公开(公告)号：US20210363395A1

公开(公告)日：2021-11-25

申请号：US17297173

申请日：2019-12-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adrian T. JUNG ,  Mareike BARDTS ,  Dirk HASENBERG

IPC: C09J163/00 ,  C08G59/24 ,  C08G59/54 ,  C08G59/50 ,  C08G59/56 ,  C08K5/00 ,  C09J9/00 ,  C09J5/06

Abstract: The present disclosure provides a method for bonding parts, comprising the following steps (a) Providing a two-component adhesive composition precursor, comprising a first part (A) comprising at least one epoxy curing agent and preferably at least one first dye; a second part (B) comprising at least one second dye different from the at least one first dye and at least one epoxy resin; (b) Mixing part (A) and part (B) of the two-component adhesive composition precursor so as to obtain an adhesive composition; (c) Applying the adhesive composition onto a first part; (d) Applying a second part onto the adhesive composition applied to the first part; and then performing a first curing step at a first temperature, wherein the adhesive composition undergoes a first colour change; or (e) Performing a first curing step at a first temperature, wherein the adhesive composition undergoes a first colour change, and then applying a second part onto the adhesive composition applied to the first part; (f) Perform a second curing step at a second temperature higher than the first temperature, thereby fully curing the adhesive composition so as to obtain a structural adhesive bond between the first and second parts, wherein the adhesive composition undergoes a second colour change.

公开(公告)号：US20230391991A1

公开(公告)日：2023-12-07

申请号：US18249429

申请日：2021-09-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lalitha V.N.R. GANAPATIBHOTLA ,  Michael A. KROPP ,  Emelie M. FRITZ ,  Adrian T. JUNG

IPC: C08L9/00 ,  C09J109/00 ,  H01M10/653 ,  H01M50/209 ,  H01M50/293

CPC classification number: C08L9/00 ,  C09J109/00 ,  C08L2205/03 ,  H01M50/209 ,  H01M50/293 ,  H01M10/653

Abstract: A curable composition includes a polyol component including one or more polyols; a functional butadiene component; and filler particles; wherein the curable composition has, upon curing, a thermal conductivity of at least 3.0 W/(mK). The filler particles include aluminum trihydrate (ATH) and a smoke suppressant selected from zinc hydroxy stannate (ZHS), zinc stannate, calcium stannate, calcium hydroxy stannate and any combination thereof.

公开(公告)号：US20210340406A1

公开(公告)日：2021-11-04

申请号：US17281104

申请日：2019-10-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adrian T. JUNG ,  Boris TASCH ,  Dirk HASENBERG ,  Olaf LUDEWIG ,  Elisabeth CURA

IPC: C09J5/06 ,  C08G65/20 ,  C08G59/50 ,  C08G65/333 ,  C08K5/00 ,  C09J9/00

Abstract: The present disclosure relates to a curable precursor of a structural adhesive composition, comprising: a) a cationically self-polymerizable monomer; b) a polymerization initiator of the cationically self-polymerizable monomer which is initiated at a temperature T1; c) a curable monomer which is different from the cationically self-polymerizable monomer; and d) a curing initiator of the curable monomer which is initiated at a temperature T2 and which is different from the polymerization initiator of the cationically self-polymerizable monomer. According to another aspect, the present disclosure is directed to a partially cured precursor of a structural adhesive composition. According to still another aspect, the present disclosure relates to a method of bonding to parts. In yet another aspect, the disclosure relates to the use of a curable precursor or a partially cured precursor as described above, for industrial applications, in particular for body-in-white bonding applications for the automotive industry.