Title: Ground covering material

Abstract: A vegetation suppressing, ground covering agronomic mulch sheet adapted for the prevention and/or control of undesirable plant growth is disclosed. The sheet is comprised of a web having a maximum light transmittance of about 60% and a minimum air permeability of about 200 1/m.sup.2 s at a pressure differential of 10 mm water.

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Other info:

Inventors: Tesch, Gunter H. (Fribourg, CH)

Application Number: 726228
Filing Date: 1976-09-24
Publication_date: 1977-09-13
Assignee: Breveteam S.A. (Fribourg, CH)
Primary Class(es): 47/9
Other Classes:
US Patent Ref:

1553035	Sep, 1925	Eckart	47/9.
1930939	Oct, 1933	Horner	47/9.
3252250	May, 1966	Lemaire	47/9.
3805446	Apr, 1974	Aoyagi	47/9.
3810328	May, 1974	Bryan et al.	47/9.
3839139	Oct, 1974	Ito et al.	47/9.
3955319	May, 1976	Smith	47/9.
3975859	Aug, 1976	Muller	47/9.

Other Refs:
Primary Examiner: Bagwill, Robert E.
Assistant Examiner:
Attorney: Bacon & Thomas