公开(公告)号：US20230084211A1

公开(公告)日：2023-03-16

申请号：US17891905

申请日：2022-08-19

Applicant: KANEKA CORPORATION

Inventor： Samuel Kyran ,  Young Hoon Lim

IPC: C08G12/08 ,  C08K7/02 ,  C08J11/16

Abstract: A degradable resin composition comprising at least one benzoxazine group in a backbone or as an endcap and at least one cleavable covalent bond is provided. Also provided is a thermoset composition comprising a cured benzoxazine-based resin composition including at least one imine group. A degradable resin composition comprising at least one benzoxazine group in a backbone or an endcap, at least one acetal group, and at least one acrylate group is also provided. A method of recycling a resin composition includes providing a cured polymer resin composite which comprises a cured benzoxazine-based resin composition including at least one cleavable covalent bond, and fibers. The method then includes exposing the cured polymer resin composite to an acid, thereby cleaving the at least one cleavable covalent bond to produce a degraded polymer resin, and removing the fibers from the degraded polymer resin.

公开(公告)号：US20240010794A1

公开(公告)日：2024-01-11

申请号：US18026929

申请日：2021-09-29

Applicant: KANEKA CORPORATION

Inventor： Samuel Kyran

IPC: C08G73/02 ,  C08J3/00 ,  C08L79/04

CPC classification number: C08G73/0233 ,  C08J3/005 ,  C08L79/04 ,  C08J2379/04 ,  C08J2463/00

Abstract: A self-healing resin composition of a polymer formed from the reaction between a thermoplastic polymer having terminal functional groups and a benzoxazine compound is provided. Also provided is a method of forming such a self-healing resin composition. A method of self-healing an article is also provided. In such a method, an article may have a rupture, and may be formed from a polymer resulting from reaction between a thermoplastic polymer having terminal functional groups and a benzoxazine compound. The method may include maintaining the article formed from the polymer at a predetermined temperature for a predetermined time such that the rupture is repaired.

公开(公告)号：US20230174718A1

公开(公告)日：2023-06-08

申请号：US17916490

申请日：2021-03-31

Applicant: KANEKA CORPORATION

Inventor： Samuel Kyran ,  Masahiko Miyauchi ,  Tianlei Zhou

IPC: C08G73/10

CPC classification number: C08G73/101 ,  C08G73/1032 ,  C08G73/1071 ,  C08G73/1025

Abstract: A hybrid thermoplastic-thermosettable resin composition may include a polymeric backbone formed from a thermoplastic unit, and at least one crosslinkable group bonded to the thermoplastic. A method of forming a hybrid thermoplastic-thermosettable resin composition may include reacting a thermoplastic to introduce a cross-linkable group to form the thermoplastic-thermosettable resin composition. A method of forming a hybrid thermoplastic-thermoset resin may include providing a hybrid thermoplastic-thermosettable resin composition comprising a polymeric backbone formed from a thermoplastic unit, and at least one crosslinkable group bonded to the thermoplastic; and curing the hybrid thermoplastic-thermosettable resin composition by an external stimulus to form the hybrid thermoplastic-thermoset resin.