公开(公告)号：US20220267562A1

公开(公告)日：2022-08-25

申请号：US17605831

申请日：2020-04-23

Applicant: Northwestern University ,  Cornell University ,  Regents of the University of Minnesota

Inventor： David J. Fortman ,  William R. Dichtel ,  Daylan T. Sheppard ,  Kailong Jin ,  Christopher J. Ellison

IPC: C08J11/26 ,  C08G18/24 ,  C08G18/12 ,  C08G18/08 ,  C08G18/48 ,  C08G18/42 ,  C08G18/76 ,  B01J31/04 ,  B01J31/22

Abstract: Disclosed herein are methods for reprocessing polyurethane compositions such as polyurethane foams. The method comprises introducing a polyurethane composition into a compounding device, heating the polyurethane composition to an effective bond-exchange temperature, and compounding the polyurethane composition for an effective bond-exchange time.

公开(公告)号：US20230159690A1

公开(公告)日：2023-05-25

申请号：US17917848

申请日：2021-04-07

Applicant: Regents of the University of Minnesota

Inventor： Christopher J. Ellison ,  Marc A. Hillmyer ,  Hee Joong Kim

IPC: C08F293/00 ,  C09J167/04

CPC classification number: C08F293/00 ,  C09J167/04

Abstract: Polymers, including homopolymers, copolymers, block copolymers, comprising poly(pentadecyl caprolactone), methods of making the polymers, and pressure sensitive adhesives including the polymers.

公开(公告)号：US20240294704A1

公开(公告)日：2024-09-05

申请号：US18573327

申请日：2022-06-21

Applicant: Regents of the University of Minnesota

Inventor： Christopher J. Ellison ,  Marc Andrew Hillmyer ,  Hee Joong Kim

IPC: C08G63/06 ,  C08G63/08 ,  C08G63/183 ,  C08G63/85

CPC classification number: C08G63/065 ,  C08G63/08 ,  C08G63/183 ,  C08G63/85

Abstract: Provided herein are copolymers with salicylic acid moieties in the backbone and degradable polyester copolymers.

公开(公告)号：US20230145742A1

公开(公告)日：2023-05-11

申请号：US17985488

申请日：2022-11-11

Applicant: Regents of the University of Minnesota

Inventor： Christopher J. Ellison ,  Timothy M. Kowalewski ,  Lorraine F. Francis ,  Matthew M. Hausladen ,  Boran Zhao ,  Matthew Kubala

IPC: B25J18/02 ,  B29C48/09 ,  B29C48/94 ,  B29C48/91

CPC classification number: B25J18/02 ,  B29C48/09 ,  B29C48/94 ,  B29C48/91 ,  B29C2948/92066

Abstract: Some aspects of the present disclosure relate to systems and methods for polymer-based extrusion. Some non-limiting embodiments provide for extrusion of a liquid photopolymerizable monomer in a channel/die with the aid of a lubricating component, such as poly(dimethylsiloxane)-graft-poly(ethylene oxide) grafted copolymer (PDMS-PEO), and driven by fluid pressure (e.g., a fluid pump). Other aspects of the present disclosure relate to growing soft robots. Some non-limiting embodiments provide a novel class of robots which grow in an environment by growing at their tip (or robot head) by using the self-lubricated photopolymerization extrusion techniques of the present disclosure. Emulating biological tip growth, this process is facilitated by converting an internal monomer fluid into the solid body of the growing robot through polymerization.

公开(公告)号：US20230322834A1

公开(公告)日：2023-10-12

申请号：US18131673

申请日：2023-04-06

Applicant: Regents of the University of Minnesota

Inventor： Theresa M. Reineke ,  Christopher J. Ellison ,  Mayuri Kiran Porwal ,  Derek J. Saxon

IPC: C07H1/08 ,  C07H3/10

CPC classification number: C07H1/08 ,  C07H3/10

Abstract: Provided herein are polymers derived from levoglucosan, methods of preparing said polymers, and methods of modifying said polymers.