicant: BRASKEM AMERICA, INC.

Inventor： Kimberly Miller McLoughlin ,  Geoffrey Lyne ,  Sarah Mitchell

IPC: C08J3/21 ,  C08J11/16

CPC classification number: C08J3/212 ,  C08J11/16 ,  C08J2323/12 ,  C08J2323/06

Abstract: The invention relates to a process for modifying an olefin polymer composition comprising melt mixing an olefin polymer composition with a free-radical initiator composition comprising a peroxide-modified inorganic composition prepared from: i) a liquid or an aqueous hydrogen peroxide, and ii) one or more inorganic solid particles, wherein the inorganic solid particles have affinity to the hydrogen peroxide through hydrogen bonding. The invention also relates to a modified olefin polymer composition prepared by the process and various articles formed from the modified olefin polymer composition.

公开(公告)号：US20230312783A1

公开(公告)日：2023-10-05

申请号：US18207416

申请日：2023-06-08

Applicant: Braskem America, Inc.

Inventor： Kimberly Miller McLoughlin ,  Rodney Peratt ,  Craig Meverden ,  Michael Stephans

IPC: C08F110/06 ,  C08F2/01 ,  C08F10/06 ,  C08J5/18

CPC classification number: C08F110/06 ,  C08F2/01 ,  C08F10/06 ,  C08J5/18 ,  B29C51/02

Abstract: Propylene-based polymer resins and related compositions and processes are disclosed. The propylene polymer resins have high isotacticity and moderately high xylene soluble content. The polymer resins provide extruded sheets suitable for thermo forming that exhibit both sag resistance and ease of draw.

公开(公告)号：US20160222180A1

公开(公告)日：2016-08-04

申请号：US15010099

申请日：2016-01-29

Applicant: Braskem America, Inc.

Inventor： Kimberly Miller McLoughlin ,  William Scott Miller ,  Michael Robert Stephans ,  Steven Michael Krupinski

IPC: C08J9/00

Abstract: A foamable composition includes a semi-crystalline polyolefin having a crystallinity of at least 50% and a poly(sulfonyl azide) of at least 500 ppm based on the total weight of the foamable composition. The foamable composition has a melt strength of at least 20 cN, a melt drawability of at least 100 mm/s, flexural modulus is greater than about 240,000 psi. Such a composition can be used to make a low density foam having a density in the range from 0.005 g/cm3 to 0.6 g/cm3. A resulting foam or a fabricated article, the methods of the composition and the foam are also provided.

Abstract translation: 可发泡组合物包括结晶度至少为50％的半结晶聚烯烃和基于可发泡组合物总重量的至少500ppm的聚（磺酰基叠氮化物）。 可发泡组合物的熔体强度为至少20cN，熔体拉伸性为至少100mm / s，弯曲模量大于约240,000psi。 这种组合物可用于制备密度在0.005g / cm 3至0.6g / cm 3范围内的低密度泡沫。 得到的泡沫或制造物品，还提供了组合物和泡沫的方法。