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.