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: A storage stable one-component air curable urethane coating composition having improved color, abrasion resistance and weather resitance comprising at least twenty percent by weight of resin solids of a compound comprising at least one oxazolidine ring chemically combined from the nitrogen atom of the ring through an alkylene-urethane linking group to a tetramethylxylylenediisocyanate prepolymer radical.The invention also comprises the method for preparing the compound and composition and a method for coating a surface by applying the composition of the invention to the surface and exposing the applied composition to air having a relative humidity of at least 10% and incudes an article coated with the cured composition.

Abstract: The present invention comprises a blend of two polyamide resins (first and second). The first resin comprises dibasic derivatives of fatty acids, monobasic acid and organic polyamines. The second resin comprises isophthalic acid, dibasic derivatives of fatty acids and organic polyamines. The combination of the first and second resins in proportional amounts results in a water dispersible polyamide blend which exhibits good blocking and release properties as well as improved water dispersibility and pigment wetting. This blend is useful in flexographic ink compositions as well as Cold Seal Release Lacquer formulations.

Abstract: A polyester composition having an average molecular weight of greater than 450 comprising a most prevalent compound having a main polyester chain containing at least 17 and fewer than 52 carbon atoms and at least 6 and fewer than 18 oxygen atoms, at least 40 weight percent of the molecules of said composition having a molecular weight within 50% of the average molecular weight of the composition. Often less than 36 weight percent of the molecules of the composition having a molecular weight greater than 150 percent of the average molecular weight and less than 12 weight percent of the molecules of the composition having a molecular weight less than 50 percent of the average molecular weight of the composition. The polyester composition desirably contains at least 1.6 equivalents of unreacted hydroxy groups or at least 1.6 equivalents of unreacted carboxy groups per mole. The composition contains at least four equivalents of ester links in the main chains of the molecules per mole.

Abstract: A polyamide rheological additive especially for organic solvent-based compositions which comprises the reaction product of a defined polycarboxylic acid, active hydrogen compound and capping agent. The additive exhibits excellent efficiency and dispersibility and is especially effective when first predispersed in an organic solvent. Organic solvent-based compositions which may be thickened using the rheological additive are aromatic, aliphatic and some moderately polar solvent-based compositions.

Abstract: A polyester composition having an average molecular weight of greater than 450 comprising a most prevalent compound having a main polyester chain containing at least 17 and fewer than 52 carbon atoms and at least 6 and fewer than 18 oxygen atoms, at least 40 weight percent of the molecules of said composition having a molecular weight within 50% of the average molecular weight of the composition. The polyester composition desirably contains at least 1.6 equivalents of unreacted hydroxy groups or at least 1.6 equivalents of unreacted carboxy groups per mole. The composition contains at least four equivalents of ester links in the main chains of the molecules per mole.The composition of the present invention is obtained by the method of the invention wherein alternating series of reactions are each driven essentially to completion where the final molecule of each reaction provides the only available reaction site for the next alternate monomer reaction.

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 polyester composition having an average molecular weight of greater than 500 comprising a most prevalent compound having a main polyester chain containing at least 17 and fewer than 52 carbon atoms and at least 6 and fewer than 18 oxygen atoms, at least 52 weight percent of the molecules of said composition having a molecular weight within 50% of the average molecular weight of the composition. The polyester composition desirably contains at least 1.6 equivalents of unreacted hydroxy groups or at least 1.6 equivalents of unreacted carboxy groups per mole. The composition contains at least four equivalents of ester links in the main chains of the molecules per mole.The composition of the present invention is obtained by the method of the invention wherein alternating series of reactions are each driven essentially to completion where the final molecule of each reaction provides the only available reaction site for the next alternate monomer reaction.