Conwed Corporation

Conweb Corporation

Otis R Videen

Donald E Wiegand

Frederick H Riedel

A viscous liquid containing dye and possibly further additives is added to a package of hydraulic mulch material for hydraulic mulching. The viscous liquid and its additives are suitable to be later uniformly mixed through the hydraulic mulch during subsequent mixing and agitation with water prior to application, thereby eliminating the need for precoloring of the mulch material.

Method and device for coloring bulk hydro mulch fibers

A reinforced sheet product for selective sorption of an immiscible liquid from a liquid mixture is disclosed. The reinforced sheet product comprises a flexible net-like reinforcing structure secured between at least two sheets or layers of non-woven material predominately composed of cotton which are preferentially sorptive of one liquid over another liquid in the mixture. The product according to the invention finds particular application as a lightweight reinforced wiping cloth or towel especially useful for removing oil from an aqueous mixture.

Selectively sorptive reinforced sheet

Material comprising blends of polymeric and cellulosic fibers is disclosed which is particularly suited for removing oil from aqueous mixtures thereof. The fibers are binded into a web or mat-like structure or blended in an unbonded form and retained by a fine mesh net-like enclosure. The polymeric fiber may be a foamed fiber and a method for producing foamed polymeric fibers is disclosed.

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Saint Paul, MN, United States of America

Otis R Videen