| abstract |
The invention is directed to a thermally expandable composition comprising at least one polymer, optionally at least one free radical initiator, at least one chemical blowing agent, and silane groups. The invention is also related to baffle and/or a reinforcement element for hollow structures comprising the thermally expandable composition, to a process for manufacturing the baffle and/or reinforcement element, to use of the baffle and/or reinforcement element for sealing, baffling, or reinforcing of a cavity or a hollow structure, and to a method for sealing, baffling and/or reinforcing a cavity or hollow structure. |