THERMALLY EXPANDABLE COMPOSITIONS COMPRISING A CHEMICAL BLOWING AGENT
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United States of America Patent
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Nov 24, 2022
app pub date -
Aug 17, 2020
filing date -
Aug 17, 2020
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Abstract
A thermally expandable composition which includes at least one thermoplastic polymer, at least one chemical blowing agent, at least one free radical initiator, and at least one co-agent having at least two maleimide groups. The invention is also related to a baffle and/or a reinforcement element for hollow structures including the thermally expandable composition, to a process for manufacturing the baffle and/or the reinforcement element, to use of the baffle and/or the 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.
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