公开(公告)号：US11753534B2

公开(公告)日：2023-09-12

申请号：US17527949

申请日：2021-11-16

申请人： EQUISTAR CHEMICALS, LP

发明人： Nicholas M. Briggs ,  Ryan Kramb ,  Bryan S. Schley ,  Timothy J. Skillman ,  Jeffrey J. Strebel ,  Jeanine A. Smith ,  David C. Holliman ,  Rocio S. Garay ,  Gilles Jobin

IPC分类号： C08L23/12 ,  C08L23/06 ,  B29C43/00 ,  B29K23/00

CPC分类号： C08L23/12 ,  C08L23/06 ,  B29C43/003 ,  B29K2023/12 ,  C08L2205/025 ,  C08L2205/035 ,  C08L2205/08 ,  C08L2205/12 ,  C08L2207/062 ,  C08L2207/20

摘要： Compositions comprising post-consumer recycled (PCR) waste are described. The PCR is combined with at least one virgin resin and a propylene-based compatibilizer that enhances the blend between the PCR and virgin resin as well as improving one or more physical properties of the composition. The propylene-based compatibilizer is a reactor made thermoplastic polyolefin or a heterophasic copolymer with a semi-crystalline matrix and a rubber component. This allows for the selection of a compatibilizer that can shift the composition's physical properties based on the end use application, and provide a stronger, miscible blend.

公开(公告)号：US10723049B2

公开(公告)日：2020-07-28

申请号：US15648816

申请日：2017-07-13

申请人： EQUISTAR CHEMICALS, LP

发明人： Ryan Kramb ,  Jeanine A. Smith ,  Fabio Ceccarani

IPC分类号： B29C45/00 ,  C08L23/16 ,  C08L23/14 ,  C08L23/12 ,  B29K101/12

摘要： This disclosure provides for compatibilizer compositions that are useful in compounding polypropylenes and ethylene elastomeric copolymers for injection molding applications. The compatibilizer includes a combination of: Component A of polypropylene homopolymers or polypropylene copolymers containing small amounts of ethylene; and Component B of propylene bipolymers with ethylene and/or other α-olefin comonomers, the bipolymer having a relatively high proportion of propylene moieties, for example, 50-75% propylene. Compared to known or conventional compatibilizer formulations, the bipolymer Component B is relatively propylene rich and generally can be used in the injection molding composition in lower concentrations.

公开(公告)号：US20240301181A1

公开(公告)日：2024-09-12

申请号：US18595783

申请日：2024-03-05

申请人： Equistar Chemicals, LP

发明人： Nicholas M. Briggs ,  Ryan Kramb ,  Bryan S. Schley ,  Timothy J. Skillman ,  Jeffrey J. Strebel ,  Jeanine A. Smith ,  David C. Holliman ,  Rocio S. Garay ,  Gilles Jobin ,  Brooke Thacker

IPC分类号： C08L23/06 ,  C08L23/08 ,  C08L23/12 ,  C08L23/14

CPC分类号： C08L23/06 ,  C08L23/0807 ,  C08L23/12 ,  C08L23/142 ,  C08L2205/025 ,  C08L2205/035 ,  C08L2205/08 ,  C08L2207/02 ,  C08L2207/062 ,  C08L2207/20

摘要： Compositions comprising post-consumer recyclate polyolefins are described herein. The post-consumer recyclate are blended with virgin resin using a compatibilizer and an impact modifier. The resulting blends showed improved physical properties compared with compositions not containing compatibilizers and/or the impact modifier. The variability in physical properties upon addition of compatibilizer and impact modifier allows for selection of resins to produce blended resins with desired physical properties for a wider range of applications than was previously possible with recycled plastics.