公开(公告)号：US20250034759A1

公开(公告)日：2025-01-30

申请号：US18910120

申请日：2024-10-09

Applicant: President and Fellows of Harvard College

Inventor： Qihan Liu ,  Kevin Kit Parker ,  Huibin Chang

IPC: D01D5/14 ,  D01D5/18

Abstract: Systems and methods for focused direction deposition of a micron or nanometer dimension polymeric fiber and materials of such fibers are described herein. Systems and methods employ one or more gas flows to entrain and deflect fibers produced by a rotary jet spinning system forming a focused fiber stream. Some embodiments enable control of alignment and distribution of the fibers with a relatively high fiber throughput.

公开(公告)号：US11702495B2

公开(公告)日：2023-07-18

申请号：US16634039

申请日：2018-07-24

Applicant: President and Fellows of Harvard College

Inventor： Paul Le Floch ,  Xi Yao ,  Qihan Liu ,  Guodong Nian ,  Canhui Yang ,  Zhigang Suo

IPC: C08F220/56 ,  C08G77/38 ,  D01F8/04

CPC classification number: C08F220/56 ,  C08G77/38 ,  D01F8/04

Abstract: A polymer composite of dissimilar polymers covalently bonded at the interface is disclosed. A method for bonding dissimilar polymers includes providing a first precursor to a hydrogel polymer network comprising a first coupling agent; providing a second precursor to a second polymer network comprising a second coupling agent, wherein the hydrogel polymer network and the second polymer network are different; initiating polymerization of the first precursor to form a hydrogel polymer network, wherein the first coupling agent is incorporated into the polymer network with a negligible amount of condensation; initiating polymerization of the second precursor to form a second polymer network, wherein the second coupling agent is incorporated into the second polymer network with a negligible amount of condensation; contacting one of the first hydrogel precursor or the hydrogel polymer network with one of the second polymer precursor or second polymer networks and initiating condensation between the first and second coupling agents to form a covalent bond.

公开(公告)号：US12139821B2

公开(公告)日：2024-11-12

申请号：US17421047

申请日：2020-01-14

Applicant: President and Fellows of Harvard College

Inventor： Qihan Liu ,  Kevin Kit Parker ,  Huibin Chang

IPC: D01D5/14 ,  D01D5/18

Abstract: Systems and methods for focused direction deposition of a micron or nanometer dimension polymeric fiber and materials of such fibers are described herein. Systems and methods employ one or more gas flows to entrain and deflect fibers produced by a rotary jet spinning system forming a focused fiber stream. Some embodiments enable control of alignment and distribution of the fibers with a relatively high fiber throughput.

公开(公告)号：US20220090300A1

公开(公告)日：2022-03-24

申请号：US17421047

申请日：2020-01-14

Applicant: President and Fellows of Harvard College

Inventor： Qihan Liu ,  Kevin Kit Parker ,  Huibin Chang

IPC: D01D5/14 ,  D01D5/18

Abstract: Systems and methods for focused direction deposition of a micron or nanometer dimension polymeric fiber and materials of such fibers are described herein. Systems and methods employ one or more gas flows to entrain and deflect fibers produced by a rotary jet spinning system forming a focused fiber stream. Some embodiments enable control of alignment and distribution of the fibers with a relatively high fiber throughput.