公开(公告)号：US20210190742A1

公开(公告)日：2021-06-24

申请号：US16721237

申请日：2019-12-19

申请人： Braskem S.A.

发明人： Murilo Lauer Sanson ,  Mariele Kaipers Stocker ,  Rodrigo Brambilla ,  Arthur Alaim Bernardes ,  Marcia Pires Fortes Ferreira ,  Leonardo Batista Ito

IPC分类号： G01N31/22 ,  C08K9/10 ,  B33Y70/10 ,  B65D65/40

摘要： Packaging materials may include a packaging material formed from an intelligent polymer composition, wherein the intelligent polymer composition includes a matrix polymer and an indicator, wherein the indicator triggers a color change in the intelligent polymeric composition when exposed to an external stimulus, and wherein the intelligent polymer composition is configured to contact a material enclosed within the packaging material. Methods may include forming a packaging material from an intelligent polymer composition, wherein the intelligent polymer composition includes a matrix polymer and an indicator, wherein the indicator triggers a color change in the intelligent polymeric composition when exposed to an external stimulus, and wherein the intelligent polymer composition is configured to contact a material enclosed within the packaging material.

公开(公告)号：US20190002676A1

公开(公告)日：2019-01-03

申请号：US16025418

申请日：2018-07-02

申请人： Braskem S.A.

发明人： Marcia Silva Lacerda Miranda ,  Daiane Schilling de Vargas ,  Adriane Gomes Simanke ,  Rodrigo Brambilla ,  Arthur Alaim Bernardes

IPC分类号： C08L23/08 ,  C08J5/18 ,  C08J3/00

摘要： A polymer composition may include a plurality of ethylene-based polymers forming a multimodal composition distribution, each having a distinct crystallization peak in a CEF curve. A process of making a polymer composition may include melt blending a plurality of polyethylenes with different microstructural characteristics in the molten state. Another process of making a polymer composition may include polymerizing ethylene and an optional alpha olefin in combination with a plurality of metallocene catalysts in a polymerization reactor to form a plurality of ethylene based polymers. Yet another process of making a polymer composition may include polymerizing ethylene and an optional alpha olefin in combination with a multimetal catalyst in a polymerization process to form a plurality of ethylene based polymers.

公开(公告)号：US10774205B2

公开(公告)日：2020-09-15

申请号：US16025418

申请日：2018-07-02

申请人： Braskem S.A.

发明人： Marcia Silva Lacerda Miranda ,  Daiane Schilling de Vargas ,  Adriane Gomes Simanke ,  Rodrigo Brambilla ,  Arthur Alaim Bernardes

IPC分类号： C08J5/18 ,  C08L23/08 ,  C08J3/00

摘要： A polymer composition may include a plurality of ethylene-based polymers forming a multimodal composition distribution, each having a distinct crystallization peak in a CEF curve. A process of making a polymer composition may include melt blending a plurality of polyethylenes with different microstructural characteristics in the molten state. Another process of making a polymer composition may include polymerizing ethylene and an optional alpha olefin in combination with a plurality of metallocene catalysts in a polymerization reactor to form a plurality of ethylene based polymers. Yet another process of making a polymer composition may include polymerizing ethylene and an optional alpha olefin in combination with a multimetal catalyst in a polymerization process to form a plurality of ethylene based polymers.