Abstract: A process to reduce the chemical oxygen demand and total solids content of waste water from a fiberglass manufacturing process comprises acidifying the waste water to a pH of from about 2.5 to about 5.5 by the addition of a non-toxic inorganic acid; neutralizing the acidified water to a pH of from about 7 to about 9 by the addition of a non-toxic inorganic base; adding a flocculating agent to the treated water; and separating the suspended solid material from the treated water.

Abstract: A metal surface upon which a conversion coating has already been formed, is treated by contacting the surface with an aqueous solution consisting of a soluble zirconium containing compound, thereby improving the qualities of the conversion coating.

Abstract: An acidic aqueous coating solution for forming on an aluminum surface a coating which is corrosion resistant and to which overlying coatings adhere excellently is disclosed. The coating solution contains compounds of zirconium and fluorine. The use of boric acid in the solution is disclosed also. The coating solution is capable of forming on an aluminum surface a uniformly colorless and clear coating so that the coated surface has the appearance of the underlying metal surface, that is, the coating can be formed without changing the appearance of the metal surface. When coating a shiny bright aluminum surface, there can be produced a coated surface having a uniformly shiny bright appearance which is maintained even after the coated surface is subjected to boiling water.

Abstract: Uses of Limonene Derivatives involving chemical compositions of the quaternary ammonium type as derived from limonene, possess plant growth regulant, nematocidal and fungicidal properties. They are suitable for use at concentrations varying from as little as several parts per million parts of carrier, to as much as several thousand parts per million parts of carrier. Compositions useful in the present invention are exemplified by benzyl dimethyl (1-hydroxy-p-menth-8-en-2-yl) ammonium chloride, but many other compounds of somewhat different character are contemplated.

Abstract: Acidic aqueous coating compositions containing an organic coating-forming material form coatings on metallic surfaces which are immersed therein. The thickness or weight of the coating formed by the coating composition is a function of the time the metallic surface is immersed in the composition. The resulting coatings have adhesion properties thereby providing an adherent base to which other coatings, for example, paint primers and/or final finish paints can be applied.

Abstract: Method and apparatus for agitating an acidic aqueous coating composition containing dispersed particles of an organic coating-forming material are disclosed. Movable vanes are disposed beneath the surface of a bath of the composition. The vanes have a relatively large surface area and are moved through the bath at low speed so that the shear stress imposed on the dispersed particles is minimized. This prolongs the stability of the composition.

Abstract: Eradication of oak and other woody plants is obtained through a synergistic effect derived from the application of herbicides of two different groups wherein the first group consists of a chlorinated aliphatic acid which can be trichloroacetic acid or 2,2-dichloropropionic acid; and the second group consists of 2,4-dichlorophenoxyacetic acid, 2,4,5-trichlorophenoxyacetic acid, 2,4-dichlorophenoxypropionic acid, 2,4,5-trichlorophenoxypropionic acid, 2-methyl-4-chlorophenoxyacetic acid, 3,6-dichloro-o-anisic acid, 2,3,6-trichlorobenzoic acid and 4-amino-3,5,6-trichloropicolinic acid.

Abstract: In the continuous strand method of processing high carbon steel wire for subsequent cold deformation, a zinc phosphate conversion coating is rapidly formed on the steel surface to aid in the subsequent deformation by contacting the steel surface with an aqueous acidic coating solution comprising phosphate, zinc and nitrate.

Abstract: Polymeric resinous coatings are formed on metallic surfaces by immersing them in an acidic aqueous coating composition comprising an oxidizing agent and a coating-forming polymeric resin dispersed in said composition by a dispersing agent said resin and dispersing agent being present in a predetermined proportion. The coating composition tends to become unstable as it is used. The stability of the coating composition is maintained by controlling the amounts of metal ions which tend to build-up in the bath and/or the dispersing agent. Specifically, dispersing agent and resin are added to said coating composition in amounts to replenish these ingredients and in a proportion such that the proportion of said added dispersing agent to said added resin is greater than said predetermined proportion and sufficient to maintain the stability of the dispersed resin in the composition thereby prolonging the operability of the coating composition.

Abstract: A coating solution comprising trivalent chromium and one or more cations selected from the group consisting of manganese, bismuth, antimony tin, zinc and molybdenum is employed in a process wherein the solution is contacted with a metallic surface to form a corrosion resistant coating. The coating can be force dried or can be treated with a passivating solution.

Abstract: A spraying apparatus and a method for spraying a liquid in a pattern which can be adjusted without stopping the spraying operation. The apparatus comprises a pair of nozzles, each including an orifice providing a liquid stream therefrom. The nozzles are mounted on opposed radially extending arms, each arm extending a predetermined distance along an axis which is normal to the central axis of the apparatus. Means are provided for adjusting the angular orientation of the nozzles with respect to the central axis to enable each nozzle's orifice to extend at any predetermined angle within the range of parallel to the central axis up to an angle of approximately 45.degree. with respect to the central axis. When the nozzles are oriented with their respective orifices parallel to the central axis the apparatus provides a pair of liquid streams in a relatively straight line which is parallel to the axis.