Termite and boring insect barrier for the protection of wooden structures
AssigneeBattelle Memorial Institute
InventorsPeter Van Voris, Dominic A. Cataldo
Life of this patent
Estimating the term…
Abstract
A method and device are disclosed which prevent the intrusion of insects into structures by using a controlled release device capable of releasing insecticide. In the disclosed method, the device maintains a minimal effective level of insecticide for a predetermined period of time.
Claims57
A method for creating a barrier to entry of crawling or soil borne insects to provide long term protection of an area of ground, a space, or a structure from intrusion by said insects, said method comprising the following steps:
- (a) placing a controlled release barrier at the entry points to said area, space, or structure, said barrier having an outside surface and comprising a polymeric matrix and a pesticide within said matrix, said matrix having an outside surface;
- (b) allowing the pesticide to release onto the outside surface of the matrix and accumulate on said outside surface of the matrix, the release rate of the pesticide being greater than 0.4 μg/cm2/day and less than 10 μg/cm2/day, said rate being sufficient to deter the insects so as to protect said area, space, or said structure from intrusion by said crawling or soil borne insects.
A method for creating a barrier to entry of crawling or soil borne insects to provide long term protection of an area of ground, a space, or a structure from intrusion by said insects, said method comprising the following steps:
- (a) incorporating a pesticide into a polymer;
- (b) forming the polymer into a polymeric matrix;
- (c) forming a controlled release barrier comprising the polymeric matrix, said matrix having an outside surface;
- and
- (d) allowing the pesticide to release onto the outside surface of the matrix and accumulate on the outside surface of the matrix, the release rate of the pesticide being greater than 0.4 μg/cm2/day and less than 10 μg/cm2/day, said rate being sufficient to deter the insects so as to protect said area, space, or structure from intrusion by said crawling or soil borne insects.
Dependencies are inferred from the claim text.