Insect resistant foam body useful in farm buildings

Details Insect resistant foam body useful in farm buildings Insect resistant foam body useful in farm buildings

1991-12-16

1992-09-22

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

156 71, 4283044, 4283144, 521146, 521155, 521910, C08J 914, E04B 200

Patent

active

051497263

ABSTRACT:
The invention is a plastic foam body which is resistant to the boring of insects and is useful in insulating buildings subject to such boring comprising a foamed thermoplastic polymer having a plurality of closed non-interconnecting cells, a minimum cross-sectional dimension of at least 30 mm, the foam body being without discontinuities and substantial variation in average cell size when cell size, wherein the foam body has a density, d, of 40 kg/m.sup.3 or greater, and average cell dimensions of at least 1.0 mm, V, E, and H in three mutually perpendicular directions at least 1.0 mm or greater in the second directions, at least 1.0 mm and 0.9 mm respectively and a resistance factor, R, of 600 or greater as calculated by Formula 1 ##EQU1## In another embodiment of the invention is a method of insulating buildings subject to the boring of insects into the insulation thereof using the plastic foam bodies of the invention.

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