公开(公告)号：US20220228033A1

公开(公告)日：2022-07-21

申请号：US17614134

申请日：2020-07-23

Applicant: SIKA TECHNOLOGY AG

Inventor： Karsten FRICK ,  Silvia SCHUMACHER ,  Sascha PASULA

IPC: C09J7/26 ,  C09J7/35 ,  C09J7/38

Abstract: An adhesive article including an expandable layer composed of a shape memory polymer composition including a first curable adhesive and at least one thermoplastic elastomer and a first adhesive layer covering at least a portion of the first major surface of the expandable layer, wherein the shape memory polymer composition is in a temporary deformed shape. Further, a method for producing an adhesive article, to a method for bonding two substrates to each other, and to a two-part bonded assembly including a first substrate and a second substrate and adhesive article between the substrates.

公开(公告)号：US20210061981A1

公开(公告)日：2021-03-04

申请号：US16960120

申请日：2018-12-20

Applicant: SIKA TECHNOLOGY AG

Inventor： Karsten FRICK ,  Sascha PASULA ,  Alina KELLER ,  Leslie WOLSCHLEGER ,  Elizabeth FARHAT

IPC: C08L23/08 ,  C08J9/10 ,  C08J9/00

Abstract: A thermally expandable composition includes at least one polymer P cross-linkable by peroxide, and at least one acrylate, and at least one peroxide, azodicarbonamide and a zinc compound. The thermally expandable composition leads to low odor formation and low ammonia emission during and after the foaming process. The thermally expandable composition further shows excellent properties in terms of expansion stability.