公开(公告)号：US12054653B2

公开(公告)日：2024-08-06

申请号：US17327944

申请日：2021-05-24

申请人： Massachusetts Institute of Technology

发明人： Xuanhe Zhao ,  Hyunwoo Yuk ,  Xiaoyu Chen

IPC分类号： C09J7/32 ,  A61L24/00 ,  C08K5/00 ,  C09J7/20 ,  C09J105/00 ,  C09J109/04 ,  C09J125/08 ,  C09J129/04 ,  C09J133/06 ,  C09J133/10 ,  C09J133/26 ,  C09J151/00 ,  C09J175/00 ,  C09J181/08

CPC分类号： C09J7/32 ,  A61L24/0031 ,  C08K5/0025 ,  C09J7/20 ,  C09J105/00 ,  C09J109/04 ,  C09J125/08 ,  C09J129/04 ,  C09J133/064 ,  C09J133/066 ,  C09J133/10 ,  C09J133/26 ,  C09J151/003 ,  C09J175/00 ,  C09J181/08 ,  C09J2301/10 ,  C09J2301/306 ,  C09J2301/502 ,  C09J2405/00 ,  C09J2429/00 ,  C09J2433/00 ,  C09J2451/00 ,  C09J2475/00

摘要： An adhesive material that provides fast and robust adhesion on wet surfaces, where the adhesion formed is detachable on-demand. The adhesive material is formed of one or more hydrophilic polymers or copolymers grafted with one or more amine coupling groups via a plurality of cleavable physical bonds and/or cleavable covalent bonds and one or more cross linkers. Application of the adhesive material on a wet surface causes the adhesive material to absorb liquid to thereby swell the adhesive material to form a layer of hydrogel, resulting in the formation of temporary crosslinks followed by covalent crosslinks with the surface. Introducing a triggering agent cleaves the cleavable physical bonds and/or cleavable covalent bonds to allow for non-traumatic detachment of the adhesive material from the surface.

公开(公告)号：US20230167343A1

公开(公告)日：2023-06-01

申请号：US17995762

申请日：2021-04-19

申请人： Kraton Polymers LLC

发明人： Vijay Mhetar ,  Richard Blackwell ,  Roger Tocchetto ,  Sharman McGilbert ,  Lee Barnes ,  Bharadwaja Peddinti

IPC分类号： C09J181/08 ,  C09J7/20 ,  C09J9/00

CPC分类号： C09J181/08 ,  C09J7/203 ,  C09J9/00 ,  C09J2301/122 ,  C09J2301/312 ,  C09J2301/408

摘要： The disclosure relates to laminate structures to cover or protect substrates or surfaces. The laminate structure comprises a support layer and a self-sterilizing/antimicrobial layer comprising a sulfonated polymer, capable of killing microbes within minutes and for an extended period of time. The sulfonated polymer has a sufficient degree of sulfonation to kill in less than 120 minutes at least 90% of microbes in contact with the surfaces, and for extended protection of the surfaces for at least one month. The laminate structure is particularly suitable for protecting high-touch surfaces such as door knobs, touch-screens, tables, as well as for use with facemasks, face shields, or as self-sterilizing wraps for surgical instruments and supplies. The laminates can also be used as garments or to cover/protect personnel having contagious diseases, etc., to decrease the transmission of microbes.