Root repelling pipe joints

A - Human Necessities – 01 – N

Patent

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47/21, 71/40, 13

A01N 33/18 (2006.01) A01N 25/34 (2006.01) E03F 3/04 (2006.01) F16L 21/02 (2006.01) F16L 57/00 (2006.01)

Patent

CA 1323770

ABSTRACT OF THE DISCLOSURE This invention relates to the exclusion of roots from underground pipelines. This is done by positioning, in the joints of the pipes, an organic polymer mixed with a dinitro- aniline, for example, trifluralin. The composition may be placed in the joint in the form of a ring of material.

576149

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