Tyndale Plains-hunter, Ltd.

Helene Curtis, Inc.

Ken Nelson

Murray H Reich

Jirina Kuzma

Ramiro Galleguillos

Darshna Bhatt

Hair spray compositions containing a carboxylated polyurethane resin, and having a low volatile organic content, are disclosed. The compositions have a low viscosity, and can be applied as a pump spray or as an aerosol, to hold the hair and impart excellent hair set retention properties. The hair spray compositions can be used with a curling iron or a blow dryer to style the hair.

Method of styling hair with hair spray compositions containing carboxylated polyurethane resins

An improved polyurethane is prepared by reacting a diol, an organic diisocyanate and a carboxylic acid with a critical selection of the amount of water in the reaction mixture. The polyurethane has improved adhesion, hydrophilicty and strength. The polymer has improved feel, and washability. Solutions of the polymer have low viscosity in aqueous solutions.

Hydrophilic polyether polyurethanes containing carboxylic acid

Hair spray compositions containing carboxylated polyurethane resins

An improved amphiphilic diol is prepared with a controlled type and amount of alkylene glycol, hydrophobic and hydrophilic diol with diisocyanate and water. Critical selection of the type, molecular weight and ratios of hydrophilic to hydrophobic diol, isocyanate to hydroxyl groups, average molecular weight of the diol component, the amount of water in the reaction mixture produces a polyuretheane having high slip, Shore A Hardness values, wet tensile strength and tear strength. This invention also includes uses of the polyurethane in catheters, shaving products, synthetic valves, veins and arteries, stents, ports, shunts and coatings. Preferably, the polyurethane is used in combination with a filler for application to rubber gloves. In addition, dispersions, lotions, gels and solutions can be formed of the polyurethane.

Hydrophicic and hydrophobic polyether polyurethanes and uses therefor

An improved polyurethane is prepared by reacting a diol component and an organic diisocyanate with critical selection of the amount of water in the reaction mixture and the diol component. The diol component is a long chain polyoxyethylene glycol optionally mixed with a low molecular weight polyoxyethylene glycol. A tough gel can be formed by mixing the polyurethane in a diol or triol and water solution. The tough gel can be used in burn and wound dressings, electroconductive pads, high slip materials and surgical implants. An optically clear gel can also be formed. Solutions and emulsions can be formed of the polymer and can be combined with fillers to form face creams and antiperspirants. A film can cover one side of the gel for burn and wound applications. The gel can be used in squeeze tubes and in spray cans in burn wound care dressings and industrial applications and in bags and containers for use in plastic surgery implants.

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Lambertville, NJ, United States of America

Ken Nelson