Abstract: A process for treating wastepaper to remove oily waste and inorganic components, which comprises: (a) forming an organoclay treating composition in a wastepaper aqueous system; (b) contacting the wastepaper aqueous system with an amount of the organoclay effective to remove from the wastepaper oily waste and inorganic components; and (c) recovering paper pulp from the aqueous system. The process is effective in wastepaper treatment systems using both air flotation removal as well as systems utilizing water-washing processes.

Abstract: A theological additive especially for liquid organic systems containing a castor-oil derivative with hydroxyl values below that appearing in nature. The additive may also contain clays and other extenders. The preferred derivative is castor wax. The additive largely eliminates the long term problem of seeding exhibited by paints and coatings using castor-oil derived additives while simultaneously providing improved dispersability and viscosity modifying qualities.

Abstract: A process for deinking wastepaper, which comprises: (a) forming an organoclay deinking agent in an aqueous system; (b) contacting ink from wastepaper in the aqueous system with an amount of the organoclay deinking agent effective to deink the wastepaper; and ( c ) recovering deinked paper pulp from the aqueous system.

Abstract: A process for deinking wastepaper with an aqueous system, which includes:(a) contacting wastepaper with an aqueous system which contains an agent of one or more organically modified smectite-type clays; and(b) recovering deinked paper pulp from the aqueous system.

Abstract: A present invention relates to a method of treating waste water for organic contaminants by contacting the waste water with a water dispersible organoclay consisting of the reaction product of at least one ammonium salt and at least one smectite clay, or alternatively, separately with at least one ammonium salt and at least one smectite clay wherein at least one ammonium salt contains at least one hydrophobic group and at least one ammonium salt contains at least one hydrophilic group and wherein said at least one ammonium salt in combination with said at least one smectite clay has a modified methylene blue test value of at least 25 percent sites exchanged.

Abstract: The present invention relates a method for detackifying paint overspray comprising contacting the paint overspray with reduced cation exchange capacity smectite clays and organoclays.

Abstract: Improved organophilic clay gellants can be prepared by a process wherein the smectite-type clay is subjected to shearing in order to break apart the agglomerates and/or the smectite-type clay can be reacted with organic cation and, possibly organic anion, under dilute reaction conditions. The reaction product is recovered using gentle drying conditions. Depending in large part on its composition, the organophilic clay gellant may be used to thicken a variety of organic compositions. In a preferred aspect, the organophilic clay gellant can be directly added to polyester compositions in order to efficiently and effectively increase the viscosity thereof or can be first formed into a pregel under low shear conditions to yield even higher efficiencies.

Abstract: Improved organophilic clay gellants can be prepared by a process wherein the smectite-type clay is subjected to shearing in order to break apart the agglomerates and/or the smectite-type clay can be reacted with organic cation and, possibly organic anion, under dilute reaction conditions. The reaction product is recovered using gentle drying conditions. Depending in large part on its composition, the organophilic clay gellant may be used to thicken a variety of organic compositions. In a preferred aspect, the organophilic clay gellant can be directly added to polyester compositions in order to efficiently and effectively increase the viscosity thereof or can be first formed into a pregel under low shear conditions to yield even higher efficiencies.

Abstract: A preactivated organophilic clay gellant that may be used to thicken organic compositions, especially, lubricating greases without the presence of a polar activator. The preactivated organophilic clay gellant may be prepared using certain process parameters namely shearing of the smectite-type clay prior to reaction with the organic cation, dilute reaction conditions and gentle drying of the organophilic clay or the preactivated organophilic clay gellant.

Abstract: A process for preparing high quality titanium dioxide which exhibits excellent reflectance and tint strength when incorporated into a coating formulation. The process involves the preparation of a seed solution wherein one of the seed curing factors of time, temperature and amount of alkaline neutralizing agent are varied to establish maximum reflectance and tint strength values obtained by the final product. The process can be repeated to analyze one or both of the other factors. The process can be used to prepare titanium dioxide in the anatase or rutile form and on a batch or continuous basis.