公开(公告)号：US11634617B2

公开(公告)日：2023-04-25

申请号：US16478369

申请日：2017-12-20

Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE

Inventor： Masanobu Naito ,  Sandip Das ,  Debabrata Payra

IPC: C09J199/00 ,  C09J7/35 ,  C08G18/73 ,  C08G18/75 ,  C08G18/76 ,  C08K3/013 ,  C08K3/08 ,  C08K3/26 ,  C08K5/1515 ,  C08K5/1535 ,  C08K7/14

Abstract: The present invention has for its object to provide an adhesive composition that is based on a naturally occurring material less likely to have adverse influences on the human body and has a tensile shear strength (adhesive strength) of at least 1 MPa with respect to a variety of adherends. The present invention provides an adhesive composition including at least a first pack and a second pack, wherein the first pack contains a tannic acid derivative in which a hydrogen atom in at least some hydroxyl group of tannic acid is substituted by a chain hydrocarbon group having at least one hydroxyl group, and the second pack contains a hydrocarbon having at least two cyanate groups or a derivative of the hydrocarbon.