Abstract: The present invention relates to thermosetting polyurethane structural adhesive composites and compositions and processes for producing the same comprising dispersing an amine-terminated solid polyamide resin into a polyurethane base resin to form a nonactivated adhesive composite, and activating the same by heating to form an adhesive composition. Another aspect of the invention relates to dispersing an amine-terminated solid polyamide resin and a water generating compound into the polyurethane base resin and heat-activating the same to form an adhesive composition. The invention also relates to polyurethane base resins suitable for use in the processes of the invention, which may also be moisture cured to form a reactive adhesive composition.

Abstract: The invention relates to alkyl- or aryl-terminated polyamide compositions and polyamide rheological additives that function as a sag/slump control agent and provide superior shear-thinning and viscosity recovery properties in systems that react with or are sensitive to water and other active hydrogen containing materials and systems that do not react with or are not sensitive to water or other active hydrogen containing materials, and are useful in sealants, caulks, adhesives and coatings.

Abstract: A method of treating lead contaminated soil to reduce the amount of mobile lead contained in the soil, the method which comprises: (a) providing an agent selected from the group consisting of inorganic phosphate compounds, inorganic phosphite compounds and mixtures thereof; and (b) contacting the agent with the soil to react the agent with the lead and form immobilized, acid-insoluble lead compounds, thereby reducing the amount of mobile lead in the soil.

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: An improved organophilic clay gellant which is the reaction product of a smectite-type clay, an organic cation and, optionally, an organic anion. The cation from the smectite-type clay, the anion from the organic cation and, if present, the cation form the organic anion form a by-product which is water, a gas, an insoluble compound or a mixture thereof. The organophilic clay gellant can exhibit improved efficiency and dispersibility. In a process for preparing an organophilic clay gellant which constitutes a further aspect of the present invention, significant advantages can be observed since the liquid remaining after the organophilic clay gellant is separated from the reaction mixture can be recycled for further use without detrimental effect on the quality of the organophilic clay gellant thereafter produced.

Abstract: The present invention relates to foamable thermosetting polyurethane structural adhesive composites and compositions and processes for producing the same comprising dispersing a water-generating curing composition into a polyurethane base resin to form a nonactivated adhesive composite, and activating the same by heating to form an adhesive composition. Another aspect of the invention relates to dispersing a water-generating compound and an amine-terminated solid polyamide resin into the polyurethane base resin and heat-activating the same to form an adhesive composition.

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: An improved organophillic clay gellant which is the reaction product of a smectite-type clay, an organic cation and, optionally, an organic anion. The cation from the smectite-type clay, the anion from the organic cation and, if present, the cation from the organic anion form a by-product which is water, a gas, an insoluble compound or a mixture thereof. The organophilic clay gellant can exhibit improved efficiency and dispersibility. In a process for preparing an organophilic clay gellant which constitutes a further aspect of the present invention, significant advantages can be observed since the liquid remaining after the organophilic clay gellant is separated from the reaction mixture can be recycled for further use without detrimental effect on the quality of the organophilic clay gellant thereafter produced.

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 coating composition useful for increasing the corrosion resistance of a surface is provided. The composition comprises a coating material, a first anti-corrosive agent and a second anti-corrosive agent which is calcium phosphite. The composition may also include fillers and other conventional additives. A process for protecting a surface from corrosion is also provided.

Abstract: A solvent-free coating composition useful for increasing the corrosion resistance of a surface is provided. The composition comprises a solvent-free coating material and an anti-corrosive agent comprised of a calcined mixture consisting essentially of magnesium oxide and zinc oxide with or without calcium oxide. The composition may also include a defined compound which can improve the corrosion resistance and fillers.

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 coating composition useful for increasing the corrosion resistance of a surface is provided. The composition comprises a coating material and an anti-corrosive agent comprised of a calcined mixture consisting essentially of magnesium oxide and zinc oxide with or without calcium oxide. The composition may also include a defined compound which can improve the corrosion resistance, and filler.

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.

Abstract: A substantially pure composition of matter and process for making the same which comprises a zinc hydroxy phosphite complex represented by the theoretical structural formula [2Zn(OH).sub.2. ZnHPO.sub.3 ].XZnO wherein X is a number from 0 to 17 and wherein the structure has infrared absorption frequencies at 3506; 3472; 3282; 3163; 2401; 2361; 1079; 947; 867; and 796 cm.sup.-1, .+-.4.0 cm.sup.-1, and X-ray diffraction d(A) spacings at 9.04; 5.94; 4.44; 3.58; 3.44; 3.38; 2.75; 2.70; and 1.67; .+-.0.02A.