Abstract: An intumescent strip includes a first material layer and an opposing second material layer. A third material layer, formed from an intumescent material, is positioned between the first and second layers. The intumescent material includes a combination of intumescent particles suspended within a thermoplastic material. The intumescent particles have an activation temperature and are expandable when exposed to temperatures above the activation temperature. The thermoplastic material has a melting temperature that is lower than the activation temperature.
Type:
Grant
Filed:
September 24, 2010
Date of Patent:
July 31, 2012
Assignee:
Lanotek Products Inc.
Inventors:
Kevin B. Langille, Dat T. Nguyen, Ho T. Nguyen, An Cong Bach