Abstract: A method for applying a barrier to structures to prevent the infiltration of pest species (unwanted organisms) uses a (e.g., coating) composition formed from a polyurethane (e.g., film-forming) polymer system and a pellet comprising a pesticide incorporated into a sorbent and dispersed in the polyurethane polymer system. The composition protects the structure by application either to the structure or to a pathway that leads to the structure. Advantageous polymer systems include polyurethanes rich in urea linkages and predominating in aliphatic and alicyclic backbones.
Type:
Grant
Filed:
November 27, 2001
Date of Patent:
June 6, 2006
Assignee:
Termiguard Technologies, Inc.
Inventors:
Peter Van Voris, Dominic A. Cataldo, Edward S. Lipinsky