Rheox Inc.

Elementis Specialties, Inc.

James Gambino

Keith R McNally

Charles A Cody

Wilbur S Mardis

Hemi N Nae

Murray C Cooperman

Dennis Laba

Bruce A Tavares

Hans-Jurgen Pierkes

Michel Janssen

Will Mardis

An anti-abrasion additive for ink formulations includes sintered polytetrafluoroethylene in a reduced amount; a petrolatum; and a high melting point microcrystalline wax. The additive, when dispersed in an ink, provides the ink with good slip, abrasion resistance, low misting, and mar resistance.

Anti-abrasion ink additives containing reduced amounts of polytetrafluoroethylene and inks containing such additives

A flexible capsule formed from a modified starch free of animal based gelatin. The invention provides a novel capsule defining a closed interior chamber, the capsule being formulated from a composition which is free of animal based gelatin comprising at least one plant based starch having been modified to have gelatin like properties; and a paint ball formulation, drug, vitamin, perfume or bath product contained within the capsule.

Flexible gelatin free encapsulation material useful for pharmaceuticals, paint balls and other formulations

An improved drilling fluid with enhanced anti-settling properties useful for oil well drilling systems is described. The invention includes a process for providing anti-settling properties to oil invert (i.e., water in oil emulsion) based fluids. The drilling fluid/drilling mud invention contains at least one copolymer reaction product of which the reactants comprise at least one ethylenically unsaturated carboxylic compound and at least one alpha-olefin. As an alternative embodiment one or more rheologically-active clays including organoclays and smectite clays in combination with such copolymer reaction product are also added to the drilling fluid. The invention also includes an anti-settling additive comprising a rheologically active clay and the above described copolymer.

Oil well drilling fluids with improved anti-settling properties and

The invention hereof is a new highway deicing additive and a method for deicing asphalt highways. It has been discovered that a small amount of starch added to the salt/water sprayed on highways provides the unexpected property of retaining salt particles in the top portion of the 'voids' in the asphalt roads for a period of 2 to 4 hours. The starch can be incorporated into water by mixing; biocides can be added if the starch/water mixture is to be stored more than 2 days. Salt is added to the water/starch mixture prior to deposition on the road. The new treatment works by increasing the viscosity of the aqueous fluid sprayed on the highway to form a water gel structure on the road providing a 'platform' for the salt particles in the top portion of the asphalt. The new additive also reduces the need and cost of 'follow-up' salt treatments. The additive and method are particularly useful for the new type of asphalt being used on highways in Europe which has a super-porous structure when laid as a road-bed.

Method for deicing highways using starch-containing compositions and

The invention involves biopolymer/oil suspension compositions for the oil service industry, most particularly drilling and completion fluids, which provide such fluids a variety of desirable properties. Biopolymers include water soluble polymers and water swellable polymers. Such biopolymer/oil suspension compositions are essentially mixtures of biopolymers such as cellulosics in an oil medium with a specific anti-settling additive. The invention is particularly directed to providing enhanced anti-settling properties to such biopolymer/oil compositions; that is, the ability of the biopolymer/oil composition to retain the biopolymers in suspension prior to the composition being introduced into drilling and completion fluids. The invention in one embodiment is described as a liquid biopolymer-in-oil additive compositions for use in aqueous-based completion fluids, containing an agent comprising: a) one or more polyamides, and b) hydrogenated caster oils including castorwax.

Biopolymer/oil suspension compositions utilized in aqueous-based fluids

An improved drilling fluid with enhanced anti-settling properties useful for all types of drilling systems is described. The invention includes a process for providing anti-settling properties to both oil and invert oil (i.e., water in oil emulsion) based fluids as well as the additive itself. The drilling fluid drilling mud invention contains at least one reaction product of which the reactants comprise an alkoxylated aliphatic amino compound and an organic polycarboxylic anhydride or acid and a rheologically active clay-based material.

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Yardley, PA, United States of America

James Gambino